diff --git a/build-project.sh b/build-project.sh
deleted file mode 100755
index 949b9be..0000000
--- a/build-project.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-clear
-ceedling test:all
-cd src/
-gcc main.c createCustomer.c -o prog
-./prog
-rm prog
-cd ..
diff --git a/src/CustomerData.txt b/src/CustomerData.txt
new file mode 100644
index 0000000..3ac070f
--- /dev/null
+++ b/src/CustomerData.txt
@@ -0,0 +1,6 @@
+1234=example
+ID=1234
+forename=Max
+Surname=Mustermann
+password=example
+balance=0
diff --git a/src/CustomerProperties.h b/src/CustomerProperties.h
new file mode 100644
index 0000000..1972e12
--- /dev/null
+++ b/src/CustomerProperties.h
@@ -0,0 +1,14 @@
+typedef struct Customer{
+<<<<<<< HEAD
+<<<<<<< HEAD
+	int ID;
+	char *forename,*surname,*password;
+=======
+	char *ID, *forename, *surname, *password;
+>>>>>>> 3e7a7d3 (Implementation of functions LoginAsCustomer() and Login())
+=======
+	int ID;
+	char *forename,*surname,*password;
+>>>>>>> 4d810f5640d89a86c1f2feef3ab19118518ad49f
+	float balance;
+}customer_t;
diff --git a/src/LoginCustomer.c b/src/LoginCustomer.c
new file mode 100644
index 0000000..5c2a7a4
--- /dev/null
+++ b/src/LoginCustomer.c
@@ -0,0 +1,97 @@
+#include "LoginCustomer.h"
+
+bool checkLogin(bool loginSuccessful)
+{	
+	return (loginSuccessful) ? true : false;
+}
+
+void collectCustomerDataForLogin(int attempts)
+{
+	customer_t c;
+	c.ID = calloc(15+1,sizeof(char));
+	c.password = calloc(15+1, sizeof(char));
+	char digitCharacterFromUser, passwordCharacterFromUser;
+	int IDLengthCounter = 0, passwordLengthCounter = 0;
+	const int IDMaxLength = 16, passwordMaxLength = 16;
+	
+	printf("Enter ID:\n");
+	while(((digitCharacterFromUser=getchar()) != '\n')&&IDLengthCounter<IDMaxLength){
+			if(digitCharacterFromUser>='0'&&digitCharacterFromUser<='9'){
+				*(c.ID+IDLengthCounter) = digitCharacterFromUser;
+			}
+			else{
+				printf("Character entered is not a digit. Aborting.\n");
+				exit(-1);
+			}
+		++IDLengthCounter;	
+	}
+	*(c.ID+IDLengthCounter) = '\0';
+	
+	if(IDLengthCounter>=IDMaxLength){
+		printf("ID entered is too long. Aborting.\n");
+		exit(-1);
+	}
+
+	printf("Enter password:\n");
+	while((passwordCharacterFromUser=getchar())!='\n'&&passwordLengthCounter<passwordMaxLength){
+		*(c.password+passwordLengthCounter) = passwordCharacterFromUser;
+		++passwordLengthCounter;
+	}
+	*(c.password+passwordLengthCounter) = '\0';
+	
+	if(passwordLengthCounter>=passwordMaxLength){
+		printf("Password entered is too long. Aborting.\n");
+		exit(-1);
+	}
+	customer_t *ptr = &c;
+	bool loginSuccessful = loginCustomer(ptr);
+	if(loginSuccessful ) {
+		printf("Welcome to the menu!\n");
+		//call menu()
+	}else if(!loginSuccessful && attempts < MAX_LOGIN_ATTEMPTS){
+		printf("You have %d attempts left.\n", MAX_LOGIN_ATTEMPTS - attempts);
+		collectCustomerDataForLogin(++attempts);
+	}else{
+		printf("Maximum number of attempts reached. Program terminates.\n");
+		exit(-1);
+		//call error()
+	}
+	
+}
+
+bool loginCustomer(customer_t *c)
+{
+	bool foundCustomerEntryInFile = false;
+	char *searchForThisString = generateCheckString(c->ID,c->password);
+	char *lineFromCustomerFile = calloc(40,sizeof(char));
+	FILE *readCustomerFile = fopen("CustomerData.txt", "r");
+	if(readCustomerFile==NULL){
+		printf("Could not find file. Aborting.\n");
+		exit(-1);
+		//call error()
+	}
+	while((fscanf(readCustomerFile,"%s",lineFromCustomerFile)!=EOF)){
+			if(strcmp(searchForThisString,lineFromCustomerFile)==0){
+				foundCustomerEntryInFile = true;
+				break;
+			}
+	}
+	
+	if(checkLogin(foundCustomerEntryInFile)){
+		printf("Login successful.\n");
+		return foundCustomerEntryInFile;
+	}else{
+		printf("Login not successful.\n");
+	}
+	fclose(readCustomerFile);
+	return foundCustomerEntryInFile;
+}
+
+char *generateCheckString(char *ID, char *password){
+	int checkStringLength = strlen(ID) + 1 + strlen(password) + 1;
+	char *checkString = calloc(checkStringLength, sizeof(char));
+	checkString = strcat(ID,"=");
+	checkString = strcat(checkString,password);
+	*(checkString+checkStringLength) = '\0';
+	return checkString;
+}
diff --git a/src/LoginCustomer.h b/src/LoginCustomer.h
new file mode 100644
index 0000000..809765b
--- /dev/null
+++ b/src/LoginCustomer.h
@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include "CustomerProperties.h"
+#define MAX_LOGIN_ATTEMPTS 3
+char *generateCheckString(char *, char*);
+bool checkLogin(bool);
+void collectCustomerDataForLogin(int);
+bool loginCustomer(customer_t *);
diff --git a/src/StringManipulation.c b/src/StringManipulation.c
new file mode 100644
index 0000000..7ac306e
--- /dev/null
+++ b/src/StringManipulation.c
@@ -0,0 +1,68 @@
+#include "StringManipulation.h"
+/*Code written by Julius Philipp Engel, fdai7057*/
+
+char *stringConcatenation(char *string_1, char *string_2)
+{
+	int lengthStringOne = strlen(string_1);
+	int lengthStringTwo = strlen(string_2);
+	
+	if(lengthStringOne==0||lengthStringTwo==0){
+		printf("Empty strings are not allowed. Aborting.\n");
+		exit(-1);
+		//call error();
+	}
+	
+	const int totalLength = lengthStringOne + lengthStringTwo + 1;
+	char *result = calloc(totalLength, sizeof(char));
+	int i,j;
+	for(i=0,j=0;i<totalLength;++i){
+		if(i<lengthStringOne){
+			*(result+i) = *(string_1+i);
+		}else{
+			*(result+i) = *(string_2+j);
+			++j;
+		}
+	}
+	*(result+i) = '\0';
+	return result;
+}
+
+
+char *to_string(int number)
+{
+	if(number==0)
+	{
+		char *str = calloc(2,sizeof(char));
+		*(str) = '0';
+		*(str+1) = '\0';
+		return str;
+	}
+	else
+	{
+		int cpy = number, len = 0;
+		while(number>0){
+		++len;
+		number /= 10;
+		}
+		char *str = calloc(len+1, sizeof(char));
+		for(int i=0,j=len-1;i<len;++i,--j){
+		*(str+j) = '0' + (cpy % 10);
+		cpy /= 10;
+	}
+	*(str+len) = '\0';
+	return str;
+	}
+}
+
+char *generateCheckString(int customerID, char *customerPassword)
+{
+	char *IDString = to_string(customerID);
+	int IDLength = strlen(IDString);
+	int passwordLength = strlen(customerPassword);
+	int checkStringLength = IDLength + 1 + passwordLength + 1;
+	char *checkString = calloc(checkStringLength, sizeof(char));
+	checkString = strcat(IDString, "=");
+	checkString = strcat(checkString, customerPassword);
+	*(checkString+checkStringLength) = '\0';
+	return checkString;
+}
diff --git a/src/StringManipulation.h b/src/StringManipulation.h
new file mode 100644
index 0000000..a74a93c
--- /dev/null
+++ b/src/StringManipulation.h
@@ -0,0 +1,6 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+char *stringConcatenation(char *, char *);
+char *to_string(int);
+char *generateCheckString(int, char *);
diff --git a/src/docs.txt b/src/docs.txt
new file mode 100644
index 0000000..c76de12
--- /dev/null
+++ b/src/docs.txt
@@ -0,0 +1,14 @@
+char *stringConcatenation(char string_1*, char string_2*):
+
+This function takes two char pointers. In this function a new string is created. This new string is the concatenation of string_1 and string_2. The size of the new string is the length of string_1 plus the length of string_2 plus one for '\0'. This function is needed when creating an unique check string for a customer.
