Changed AddComplexNumberTest to use hamcrest assertThat instead of assertTrue

pom.xml

@@ -24,6 +24,12 @@
       <version>4.11</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.hamcrest</groupId>
+      <artifactId>hamcrest-junit</artifactId>
+      <version>2.0.0.0</version>
+      <scope>test</scope>
+    </dependency>
     <!-- https://mvnrepository.com/artifact/org.mockito/mockito-core -->
     <dependency>
       <groupId>org.mockito</groupId>

src/main/java/com/ugsbo/complexnumcalc/ComplexNumber.java

@@ -48,9 +48,11 @@ public class ComplexNumber {
      * @param complexNumber The number wich gets compared with this Instance
      * @return True if the complex Numbers are Equal
      */
-    public boolean equals(ComplexNumber complexNumber) {
-        if (this.realPart.equals(complexNumber.realPart) && this.imaginaryPart.equals(complexNumber.imaginaryPart)) {
-            return true;
+    @Override
+    public boolean equals(Object complexNumber) {
+        if (complexNumber instanceof ComplexNumber){
+            ComplexNumber that = (ComplexNumber) complexNumber;
+            return this.realPart.equals(that.realPart) && this.imaginaryPart.equals(that.imaginaryPart);
         } else {
             return false;
         } 

src/test/java/com/ugsbo/complexnumcalc/AddComplexNumbersTest.java

@@ -1,6 +1,7 @@
 package com.ugsbo.complexnumcalc;
 
-import static org.junit.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat; 
+import static org.hamcrest.Matchers.*;
 
 import org.junit.Test;
 
@@ -14,7 +15,7 @@ public class AddComplexNumbersTest {
 
         ComplexNumber sum = firstAddend.add(secoundAddend);
 
-        assertTrue("Dont sum to the sum", sum.equals(expected));
+        assertThat("Dont sum to the sum", sum, equalTo(expected));
     }
 
     @Test
@@ -25,6 +26,6 @@ public class AddComplexNumbersTest {
 
         ComplexNumber sum = firstAddend.add(secoundAddend);
 
-        assertTrue("Dont sum to the sum", sum.equals(expected));
+        assertThat("Dont sum to the sum", sum, equalTo(expected));
     }
 }

src/test/java/com/ugsbo/complexnumcalc/conjugationOfComplexNumbersTest.java

@@ -1,6 +1,7 @@
 package com.ugsbo.complexnumcalc;
 
-import static org.junit.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat; 
+import static org.hamcrest.Matchers.*;
 
 import org.junit.Test;
 
@@ -15,8 +16,18 @@ public class conjugationOfComplexNumbersTest {
         
         ComplexNumber actual = complexNumber.conjugationOf();
 
-        assertTrue("TheConjugatedComplexNumberOfAComplexNumberWithOnlyARealPartIsTheRealPart", expected.equals(actual));
-        //TODO change equals to equalTo
-        //assertThat("TheConjugatedComplexNumberOfAComplexNumberWithOnlyARealPartIsTheRealPart", expected, equalsTo(actual));
+        assertThat("The conjugated complex Number of a complex number with only a real part is the real part", expected, equalTo(actual));
+    }
+
+    @Test
+    public void TheConjugatedComplexNumberOfAComplexNumberShouldBeTheComplexNumberWithSwapedSignImaginaryPart_ButItIsNot() { 
+        Double realPart = Double.valueOf(4);
+        Double imaginaryPart = Double.valueOf(5);
+        ComplexNumber complexNumber = new ComplexNumber(realPart, imaginaryPart);
+        ComplexNumber expected = new ComplexNumber(realPart, -imaginaryPart);
+        
+        ComplexNumber actual = complexNumber.conjugationOf();
+
+        assertThat("The conjugated complex number of a complex number is the complex number with swaped sign in the imaginary part", expected, equalTo(actual));
     }
 }