diff --git a/build/test/cache/test_Vsubstract2.c b/build/test/cache/test_Vsubstract2.c
new file mode 100644
index 0000000..6b5c8cb
--- /dev/null
+++ b/build/test/cache/test_Vsubstract2.c
@@ -0,0 +1,39 @@
+#include "src/funktion.h"
+#include "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+void setUp(void)
+
+{
+
+}
+
+
+
+void tearDown(void)
+
+{
+
+}
+
+
+
+void test_Vsubstract_NeedToImplement(void)
+
+{
+
+    double x2 = 5;
+
+    double z2 = 3;
+
+    double exp = Vsubstract2(x2,z2);
+
+    double result = 2;
+
+    UnityAssertFloatsWithin((UNITY_FLOAT)((UNITY_FLOAT)((result)) * (UNITY_FLOAT)(0.00001f)), (UNITY_FLOAT)((UNITY_FLOAT)((result))), (UNITY_FLOAT)((UNITY_FLOAT)((exp))), ((
+
+   ((void *)0)
+
+   )), (UNITY_UINT)((UNITY_UINT)(18)));
+
+}
diff --git a/build/test/dependencies/test_Vsubstract2.d b/build/test/dependencies/test_Vsubstract2.d
new file mode 100644
index 0000000..54cf92d
--- /dev/null
+++ b/build/test/dependencies/test_Vsubstract2.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_Vsubstract2.o: test/test_Vsubstract2.c \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h \
+ src/funktion.h
diff --git a/build/test/dependencies/test_Vsubstract2_runner.d b/build/test/dependencies/test_Vsubstract2_runner.d
new file mode 100644
index 0000000..700b45b
--- /dev/null
+++ b/build/test/dependencies/test_Vsubstract2_runner.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_Vsubstract2_runner.o: \
+ build/test/runners/test_Vsubstract2_runner.c \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h
diff --git a/build/test/out/c/funktion.o b/build/test/out/c/funktion.o
index 5d1fcaf..897e2a4 100644
Binary files a/build/test/out/c/funktion.o and b/build/test/out/c/funktion.o differ
diff --git a/build/test/out/c/test_Vsubstract2.o b/build/test/out/c/test_Vsubstract2.o
new file mode 100644
index 0000000..9397fae
Binary files /dev/null and b/build/test/out/c/test_Vsubstract2.o differ
diff --git a/build/test/out/c/test_Vsubstract2_runner.o b/build/test/out/c/test_Vsubstract2_runner.o
new file mode 100644
index 0000000..8550544
Binary files /dev/null and b/build/test/out/c/test_Vsubstract2_runner.o differ
diff --git a/build/test/out/test_Akkortrichtsatz.out b/build/test/out/test_Akkortrichtsatz.out
index 8d22803..e876962 100755
Binary files a/build/test/out/test_Akkortrichtsatz.out and b/build/test/out/test_Akkortrichtsatz.out differ
diff --git a/build/test/out/test_Anlagenabnutzungsgrad.out b/build/test/out/test_Anlagenabnutzungsgrad.out
index a255ffc..e826c57 100755
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diff --git a/build/test/out/test_Anlagenintensitaet.out b/build/test/out/test_Anlagenintensitaet.out
index 3d2e55a..b366391 100755
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diff --git a/build/test/out/test_Anlagenproduktivitaet.out b/build/test/out/test_Anlagenproduktivitaet.out
index b68831f..0cf70b3 100755
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diff --git a/build/test/out/test_Arbeitsproduktivitaet.out b/build/test/out/test_Arbeitsproduktivitaet.out
index 2317438..9d2ee82 100755
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diff --git a/build/test/out/test_Cashflow_zu_Gesamtkapital.out b/build/test/out/test_Cashflow_zu_Gesamtkapital.out
index a0bcf75..ecbfe15 100755
Binary files a/build/test/out/test_Cashflow_zu_Gesamtkapital.out and b/build/test/out/test_Cashflow_zu_Gesamtkapital.out differ
diff --git a/build/test/out/test_Dynamische_Amortisationszeit.out b/build/test/out/test_Dynamische_Amortisationszeit.out
index 6ebdaf7..15661a5 100755
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diff --git a/build/test/out/test_Effektivverzinsung.out b/build/test/out/test_Effektivverzinsung.out
index 2465820..65a58ec 100755
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diff --git a/build/test/out/test_Finanzierungsregeln.out b/build/test/out/test_Finanzierungsregeln.out
index fb86cdf..aa1d637 100755
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diff --git a/build/test/out/test_GewinnMaximum.out b/build/test/out/test_GewinnMaximum.out
index fc72696..8f55f86 100755
Binary files a/build/test/out/test_GewinnMaximum.out and b/build/test/out/test_GewinnMaximum.out differ
diff --git a/build/test/out/test_Kalkulatorische_Zinsen.out b/build/test/out/test_Kalkulatorische_Zinsen.out