+
+char *to_string(int number):
+
+This function takes an integer variable as its argument. It returns an string that contains the digits of number. For example to_string(176) would return "176\0". This function is needed to write data in form of characters into the customer file. 
+
+
+char *generateCheckString(int customerID, char *password): 
+
+The purpose of this function is to generate a string that is needed when a user wants to login. This string is searched for in the customer-data file and if it is found, the login is successful. This function is needed when a new user is created because then it is written in the file for the first time. 
+The format of the returned string is [ID]=[PASSWORD]. 
+For example generateCheckString(177,"tree") would return "177=tree\0".
diff --git a/src/main.c b/src/main.c
deleted file mode 100644
index 84a49ac..0000000
--- a/src/main.c
+++ /dev/null
@@ -1,4 +0,0 @@
-#include "createCustomer.h"
-int main(){
-	collectCustomerProperties();
-}
diff --git a/team.md b/team.md
deleted file mode 100644
index f0e0a28..0000000
--- a/team.md
+++ /dev/null
@@ -1,6 +0,0 @@
-- Can Hacioglu, fdlt3817
-- Atharva Kishor Naik, fdai7514
-- Julius Philipp Engel, fdai7057
-- Shivam Chaudhary, fdlt3781
-- Mohamed Yahya Dahi, fdai6618
-- Haytham Daoula, fdai7207
\ No newline at end of file
diff --git a/tests/build/test/cache/defines_dependency.yml b/tests/build/test/cache/defines_dependency.yml
new file mode 100644
index 0000000..c173160
--- /dev/null
+++ b/tests/build/test/cache/defines_dependency.yml
@@ -0,0 +1,11 @@
+---
+<<<<<<< HEAD
+<<<<<<< HEAD
+"/home/julius/Documents/Studium/Informatik/1. Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/StringManipulation.c":
+=======
+"/home/julius/Documents/Studium/Informatik/1. Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.c":
+>>>>>>> 0155f61 (implementation of unit tests for checkLogin())
+=======
+"/home/julius/Documents/Studium/Informatik/1. Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.c":
+>>>>>>> 4d810f5640d89a86c1f2feef3ab19118518ad49f
+- TEST
diff --git a/tests/build/test/cache/input.yml b/tests/build/test/cache/input.yml
new file mode 100644
index 0000000..fb9e794
--- /dev/null
+++ b/tests/build/test/cache/input.yml
@@ -0,0 +1,242 @@
+---
+:project:
+  :use_exceptions: false
+  :use_mocks: true
+  :compile_threads: 1
+  :test_threads: 1
+  :use_test_preprocessor: true
+  :use_preprocessor_directives: false
+  :use_deep_dependencies: false
+  :generate_deep_dependencies: true
+  :auto_link_deep_dependencies: false
+  :test_file_prefix: test_
+  :options_paths: []
+  :release_build: false
+  :use_auxiliary_dependencies: true
+  :build_root: build
+  :which_ceedling: gem
+  :ceedling_version: 0.31.1
+  :default_tasks:
+  - test:all
+:release_build:
+  :use_assembly: false
+  :artifacts: []
+:paths:
+  :test:
+  - "+:test/**"
+  - "-:test/support"
+  :source:
+  - "/home/julius/Documents/Studium/Informatik/1. Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/**"
+  :support:
+  - test/support
+  :include: []
+  :libraries: []
+  :test_toolchain_include: []
+  :release_toolchain_include: []
+:files:
+  :test: []
+  :source: []
+  :assembly: []
+  :support: []
+  :include: []
+:environment:
+- :rake_columns: '120'
+:defines:
+  :test:
+  - &1 []
+  - TEST
+  :test_preprocess:
+  - *1
+  - TEST
+  :release: []
+  :release_preprocess: []
+  :use_test_definition: false
+  :common: []
+:libraries:
+  :flag: "-l${1}"
+  :path_flag: "-L ${1}"
+  :test: []
+  :test_preprocess: []
+  :release: []
+  :release_preprocess: []
+  :placement: :end
+  :system: []
+:flags: {}
+:extension:
+  :header: ".h"
+  :source: ".c"
+  :assembly: ".s"
+  :object: ".o"
+  :libraries:
+  - ".a"
+  - ".so"
+  :executable: ".out"
+  :map: ".map"
+  :list: ".lst"
+  :testpass: ".pass"
+  :testfail: ".fail"
+  :dependencies: ".d"
+:unity:
+  :vendor_path: "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor"
+  :defines: []
+:cmock:
+  :vendor_path: "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor"
+  :defines: []
+  :includes: []
+  :mock_prefix: mock_
+  :when_no_prototypes: :warn
+  :enforce_strict_ordering: true
+  :plugins:
+  - :ignore
+  - :callback
+  :treat_as:
+    uint8: HEX8
+    uint16: HEX16
+    uint32: UINT32
+    int8: INT8
+    bool: UINT8
+  :mock_path: build/test/mocks
+  :verbosity: 3
+  :unity_helper: false
+:cexception:
+  :vendor_path: "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor"
+  :defines: []
+:test_runner:
+  :includes: []
+  :file_suffix: _runner
+:tools:
+  :test_compiler:
+    :executable: gcc
+    :name: default_test_compiler
+    :stderr_redirect: :none
+    :background_exec: :none
+    :optional: false
+    :arguments:
+    - ''
+    - ''
+    - -I"$": COLLECTION_PATHS_TEST_SUPPORT_SOURCE_INCLUDE_VENDOR
+    - -I"$": COLLECTION_PATHS_TEST_TOOLCHAIN_INCLUDE
+    - "-D$": COLLECTION_DEFINES_TEST_AND_VENDOR
+    - "-DGNU_COMPILER"
+    - "-g"
+    - ''
+    - -c "${1}"
+    - -o "${2}"
+    - "-MMD"
+    - -MF "${4}"
+  :test_fixture:
+    :executable: "${1}"
+    :name: default_test_fixture
+    :stderr_redirect: :auto
+    :background_exec: :none
+    :optional: false
+    :arguments: []
+  :test_linker:
+    :executable: gcc
+    :name: default_test_linker
+    :stderr_redirect: :none
+    :background_exec: :none
+    :optional: false
+    :arguments:
+    - ''
+    - ''
+    - ''
+    - '"${1}"'
+    - "${5}"
+    - -o "${2}"
+    - ''
+    - "${4}"
+    - ''
+  :test_file_preprocessor:
+    :executable: gcc
+    :name: default_test_file_preprocessor
+    :stderr_redirect: :none
+    :background_exec: :none
+    :optional: false
+    :arguments:
+    - ''
+    - ''
+    - "-E"
+    - -I"$": COLLECTION_PATHS_TEST_SUPPORT_SOURCE_INCLUDE_VENDOR
+    - -I"$": COLLECTION_PATHS_TEST_TOOLCHAIN_INCLUDE
+    - "-D$": COLLECTION_DEFINES_TEST_AND_VENDOR
+    - "-D$": DEFINES_TEST_PREPROCESS
+    - "-DGNU_COMPILER"
+    - '"${1}"'
+    - -o "${2}"
+  :test_file_preprocessor_directives:
+    :executable: gcc
+    :name: default_test_file_preprocessor_directives
+    :stderr_redirect: :none
+    :background_exec: :none
+    :optional: false
+    :arguments:
+    - "-E"
+    - -I"$": COLLECTION_PATHS_TEST_SUPPORT_SOURCE_INCLUDE_VENDOR
+    - -I"$": COLLECTION_PATHS_TEST_TOOLCHAIN_INCLUDE
+    - "-D$": COLLECTION_DEFINES_TEST_AND_VENDOR
+    - "-D$": DEFINES_TEST_PREPROCESS
+    - "-DGNU_COMPILER"
+    - "-fdirectives-only"
+    - '"${1}"'
+    - -o "${2}"
+  :test_includes_preprocessor:
+    :executable: gcc
+    :name: default_test_includes_preprocessor
+    :stderr_redirect: :none
+    :background_exec: :none
+    :optional: false
+    :arguments:
+    - ''
+    - ''
+    - "-E"
+    - "-MM"
+    - "-MG"
+    - -I"$": COLLECTION_PATHS_TEST_SUPPORT_SOURCE_INCLUDE_VENDOR
+    - -I"$": COLLECTION_PATHS_TEST_TOOLCHAIN_INCLUDE
+    - "-D$": COLLECTION_DEFINES_TEST_AND_VENDOR
+    - "-D$": DEFINES_TEST_PREPROCESS
+    - "-DGNU_COMPILER"
+    - '"${1}"'
+:test_compiler:
+  :arguments: []
+:test_linker:
+  :arguments: []
+:test_fixture:
+  :arguments: []
+  :link_objects: []
+:test_includes_preprocessor:
+  :arguments: []
+:test_file_preprocessor:
+  :arguments: []
+:test_file_preprocessor_directives:
+  :arguments: []
+:test_dependencies_generator:
+  :arguments: []
+:release_compiler:
+  :arguments: []
+:release_linker:
+  :arguments: []
+:release_assembler:
+  :arguments: []
+:release_dependencies_generator:
+  :arguments: []
+:plugins:
+  :load_paths:
+  - "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/lib/../plugins"
+  :enabled:
+  - stdout_pretty_tests_report
+  - module_generator
+  :display_raw_test_results: false
+  :stdout_pretty_tests_report_path: "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/lib/../plugins/stdout_pretty_tests_report"
+  :module_generator_path: "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/lib/../plugins/module_generator"
+:gcov:
+  :reports:
+  - HtmlDetailed
+  :gcovr:
+    :html_medium_threshold: 75
+    :html_high_threshold: 90
+:module_generator:
+  :project_root: "./"
+  :source_root: src/
+  :test_root: test/
diff --git a/tests/build/test/cache/test_LoginCustomer.c b/tests/build/test/cache/test_LoginCustomer.c
new file mode 100644
index 0000000..28f8ec8
--- /dev/null
+++ b/tests/build/test/cache/test_LoginCustomer.c
@@ -0,0 +1,87 @@
+#include "Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.h"
+#include "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+void setUp(){};
+
+void tearDown(){};
+
+void test_checkLogin()
+
+{
+
+
+
+ 
+
+_Bool 
+
+     expected_test_values_compute_to_true[] = {4==4,
+
+                                                    1
+
+                                                        ==
+
+                                                          1
+
+                                                              , 1==1, 
+
+                                                                      0
+
+                                                                           ==
+
+                                                                             0
+
+                                                                                  , 'z'=='z', '='=='=',0x1A==0x1A};
+
+ int length_1 = sizeof(expected_test_values_compute_to_true)/sizeof(
+
+                                                                   _Bool
+
+                                                                       );
+
+
+
+ 
+
+_Bool 
+
+     expected_test_values_compute_to_false[] = {4!=4,
+
+                                                     1
+
+                                                         ==
+
+                                                           0
+
+                                                                ,1==0,
+
+                                                                      0
+
+                                                                           ==
+
+                                                                             1
+
+                                                                                 ,'z'=='x','!'==')',0x1A==0x2B};
+
+ int length_2 = sizeof(expected_test_values_compute_to_false)/sizeof(
+
+                                                                    _Bool
+
+                                                                        );
+
+
+
+
+
+ for(int i=0;i<7;++i) {
+
+  do {if ((checkLogin(expected_test_values_compute_to_true[i]))) {} else {UnityFail( ((" Expected TRUE Was FALSE")), (UNITY_UINT)((UNITY_UINT)(16)));}} while(0);
+
+ }
+
+ for(int i=0;i<7;++i){
+
+  do {if (!(checkLogin(expected_test_values_compute_to_false[i]))) {} else {UnityFail( ((" Expected FALSE Was TRUE")), (UNITY_UINT)((UNITY_UINT)(19)));}} while(0);
+
+ }
+
+}
diff --git a/tests/build/test/cache/test_StringManipulation.c b/tests/build/test/cache/test_StringManipulation.c
new file mode 100644
index 0000000..0d87c99
--- /dev/null
+++ b/tests/build/test/cache/test_StringManipulation.c
@@ -0,0 +1,195 @@
+#include "Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/StringManipulation.h"
+#include "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+
+
+
+
+void test_to_string()
+
+{
+
+
+
+ char *result_1[] = {"0","1","2","3","4","5","6","7","8","9","10"};
+
+ char *result_2[] = {"500","502","504","506","508","510","512","514","516","518"};
+
+ char *result_3[] = {"1000","2000","3000","4000","5000","6000","7000","8000","9000","10000"};
+
+ char *result_4[] = {"9999","8999","7999","6999","5999","4999","3999","2999","1999","999"};
+
+ char *result_5[] = {"1000000","2000000","3000000","4000000","5000000","6000000","7000000",
+
+       "8000000","9000000","10000000"};
+
+
+
+ for(int i=0;i<=10;++i){
+
+  UnityAssertEqualString((const char*)((result_1[i])), (const char*)((to_string(i))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(17));
+
+ }
+
+
+
+ for(int i=0, j=500;i<10;++i,j+=2){
+
+  UnityAssertEqualString((const char*)((result_2[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(21));
+
+ }
+
+
+
+ for(int i=0, j=1000;i<10;++i,j+=1000){
+
+  UnityAssertEqualString((const char*)((result_3[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(25));
+
+ }
+
+
+
+ for(int i=0, j=9999;i<10;++i,j-=1000){
+
+  UnityAssertEqualString((const char*)((result_4[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(29));
+
+ }
+
+ for(int i=0, j=1000000;i<10;++i,j+=1000000){
+
+  UnityAssertEqualString((const char*)((result_5[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(32));
+
+ }
+
+
+
+}
+
+
+
+
+
+void test_generateCheckString()
+
+{
+
+
+