index 105ecd1..f424bc4 100755
Binary files a/build/test/out/test_Kalkulatorische_Zinsen.out and b/build/test/out/test_Kalkulatorische_Zinsen.out differ
diff --git a/build/test/out/test_Kritische_Menge.out b/build/test/out/test_Kritische_Menge.out
index 4a554e9..3c6c2cd 100755
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diff --git a/build/test/out/test_Stueckzeitakkort.out b/build/test/out/test_Stueckzeitakkort.out
index 3f79758..36b28ce 100755
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diff --git a/build/test/out/test_Vadd.out b/build/test/out/test_Vadd.out
index 8ed50e3..00b5d8f 100755
Binary files a/build/test/out/test_Vadd.out and b/build/test/out/test_Vadd.out differ
diff --git a/build/test/out/test_Vaddx2.out b/build/test/out/test_Vaddx2.out
index 6f931fd..7f95022 100755
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diff --git a/build/test/out/test_Vaddx3.out b/build/test/out/test_Vaddx3.out
index 8da6c65..d36c131 100755
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diff --git a/build/test/out/test_Vlength.out b/build/test/out/test_Vlength.out
index d1c9978..6259550 100755
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diff --git a/build/test/out/test_Vshift.out b/build/test/out/test_Vshift.out
index e5c4722..9936c84 100755
Binary files a/build/test/out/test_Vshift.out and b/build/test/out/test_Vshift.out differ
diff --git a/build/test/out/test_Vsubstract.out b/build/test/out/test_Vsubstract.out
index c92dddb..8acb3b6 100755
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diff --git a/build/test/out/test_Vsubstract2.out b/build/test/out/test_Vsubstract2.out
new file mode 100755
index 0000000..e1dcb0f
Binary files /dev/null and b/build/test/out/test_Vsubstract2.out differ
diff --git a/build/test/out/test_Zeitlohn.out b/build/test/out/test_Zeitlohn.out
index c85ec20..7e550ec 100755
Binary files a/build/test/out/test_Zeitlohn.out and b/build/test/out/test_Zeitlohn.out differ
diff --git a/build/test/out/test_angebotserfolg.out b/build/test/out/test_angebotserfolg.out
index 2aa5b56..e7b4aa2 100755
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diff --git a/build/test/out/test_eigenkapital_Rentabilitaeten.out b/build/test/out/test_eigenkapital_Rentabilitaeten.out
index cd6523d..2008769 100755
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diff --git a/build/test/out/test_erloesfunktion.out b/build/test/out/test_erloesfunktion.out
index 1d3e7c1..a470454 100755
Binary files a/build/test/out/test_erloesfunktion.out and b/build/test/out/test_erloesfunktion.out differ
diff --git a/build/test/out/test_gesamtkapital_Rentabilitaeten.out b/build/test/out/test_gesamtkapital_Rentabilitaeten.out
index 4db75ff..8351a5d 100755
Binary files a/build/test/out/test_gesamtkapital_Rentabilitaeten.out and b/build/test/out/test_gesamtkapital_Rentabilitaeten.out differ
diff --git a/build/test/out/test_grenzGewinn.out b/build/test/out/test_grenzGewinn.out
index d6839b4..f0351c0 100755
Binary files a/build/test/out/test_grenzGewinn.out and b/build/test/out/test_grenzGewinn.out differ
diff --git a/build/test/out/test_marktanteil.out b/build/test/out/test_marktanteil.out
index e1341bb..874dff2 100755
Binary files a/build/test/out/test_marktanteil.out and b/build/test/out/test_marktanteil.out differ
diff --git a/build/test/out/test_trapezFlaeche.out b/build/test/out/test_trapezFlaeche.out
index d91064b..23782ad 100755
Binary files a/build/test/out/test_trapezFlaeche.out and b/build/test/out/test_trapezFlaeche.out differ
diff --git a/build/test/preprocess/files/test_Vsubstract2.c b/build/test/preprocess/files/test_Vsubstract2.c
new file mode 100644
index 0000000..6b5c8cb
--- /dev/null
+++ b/build/test/preprocess/files/test_Vsubstract2.c
@@ -0,0 +1,39 @@
+#include "src/funktion.h"
+#include "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+void setUp(void)
+
+{
+
+}
+
+
+
+void tearDown(void)
+
+{
+
+}
+
+
+
+void test_Vsubstract_NeedToImplement(void)
+
+{
+
+    double x2 = 5;
+
+    double z2 = 3;
+
+    double exp = Vsubstract2(x2,z2);
+
+    double result = 2;
+
+    UnityAssertFloatsWithin((UNITY_FLOAT)((UNITY_FLOAT)((result)) * (UNITY_FLOAT)(0.00001f)), (UNITY_FLOAT)((UNITY_FLOAT)((result))), (UNITY_FLOAT)((UNITY_FLOAT)((exp))), ((
+
+   ((void *)0)
+