+ int numbers_1[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25};
+
+ char *strings_1[] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
+
+ char *result_1[] = {"0=a","1=b","2=c","3=d","4=e","5=f","6=g","7=h","8=i","9=j","10=k","11=l","12=m","13=n","14=o","15=p","16=q","17=r", "18=s","19=t","20=u","21=v","22=w","23=x","24=y","25=z"};
+
+ for(int i=0;i<26;++i){
+
+  UnityAssertEqualString((const char*)((result_1[i])), (const char*)((generateCheckString(numbers_1[i],*(strings_1+i)))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(45));
+
+ }
+
+
+
+ int numbers_2[] = {0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025};
+
+ char *strings_2[] = {"z","zy","zyx","zyxw","zyxwv","zyxwvu","zyxwvut","zyxwvuts","zyxwvutsr","zyxwvutsrq","zyxwvutsrqp",
+
+        "zyxwvutsrqpo","zyxwvutsrqpon","zyxwvutsrqponm","zyxwvutsrqponml","zyxwvutsrqponmlk",
+
+        "zyxwvutsrqponmlkj","zyxwvutsrqponmlkji","zyxwvutsrqponmlkjih","zyxwvutsrqponmlkjihg","zyxwvutsrqponmlkjihgf",
+
+         "zyxwvutsrqponmlkjihgfe","zyxwvutsrqponmlkjihgfed","zyxwvutsrqponmlkjihgfedc","zyxwvutsrqponmlkjihgfedcb",
+
+         "zyxwvutsrqponmlkjihgfedcba"};
+
+ char *result_2[] = {"0=z","1=zy","1=zyx","2=zyxw","3=zyxwv","5=zyxwvu","8=zyxwvut","13=zyxwvuts","21=zyxwvutsr","34=zyxwvutsrq",
+
+                     "55=zyxwvutsrqp","89=zyxwvutsrqpo","144=zyxwvutsrqpon","233=zyxwvutsrqponm","377=zyxwvutsrqponml",
+
+       "610=zyxwvutsrqponmlk","987=zyxwvutsrqponmlkj","1597=zyxwvutsrqponmlkji","2584=zyxwvutsrqponmlkjih",
+
+       "4181=zyxwvutsrqponmlkjihg","6765=zyxwvutsrqponmlkjihgf","10946=zyxwvutsrqponmlkjihgfe",
+
+       "17711=zyxwvutsrqponmlkjihgfed","28657=zyxwvutsrqponmlkjihgfedc","46368=zyxwvutsrqponmlkjihgfedcb",
+
+       "75025=zyxwvutsrqponmlkjihgfedcba"};
+
+ for(int i=0;i<26;++i){
+
+  UnityAssertEqualString((const char*)((result_2[i])), (const char*)((generateCheckString(numbers_2[i],*(strings_2+i)))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(61));
+
+ }
+
+
+
+ srand(time(0));
+
+ int random_number=0;
+
+ char *random_numbers_strings[20];
+
+ int random_numbers[20];
+
+ for(int i=0;i<20;++i){
+
+  random_number = (rand() % 100) + 1;
+
+  random_numbers_strings[i] = to_string(random_number);
+
+  random_numbers[i] = random_number;
+
+ }
+
+ char *strings_3[] = {"tree","plant","tea","programming","assembler","unix","BSD","snow","mountain","table","wood","forest", "calculator","book","light","keyboard","old","paper","pencil","voltage"};
+
+ char *result_3[20];
+
+ for(int i=0;i<20;++i){
+
+  random_numbers_strings[i] = strcat(random_numbers_strings[i],"=");
+
+  result_3[i] = strcat(random_numbers_strings[i],strings_3[i]);
+
+  printf("%s\n",result_3[i]);
+
+ }
+
+ for(int i=0;i<20;++i){
+
+  UnityAssertEqualString((const char*)((result_3[i])), (const char*)((generateCheckString(random_numbers[i],strings_3[i]))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(81));
+
+ }
+
+}
diff --git a/tests/build/test/dependencies/LoginCustomer.d b/tests/build/test/dependencies/LoginCustomer.d
new file mode 100644
index 0000000..45e2415
--- /dev/null
+++ b/tests/build/test/dependencies/LoginCustomer.d
@@ -0,0 +1,3 @@
+build/test/out/c/LoginCustomer.o: \
+ /home/julius/Documents/Studium/Informatik/1.\ Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.c \
+ /home/julius/Documents/Studium/Informatik/1.\ Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.h
diff --git a/tests/build/test/dependencies/StringManipulation.d b/tests/build/test/dependencies/StringManipulation.d
new file mode 100644
index 0000000..625c690
--- /dev/null
+++ b/tests/build/test/dependencies/StringManipulation.d
@@ -0,0 +1,3 @@
+build/test/out/c/StringManipulation.o: \
+ /home/julius/Documents/Studium/Informatik/1.\ Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/StringManipulation.c \
+ /home/julius/Documents/Studium/Informatik/1.\ Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/StringManipulation.h
diff --git a/tests/build/test/dependencies/cmock.d b/tests/build/test/dependencies/cmock.d
new file mode 100644
index 0000000..82b64c9
--- /dev/null
+++ b/tests/build/test/dependencies/cmock.d
@@ -0,0 +1,6 @@
+build/test/out/c/cmock.o: \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/cmock/src/cmock.c \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/cmock/src/cmock.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/cmock/src/cmock_internals.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h
diff --git a/tests/build/test/dependencies/test_LoginCustomer.d b/tests/build/test/dependencies/test_LoginCustomer.d
new file mode 100644
index 0000000..1a634fe
--- /dev/null
+++ b/tests/build/test/dependencies/test_LoginCustomer.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_LoginCustomer.o: test/test_LoginCustomer.c \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h \
+ /home/julius/Documents/Studium/Informatik/1.\ Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.h
diff --git a/tests/build/test/dependencies/test_LoginCustomer_runner.d b/tests/build/test/dependencies/test_LoginCustomer_runner.d
new file mode 100644
index 0000000..1649170
--- /dev/null
+++ b/tests/build/test/dependencies/test_LoginCustomer_runner.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_LoginCustomer_runner.o: \
+ build/test/runners/test_LoginCustomer_runner.c \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h
diff --git a/tests/build/test/dependencies/test_StringManipulation.d b/tests/build/test/dependencies/test_StringManipulation.d
new file mode 100644
index 0000000..2f65b3c
--- /dev/null
+++ b/tests/build/test/dependencies/test_StringManipulation.d
@@ -0,0 +1,5 @@
+build/test/out/c/test_StringManipulation.o: \
+ test/test_StringManipulation.c \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h \
+ /home/julius/Documents/Studium/Informatik/1.\ Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/StringManipulation.h
diff --git a/tests/build/test/dependencies/test_StringManipulation_runner.d b/tests/build/test/dependencies/test_StringManipulation_runner.d
new file mode 100644
index 0000000..c54fbb6
--- /dev/null
+++ b/tests/build/test/dependencies/test_StringManipulation_runner.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_StringManipulation_runner.o: \
+ build/test/runners/test_StringManipulation_runner.c \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h
diff --git a/tests/build/test/dependencies/unity.d b/tests/build/test/dependencies/unity.d
new file mode 100644
index 0000000..02f2997
--- /dev/null
+++ b/tests/build/test/dependencies/unity.d
@@ -0,0 +1,4 @@
+build/test/out/c/unity.o: \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.c \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h
diff --git a/tests/build/test/out/c/LoginCustomer.o b/tests/build/test/out/c/LoginCustomer.o
new file mode 100644
index 0000000..82cb77b
Binary files /dev/null and b/tests/build/test/out/c/LoginCustomer.o differ
diff --git a/tests/build/test/out/c/StringManipulation.o b/tests/build/test/out/c/StringManipulation.o
new file mode 100644
index 0000000..531a498
Binary files /dev/null and b/tests/build/test/out/c/StringManipulation.o differ
diff --git a/tests/build/test/out/c/cmock.o b/tests/build/test/out/c/cmock.o
new file mode 100644
index 0000000..162be59
Binary files /dev/null and b/tests/build/test/out/c/cmock.o differ
diff --git a/tests/build/test/out/c/test_LoginCustomer.o b/tests/build/test/out/c/test_LoginCustomer.o
new file mode 100644
index 0000000..6c5aeaa
Binary files /dev/null and b/tests/build/test/out/c/test_LoginCustomer.o differ
diff --git a/tests/build/test/out/c/test_LoginCustomer_runner.o b/tests/build/test/out/c/test_LoginCustomer_runner.o
new file mode 100644
index 0000000..f839ac1
Binary files /dev/null and b/tests/build/test/out/c/test_LoginCustomer_runner.o differ
diff --git a/tests/build/test/out/c/test_StringManipulation.o b/tests/build/test/out/c/test_StringManipulation.o
new file mode 100644
index 0000000..4e6507a
Binary files /dev/null and b/tests/build/test/out/c/test_StringManipulation.o differ
diff --git a/tests/build/test/out/c/test_StringManipulation_runner.o b/tests/build/test/out/c/test_StringManipulation_runner.o
new file mode 100644
index 0000000..a16f5ca
Binary files /dev/null and b/tests/build/test/out/c/test_StringManipulation_runner.o differ
diff --git a/tests/build/test/out/c/unity.o b/tests/build/test/out/c/unity.o
new file mode 100644
index 0000000..ba42096
Binary files /dev/null and b/tests/build/test/out/c/unity.o differ
diff --git a/tests/build/test/out/test_LoginCustomer.out b/tests/build/test/out/test_LoginCustomer.out
new file mode 100755
index 0000000..3c7dca5
Binary files /dev/null and b/tests/build/test/out/test_LoginCustomer.out differ
diff --git a/tests/build/test/out/test_StringManipulation.out b/tests/build/test/out/test_StringManipulation.out
new file mode 100755
index 0000000..e8425d0
Binary files /dev/null and b/tests/build/test/out/test_StringManipulation.out differ
diff --git a/tests/build/test/preprocess/files/test_LoginCustomer.c b/tests/build/test/preprocess/files/test_LoginCustomer.c
new file mode 100644
index 0000000..28f8ec8
--- /dev/null
+++ b/tests/build/test/preprocess/files/test_LoginCustomer.c
@@ -0,0 +1,87 @@
+#include "Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.h"
+#include "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+void setUp(){};
+
+void tearDown(){};
+
+void test_checkLogin()
+
+{
+
+
+
+ 
+
+_Bool 
+
+     expected_test_values_compute_to_true[] = {4==4,
+
+                                                    1
+
+                                                        ==
+
+                                                          1
+
+                                                              , 1==1, 
+
+                                                                      0
+
+                                                                           ==
+
+                                                                             0
+
+                                                                                  , 'z'=='z', '='=='=',0x1A==0x1A};
+
+ int length_1 = sizeof(expected_test_values_compute_to_true)/sizeof(
+
+                                                                   _Bool
+
+                                                                       );
+
+
+
+ 
+
+_Bool 
+
+     expected_test_values_compute_to_false[] = {4!=4,
+
+                                                     1
+
+                                                         ==
+
+                                                           0
+
+                                                                ,1==0,
+
+                                                                      0
+
+                                                                           ==
+
+                                                                             1
+
+                                                                                 ,'z'=='x','!'==')',0x1A==0x2B};
+
+ int length_2 = sizeof(expected_test_values_compute_to_false)/sizeof(
+
+                                                                    _Bool
+
+                                                                        );
+
+
+
+
+
+ for(int i=0;i<7;++i) {
+
+  do {if ((checkLogin(expected_test_values_compute_to_true[i]))) {} else {UnityFail( ((" Expected TRUE Was FALSE")), (UNITY_UINT)((UNITY_UINT)(16)));}} while(0);
+
+ }
+
+ for(int i=0;i<7;++i){
+
+  do {if (!(checkLogin(expected_test_values_compute_to_false[i]))) {} else {UnityFail( ((" Expected FALSE Was TRUE")), (UNITY_UINT)((UNITY_UINT)(19)));}} while(0);
+
+ }
+
+}
diff --git a/tests/build/test/preprocess/files/test_StringManipulation.c b/tests/build/test/preprocess/files/test_StringManipulation.c
new file mode 100644
index 0000000..0d87c99
--- /dev/null
+++ b/tests/build/test/preprocess/files/test_StringManipulation.c
@@ -0,0 +1,195 @@
+#include "Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/StringManipulation.h"
+#include "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+
+
+
+
+void test_to_string()
+
+{
+
+
+
+ char *result_1[] = {"0","1","2","3","4","5","6","7","8","9","10"};
+
+ char *result_2[] = {"500","502","504","506","508","510","512","514","516","518"};
+
+ char *result_3[] = {"1000","2000","3000","4000","5000","6000","7000","8000","9000","10000"};
+
+ char *result_4[] = {"9999","8999","7999","6999","5999","4999","3999","2999","1999","999"};
+
+ char *result_5[] = {"1000000","2000000","3000000","4000000","5000000","6000000","7000000",
+