+   )), (UNITY_UINT)((UNITY_UINT)(18)));
+
+}
diff --git a/build/test/preprocess/includes/test_Vsubstract2.c b/build/test/preprocess/includes/test_Vsubstract2.c
new file mode 100644
index 0000000..4e923ea
--- /dev/null
+++ b/build/test/preprocess/includes/test_Vsubstract2.c
@@ -0,0 +1,3 @@
+---
+- "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+- src/funktion.h
diff --git a/build/test/results/test_Akkortrichtsatz.pass b/build/test/results/test_Akkortrichtsatz.pass
index 112eb87..5480bf5 100644
--- a/build/test/results/test_Akkortrichtsatz.pass
+++ b/build/test/results/test_Akkortrichtsatz.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 552.000000
-:time: 0.0016864169997461431
+:time: 0.001553450999836059
diff --git a/build/test/results/test_Anlagenabnutzungsgrad.pass b/build/test/results/test_Anlagenabnutzungsgrad.pass
index 34e367e..d5293af 100644
--- a/build/test/results/test_Anlagenabnutzungsgrad.pass
+++ b/build/test/results/test_Anlagenabnutzungsgrad.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 60.000000
-:time: 0.004020854999907897
+:time: 0.0011911289998352004
diff --git a/build/test/results/test_Anlagenintensitaet.pass b/build/test/results/test_Anlagenintensitaet.pass
index b8bddd4..70f7e69 100644
--- a/build/test/results/test_Anlagenintensitaet.pass
+++ b/build/test/results/test_Anlagenintensitaet.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 4878.048780
-:time: 0.005722833999698196
+:time: 0.0030370429999493354
diff --git a/build/test/results/test_Anlagenproduktivitaet.pass b/build/test/results/test_Anlagenproduktivitaet.pass
index ce13d9f..6c24e4a 100644
--- a/build/test/results/test_Anlagenproduktivitaet.pass
+++ b/build/test/results/test_Anlagenproduktivitaet.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 18.203304
-:time: 0.0022210460001588217
+:time: 0.001244246000169369
diff --git a/build/test/results/test_Arbeitsproduktivitaet.pass b/build/test/results/test_Arbeitsproduktivitaet.pass
index 3b9044a..bfe2912 100644
--- a/build/test/results/test_Arbeitsproduktivitaet.pass
+++ b/build/test/results/test_Arbeitsproduktivitaet.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 60.000000
-:time: 0.004405602000133513
+:time: 0.002165006999803154
diff --git a/build/test/results/test_Cashflow_zu_Gesamtkapital.pass b/build/test/results/test_Cashflow_zu_Gesamtkapital.pass
index d6c0b8e..0666489 100644
--- a/build/test/results/test_Cashflow_zu_Gesamtkapital.pass
+++ b/build/test/results/test_Cashflow_zu_Gesamtkapital.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 0.158038
-:time: 0.0012864300001638185
+:time: 0.0013031529997533653
diff --git a/build/test/results/test_Dynamische_Amortisationszeit.pass b/build/test/results/test_Dynamische_Amortisationszeit.pass
index bd43a52..97404bf 100644
--- a/build/test/results/test_Dynamische_Amortisationszeit.pass
+++ b/build/test/results/test_Dynamische_Amortisationszeit.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 189.421906
-:time: 0.0014093830000092566
+:time: 0.0014209139999366016
diff --git a/build/test/results/test_Effektivverzinsung.pass b/build/test/results/test_Effektivverzinsung.pass
index 360f77a..6734672 100644
--- a/build/test/results/test_Effektivverzinsung.pass
+++ b/build/test/results/test_Effektivverzinsung.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 16.034390
-:time: 0.004355472999577614
+:time: 0.0019752680000237888
diff --git a/build/test/results/test_Finanzierungsregeln.pass b/build/test/results/test_Finanzierungsregeln.pass
index 719f01e..915fcaf 100644
--- a/build/test/results/test_Finanzierungsregeln.pass
+++ b/build/test/results/test_Finanzierungsregeln.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 0.051041
-:time: 0.001471586999741703
+:time: 0.003439258000071277
diff --git a/build/test/results/test_GewinnMaximum.pass b/build/test/results/test_GewinnMaximum.pass
index bb3f9db..8842465 100644
--- a/build/test/results/test_GewinnMaximum.pass
+++ b/build/test/results/test_GewinnMaximum.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 251.000000
-:time: 0.0016585919997851306
+:time: 0.001230690999818762
diff --git a/build/test/results/test_Kalkulatorische_Zinsen.pass b/build/test/results/test_Kalkulatorische_Zinsen.pass
index d86343d..69655a2 100644