+       "8000000","9000000","10000000"};
+
+
+
+ for(int i=0;i<=10;++i){
+
+  UnityAssertEqualString((const char*)((result_1[i])), (const char*)((to_string(i))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(17));
+
+ }
+
+
+
+ for(int i=0, j=500;i<10;++i,j+=2){
+
+  UnityAssertEqualString((const char*)((result_2[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(21));
+
+ }
+
+
+
+ for(int i=0, j=1000;i<10;++i,j+=1000){
+
+  UnityAssertEqualString((const char*)((result_3[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(25));
+
+ }
+
+
+
+ for(int i=0, j=9999;i<10;++i,j-=1000){
+
+  UnityAssertEqualString((const char*)((result_4[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(29));
+
+ }
+
+ for(int i=0, j=1000000;i<10;++i,j+=1000000){
+
+  UnityAssertEqualString((const char*)((result_5[i])), (const char*)((to_string(j))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(32));
+
+ }
+
+
+
+}
+
+
+
+
+
+void test_generateCheckString()
+
+{
+
+
+
+ int numbers_1[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25};
+
+ char *strings_1[] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
+
+ char *result_1[] = {"0=a","1=b","2=c","3=d","4=e","5=f","6=g","7=h","8=i","9=j","10=k","11=l","12=m","13=n","14=o","15=p","16=q","17=r", "18=s","19=t","20=u","21=v","22=w","23=x","24=y","25=z"};
+
+ for(int i=0;i<26;++i){
+
+  UnityAssertEqualString((const char*)((result_1[i])), (const char*)((generateCheckString(numbers_1[i],*(strings_1+i)))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(45));
+
+ }
+
+
+
+ int numbers_2[] = {0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025};
+
+ char *strings_2[] = {"z","zy","zyx","zyxw","zyxwv","zyxwvu","zyxwvut","zyxwvuts","zyxwvutsr","zyxwvutsrq","zyxwvutsrqp",
+
+        "zyxwvutsrqpo","zyxwvutsrqpon","zyxwvutsrqponm","zyxwvutsrqponml","zyxwvutsrqponmlk",
+
+        "zyxwvutsrqponmlkj","zyxwvutsrqponmlkji","zyxwvutsrqponmlkjih","zyxwvutsrqponmlkjihg","zyxwvutsrqponmlkjihgf",
+
+         "zyxwvutsrqponmlkjihgfe","zyxwvutsrqponmlkjihgfed","zyxwvutsrqponmlkjihgfedc","zyxwvutsrqponmlkjihgfedcb",
+
+         "zyxwvutsrqponmlkjihgfedcba"};
+
+ char *result_2[] = {"0=z","1=zy","1=zyx","2=zyxw","3=zyxwv","5=zyxwvu","8=zyxwvut","13=zyxwvuts","21=zyxwvutsr","34=zyxwvutsrq",
+
+                     "55=zyxwvutsrqp","89=zyxwvutsrqpo","144=zyxwvutsrqpon","233=zyxwvutsrqponm","377=zyxwvutsrqponml",
+
+       "610=zyxwvutsrqponmlk","987=zyxwvutsrqponmlkj","1597=zyxwvutsrqponmlkji","2584=zyxwvutsrqponmlkjih",
+
+       "4181=zyxwvutsrqponmlkjihg","6765=zyxwvutsrqponmlkjihgf","10946=zyxwvutsrqponmlkjihgfe",
+
+       "17711=zyxwvutsrqponmlkjihgfed","28657=zyxwvutsrqponmlkjihgfedc","46368=zyxwvutsrqponmlkjihgfedcb",
+
+       "75025=zyxwvutsrqponmlkjihgfedcba"};
+
+ for(int i=0;i<26;++i){
+
+  UnityAssertEqualString((const char*)((result_2[i])), (const char*)((generateCheckString(numbers_2[i],*(strings_2+i)))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(61));
+
+ }
+
+
+
+ srand(time(0));
+
+ int random_number=0;
+
+ char *random_numbers_strings[20];
+
+ int random_numbers[20];
+
+ for(int i=0;i<20;++i){
+
+  random_number = (rand() % 100) + 1;
+
+  random_numbers_strings[i] = to_string(random_number);
+
+  random_numbers[i] = random_number;
+
+ }
+
+ char *strings_3[] = {"tree","plant","tea","programming","assembler","unix","BSD","snow","mountain","table","wood","forest", "calculator","book","light","keyboard","old","paper","pencil","voltage"};
+
+ char *result_3[20];
+
+ for(int i=0;i<20;++i){
+
+  random_numbers_strings[i] = strcat(random_numbers_strings[i],"=");
+
+  result_3[i] = strcat(random_numbers_strings[i],strings_3[i]);
+
+  printf("%s\n",result_3[i]);
+
+ }
+
+ for(int i=0;i<20;++i){
+
+  UnityAssertEqualString((const char*)((result_3[i])), (const char*)((generateCheckString(random_numbers[i],strings_3[i]))), (
+
+ ((void *)0)
+
+ ), (UNITY_UINT)(81));
+
+ }
+
+}
diff --git a/tests/build/test/preprocess/includes/test_LoginCustomer.c b/tests/build/test/preprocess/includes/test_LoginCustomer.c
new file mode 100644
index 0000000..8d24aa9
--- /dev/null
+++ b/tests/build/test/preprocess/includes/test_LoginCustomer.c
@@ -0,0 +1,3 @@
+---
+- "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+- Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/LoginCustomer.h
diff --git a/tests/build/test/preprocess/includes/test_StringManipulation.c b/tests/build/test/preprocess/includes/test_StringManipulation.c
new file mode 100644
index 0000000..77ded96
--- /dev/null
+++ b/tests/build/test/preprocess/includes/test_StringManipulation.c
@@ -0,0 +1,3 @@
+---
+- "/var/lib/gems/2.7.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+- Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/StringManipulation.h
diff --git a/tests/build/test/results/test_LoginCustomer.pass b/tests/build/test/results/test_LoginCustomer.pass
new file mode 100644
index 0000000..730ed0b
--- /dev/null
+++ b/tests/build/test/results/test_LoginCustomer.pass
@@ -0,0 +1,18 @@
+---
+:source:
+  :path: test
+  :file: test_LoginCustomer.c
+:successes:
+- :test: test_checkLogin
+  :line: 5
+  :message: ''
+  :unity_test_time: 0
+:failures: []
+:ignores: []
+:counts:
+  :total: 1
+  :passed: 1
+  :failed: 0
+  :ignored: 0
+:stdout: []
+:time: 0.001912861000164412
diff --git a/tests/build/test/results/test_StringManipulation.pass b/tests/build/test/results/test_StringManipulation.pass
new file mode 100644
index 0000000..84a7b10
--- /dev/null
+++ b/tests/build/test/results/test_StringManipulation.pass
@@ -0,0 +1,42 @@
+---
+:source:
+  :path: test
+  :file: test_StringManipulation.c
+:successes:
+- :test: test_to_string
+  :line: 6
+  :message: ''
+  :unity_test_time: 0
+- :test: test_generateCheckString
+  :line: 38
+  :message: ''
+  :unity_test_time: 0
+:failures: []
+:ignores: []
+:counts:
+  :total: 2
+  :passed: 2
+  :failed: 0
+  :ignored: 0
+:stdout:
+- 9=tree
+- 26=plant
+- 92=tea
+- 31=programming
+- 75=assembler
+- 28=unix
+- 92=BSD
+- 99=snow
+- 10=mountain
+- 43=table
+- 92=wood
+- 98=forest
+- 3=calculator
+- 32=book
+- 29=light
+- 92=keyboard
+- 35=old
+- 27=paper
+- 85=pencil
+- 91=voltage
+:time: 0.0019293400000606198
diff --git a/tests/build/test/runners/test_LoginCustomer_runner.c b/tests/build/test/runners/test_LoginCustomer_runner.c
new file mode 100644
index 0000000..f061ca9
--- /dev/null
+++ b/tests/build/test/runners/test_LoginCustomer_runner.c
@@ -0,0 +1,81 @@
+/* AUTOGENERATED FILE. DO NOT EDIT. */
+
+/*=======Automagically Detected Files To Include=====*/
+#include "unity.h"
+
+int GlobalExpectCount;
+int GlobalVerifyOrder;
+char* GlobalOrderError;
+
+/*=======External Functions This Runner Calls=====*/
+extern void setUp(void);
+extern void tearDown(void);
+extern void test_checkLogin();
+
+
+/*=======Mock Management=====*/
+static void CMock_Init(void)
+{
+  GlobalExpectCount = 0;
+  GlobalVerifyOrder = 0;
+  GlobalOrderError = NULL;
+}
+static void CMock_Verify(void)
+{
+}
+static void CMock_Destroy(void)
+{
+}
+
+/*=======Test Reset Options=====*/
+void resetTest(void);
+void resetTest(void)
+{
+  tearDown();
+  CMock_Verify();
+  CMock_Destroy();
+  CMock_Init();
+  setUp();
+}
+void verifyTest(void);
+void verifyTest(void)
+{
+  CMock_Verify();
+}
+
+/*=======Test Runner Used To Run Each Test=====*/
+static void run_test(UnityTestFunction func, const char* name, UNITY_LINE_TYPE line_num)
+{
+    Unity.CurrentTestName = name;
+    Unity.CurrentTestLineNumber = line_num;
+#ifdef UNITY_USE_COMMAND_LINE_ARGS
+    if (!UnityTestMatches())
+        return;
+#endif
+    Unity.NumberOfTests++;
+    UNITY_CLR_DETAILS();
+    UNITY_EXEC_TIME_START();
+    CMock_Init();
+    if (TEST_PROTECT())
+    {
+        setUp();
+        func();
+    }
+    if (TEST_PROTECT())
+    {
+        tearDown();
+        CMock_Verify();
+    }
+    CMock_Destroy();
+    UNITY_EXEC_TIME_STOP();
+    UnityConcludeTest();
+}
+
+/*=======MAIN=====*/
+int main(void)
+{
+  UnityBegin("test_LoginCustomer.c");
+  run_test(test_checkLogin, "test_checkLogin", 5);
+
+  return UnityEnd();
+}
diff --git a/tests/build/test/runners/test_StringManipulation_runner.c b/tests/build/test/runners/test_StringManipulation_runner.c
new file mode 100644
index 0000000..8c93227
--- /dev/null
+++ b/tests/build/test/runners/test_StringManipulation_runner.c
@@ -0,0 +1,89 @@
+/* AUTOGENERATED FILE. DO NOT EDIT. */
+
+/*=======Automagically Detected Files To Include=====*/
+#include "unity.h"
+
+int GlobalExpectCount;
+int GlobalVerifyOrder;
+char* GlobalOrderError;
+
+/*=======External Functions This Runner Calls=====*/
+extern void setUp(void);
+extern void tearDown(void);
+extern void test_to_string();
+extern void test_generateCheckString();
+
+
+/*=======Mock Management=====*/
+static void CMock_Init(void)
+{
+  GlobalExpectCount = 0;
+  GlobalVerifyOrder = 0;
+  GlobalOrderError = NULL;
+}
+static void CMock_Verify(void)
+{
+}
+static void CMock_Destroy(void)
+{
+}
+
+/*=======Setup (stub)=====*/
+void setUp(void) {}
+
+/*=======Teardown (stub)=====*/
+void tearDown(void) {}
+
+/*=======Test Reset Options=====*/
+void resetTest(void);
+void resetTest(void)
+{
+  tearDown();
+  CMock_Verify();
+  CMock_Destroy();
+  CMock_Init();
+  setUp();
+}
+void verifyTest(void);
+void verifyTest(void)
+{
+  CMock_Verify();
+}
+
+/*=======Test Runner Used To Run Each Test=====*/
+static void run_test(UnityTestFunction func, const char* name, UNITY_LINE_TYPE line_num)
+{
+    Unity.CurrentTestName = name;
+    Unity.CurrentTestLineNumber = line_num;
+#ifdef UNITY_USE_COMMAND_LINE_ARGS
+    if (!UnityTestMatches())
+        return;
+#endif
+    Unity.NumberOfTests++;
+    UNITY_CLR_DETAILS();
+    UNITY_EXEC_TIME_START();
+    CMock_Init();
+    if (TEST_PROTECT())
+    {
+        setUp();
+        func();
+    }
+    if (TEST_PROTECT())
+    {
+        tearDown();
+        CMock_Verify();
+    }
+    CMock_Destroy();
+    UNITY_EXEC_TIME_STOP();
+    UnityConcludeTest();
+}
+
+/*=======MAIN=====*/
+int main(void)
+{
+  UnityBegin("test_StringManipulation.c");
+  run_test(test_to_string, "test_to_string", 6);
+  run_test(test_generateCheckString, "test_generateCheckString", 38);
+
+  return UnityEnd();
+}
diff --git a/tests/project.yml b/tests/project.yml
new file mode 100644
index 0000000..7245e5e
--- /dev/null
+++ b/tests/project.yml
@@ -0,0 +1,101 @@
+---
+
+# Notes:
+# Sample project C code is not presently written to produce a release artifact.
+# As such, release build options are disabled.
+# This sample, therefore, only demonstrates running a collection of unit tests.
+
+:project:
+  :use_exceptions: FALSE
+  :use_test_preprocessor: TRUE
+  :use_auxiliary_dependencies: TRUE
+  :build_root: build
+#  :release_build: TRUE
+  :test_file_prefix: test_
+  :which_ceedling: gem
+  :ceedling_version: 0.31.1
+  :default_tasks:
+    - test:all
+
+#:test_build:
+#  :use_assembly: TRUE
+
+#:release_build:
+#  :output: MyApp.out
+#  :use_assembly: FALSE
+
+:environment:
+
+:extension:
+  :executable: .out
+
+:paths:
+  :test:
+    - +:test/**
+    - -:test/support
+  :source:
+    - /home/julius/Documents/Studium/Informatik/1. Semester/ProgMeth/Bankmanagement/bankmanagement-system/src/**
+  :support:
+    - test/support
+  :libraries: []
+
+:defines:
+  # in order to add common defines:
+  #  1) remove the trailing [] from the :common: section
+  #  2) add entries to the :common: section (e.g. :test: has TEST defined)
+  :common: &common_defines []
+  :test:
+    - *common_defines
+    - TEST
+  :test_preprocess:
+    - *common_defines
+    - TEST
+
+:cmock:
+  :mock_prefix: mock_
+  :when_no_prototypes: :warn
+  :enforce_strict_ordering: TRUE
+  :plugins:
+    - :ignore
+    - :callback
+  :treat_as:
+    uint8:    HEX8
+    uint16:   HEX16
+    uint32:   UINT32
+    int8:     INT8
+    bool:     UINT8
+
+# Add -gcov to the plugins list to make sure of the gcov plugin
+# You will need to have gcov and gcovr both installed to make it work.
+# For more information on these options, see docs in plugins/gcov
+:gcov:
+  :reports:
+    - HtmlDetailed
+  :gcovr:
+    :html_medium_threshold: 75
+    :html_high_threshold: 90
+
+#:tools:
+# Ceedling defaults to using gcc for compiling, linking, etc.
+# As [:tools] is blank, gcc will be used (so long as it's in your system path)
+# See documentation to configure a given toolchain for use
+
+# LIBRARIES
+# These libraries are automatically injected into the build process. Those specified as
+# common will be used in all types of builds. Otherwise, libraries can be injected in just
+# tests or releases. These options are MERGED with the options in supplemental yaml files.
+:libraries:
+  :placement: :end
+  :flag: "-l${1}"
+  :path_flag: "-L ${1}"
+  :system: []    # for example, you might list 'm' to grab the math library
+  :test: []
+  :release: []
+
+:plugins:
+  :load_paths:
+    - "#{Ceedling.load_path}"
+  :enabled:
+    - stdout_pretty_tests_report
+    - module_generator
+...
diff --git a/tests/test/support/.gitkeep b/tests/test/support/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test/test_LoginCustomer.c b/tests/test/test_LoginCustomer.c
new file mode 100644
index 0000000..610a847
--- /dev/null
+++ b/tests/test/test_LoginCustomer.c
@@ -0,0 +1,21 @@
+#include <unity.h>
+#include "LoginCustomer.h"
+void setUp(){};
+void tearDown(){};
+void test_checkLogin()
+{
+	/*arrange*/
+	bool expected_test_values_compute_to_true[] = {4==4,true==true, 1==1, false==false, 'z'=='z', '='=='=',0x1A==0x1A};
+	int length_1 = sizeof(expected_test_values_compute_to_true)/sizeof(bool);
+
+	bool expected_test_values_compute_to_false[] = {4!=4,true==false,1==0,false==true,'z'=='x','!'==')',0x1A==0x2B};
+	int length_2 = sizeof(expected_test_values_compute_to_false)/sizeof(bool);
+	
+	/*act and assertions*/
+	for(int i=0;i<7;++i) {
+		TEST_ASSERT_TRUE(checkLogin(expected_test_values_compute_to_true[i]));
+	}	
+	for(int i=0;i<7;++i){
+		TEST_ASSERT_FALSE(checkLogin(expected_test_values_compute_to_false[i]));
+	}
+}
diff --git a/tests/test/test_StringManipulation.c b/tests/test/test_StringManipulation.c
new file mode 100644
index 0000000..accd414
--- /dev/null
+++ b/tests/test/test_StringManipulation.c
@@ -0,0 +1,83 @@
+#include "unity.h"
+#include "StringManipulation.h"
+#include <time.h>
+#include <string.h>
+
+void test_to_string() 
+{
+	/*initializing test values*/
+	char *result_1[] = {"0","1","2","3","4","5","6","7","8","9","10"};
+	char *result_2[] = {"500","502","504","506","508","510","512","514","516","518"};
+	char *result_3[] = {"1000","2000","3000","4000","5000","6000","7000","8000","9000","10000"};
+	char *result_4[] = {"9999","8999","7999","6999","5999","4999","3999","2999","1999","999"};
+	char *result_5[] = {"1000000","2000000","3000000","4000000","5000000","6000000","7000000",
+			    "8000000","9000000","10000000"};
+
+	for(int i=0;i<=10;++i){
+		TEST_ASSERT_EQUAL_STRING(result_1[i],to_string(i));
+	}	
+	
+	for(int i=0, j=500;i<10;++i,j+=2){
+		TEST_ASSERT_EQUAL_STRING(result_2[i],to_string(j));
+	}
+
+	for(int i=0, j=1000;i<10;++i,j+=1000){
+		TEST_ASSERT_EQUAL_STRING(result_3[i],to_string(j));	
+	}
+	
+	for(int i=0, j=9999;i<10;++i,j-=1000){
+		TEST_ASSERT_EQUAL_STRING(result_4[i], to_string(j));
+	}
+	for(int i=0, j=1000000;i<10;++i,j+=1000000){
+		TEST_ASSERT_EQUAL_STRING(result_5[i],to_string(j));
+	}
+
+}
+
+
+void test_generateCheckString() 
+{
+	/*test block 1*/
+	int numbers_1[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25};
+	char *strings_1[] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
+	char *result_1[] = {"0=a","1=b","2=c","3=d","4=e","5=f","6=g","7=h","8=i","9=j","10=k","11=l","12=m","13=n","14=o","15=p","16=q","17=r",                            "18=s","19=t","20=u","21=v","22=w","23=x","24=y","25=z"};
+	for(int i=0;i<26;++i){
+		TEST_ASSERT_EQUAL_STRING(result_1[i],generateCheckString(numbers_1[i],*(strings_1+i)));
+	}
+	/*test block 2*/
+	int numbers_2[] = {0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025};
+	char *strings_2[] = {"z","zy","zyx","zyxw","zyxwv","zyxwvu","zyxwvut","zyxwvuts","zyxwvutsr","zyxwvutsrq","zyxwvutsrqp",
+			     "zyxwvutsrqpo","zyxwvutsrqpon","zyxwvutsrqponm","zyxwvutsrqponml","zyxwvutsrqponmlk",
+			     "zyxwvutsrqponmlkj","zyxwvutsrqponmlkji","zyxwvutsrqponmlkjih","zyxwvutsrqponmlkjihg","zyxwvutsrqponmlkjihgf",
+			      "zyxwvutsrqponmlkjihgfe","zyxwvutsrqponmlkjihgfed","zyxwvutsrqponmlkjihgfedc","zyxwvutsrqponmlkjihgfedcb",
+			      "zyxwvutsrqponmlkjihgfedcba"};
+	char *result_2[] = {"0=z","1=zy","1=zyx","2=zyxw","3=zyxwv","5=zyxwvu","8=zyxwvut","13=zyxwvuts","21=zyxwvutsr","34=zyxwvutsrq",
+	                    "55=zyxwvutsrqp","89=zyxwvutsrqpo","144=zyxwvutsrqpon","233=zyxwvutsrqponm","377=zyxwvutsrqponml",
+			    "610=zyxwvutsrqponmlk","987=zyxwvutsrqponmlkj","1597=zyxwvutsrqponmlkji","2584=zyxwvutsrqponmlkjih",
+			    "4181=zyxwvutsrqponmlkjihg","6765=zyxwvutsrqponmlkjihgf","10946=zyxwvutsrqponmlkjihgfe",
+			    "17711=zyxwvutsrqponmlkjihgfed","28657=zyxwvutsrqponmlkjihgfedc","46368=zyxwvutsrqponmlkjihgfedcb",
+			    "75025=zyxwvutsrqponmlkjihgfedcba"};
+	for(int i=0;i<26;++i){
+		TEST_ASSERT_EQUAL_STRING(result_2[i],generateCheckString(numbers_2[i],*(strings_2+i)));	
+	}
+	/*test block 3*/
+	srand(time(0));
+	int random_number=0;
+	char *random_numbers_strings[20];
+	int random_numbers[20];
+	for(int i=0;i<20;++i){
+		random_number = (rand() % 100) + 1;
+		random_numbers_strings[i] = to_string(random_number);
+		random_numbers[i] = random_number;
+	}
+	char *strings_3[] = {"tree","plant","tea","programming","assembler","unix","BSD","snow","mountain","table","wood","forest", "calculator","book","light","keyboard","old","paper","pencil","voltage"};
+	char *result_3[20];
+	for(int i=0;i<20;++i){
+		random_numbers_strings[i] = strcat(random_numbers_strings[i],"=");
+		result_3[i] = strcat(random_numbers_strings[i],strings_3[i]);
+		printf("%s\n",result_3[i]);
+	}
+	for(int i=0;i<20;++i){
+		TEST_ASSERT_EQUAL_STRING(result_3[i],generateCheckString(random_numbers[i],strings_3[i]));
+	}
+}