--- a/build/test/results/test_Kalkulatorische_Zinsen.pass
+++ b/build/test/results/test_Kalkulatorische_Zinsen.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 1.440000
-:time: 0.001361982000162243
+:time: 0.002091981999910786
diff --git a/build/test/results/test_Kritische_Menge.pass b/build/test/results/test_Kritische_Menge.pass
index 1767e0d..06d226f 100644
--- a/build/test/results/test_Kritische_Menge.pass
+++ b/build/test/results/test_Kritische_Menge.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss -12.096026
-:time: 0.002651170999797614
+:time: 0.0012331719999565394
diff --git a/build/test/results/test_Stueckzeitakkort.pass b/build/test/results/test_Stueckzeitakkort.pass
index bab8447..83df5f7 100644
--- a/build/test/results/test_Stueckzeitakkort.pass
+++ b/build/test/results/test_Stueckzeitakkort.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - '96600.000000'
-:time: 0.0012477529999159742
+:time: 0.0031988880000426434
diff --git a/build/test/results/test_Vadd.pass b/build/test/results/test_Vadd.pass
index ec77503..8e6816d 100644
--- a/build/test/results/test_Vadd.pass
+++ b/build/test/results/test_Vadd.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.0012125690000175382
+:time: 0.002393594999830384
diff --git a/build/test/results/test_Vaddx2.pass b/build/test/results/test_Vaddx2.pass
index ee94b25..4e9bfdb 100644
--- a/build/test/results/test_Vaddx2.pass
+++ b/build/test/results/test_Vaddx2.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.0012262979998922674
+:time: 0.0012541690002763062
diff --git a/build/test/results/test_Vaddx3.pass b/build/test/results/test_Vaddx3.pass
index 1fec9e3..f144c2c 100644
--- a/build/test/results/test_Vaddx3.pass
+++ b/build/test/results/test_Vaddx3.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.0015179400002125476
+:time: 0.0011681860000862798
diff --git a/build/test/results/test_Vlength.pass b/build/test/results/test_Vlength.pass
index 1a94650..92d44f8 100644
--- a/build/test/results/test_Vlength.pass
+++ b/build/test/results/test_Vlength.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.0015362989997811383
+:time: 0.003373739999915415
diff --git a/build/test/results/test_Vshift.pass b/build/test/results/test_Vshift.pass
index c2cbb6c..30c3113 100644
--- a/build/test/results/test_Vshift.pass
+++ b/build/test/results/test_Vshift.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.001439365999885922
+:time: 0.0017755750000105763
diff --git a/build/test/results/test_Vsubstract.pass b/build/test/results/test_Vsubstract.pass
index 431af57..deb7869 100644
--- a/build/test/results/test_Vsubstract.pass
+++ b/build/test/results/test_Vsubstract.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.0018189219999840134
+:time: 0.004942974999721628
diff --git a/build/test/results/test_Vsubstract2.pass b/build/test/results/test_Vsubstract2.pass
new file mode 100644
index 0000000..7bb7469
--- /dev/null
+++ b/build/test/results/test_Vsubstract2.pass
@@ -0,0 +1,18 @@
+---
+:source:
+  :path: test
+  :file: test_Vsubstract2.c
+:successes:
+- :test: test_Vsubstract_NeedToImplement
+  :line: 12
+  :message: ''
+  :unity_test_time: 0
+:failures: []
+:ignores: []
+:counts:
+  :total: 1
+  :passed: 1
+  :failed: 0
+  :ignored: 0
+:stdout: []
+:time: 0.0012138070001128654
diff --git a/build/test/results/test_Zeitlohn.pass b/build/test/results/test_Zeitlohn.pass
index b7984e7..0fae913 100644
--- a/build/test/results/test_Zeitlohn.pass
+++ b/build/test/results/test_Zeitlohn.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 3450.000000
-:time: 0.0013900349999858008
+:time: 0.001338398000370944
diff --git a/build/test/results/test_angebotserfolg.pass b/build/test/results/test_angebotserfolg.pass
index 777353c..9f5725f 100644
--- a/build/test/results/test_angebotserfolg.pass
+++ b/build/test/results/test_angebotserfolg.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 225.000000
-:time: 0.0017410059999747318
+:time: 0.001177876999918226
diff --git a/build/test/results/test_eigenkapital_Rentabilitaeten.pass b/build/test/results/test_eigenkapital_Rentabilitaeten.pass
index 3dc19f6..e8f7658 100644
--- a/build/test/results/test_eigenkapital_Rentabilitaeten.pass
+++ b/build/test/results/test_eigenkapital_Rentabilitaeten.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 62.500000
-:time: 0.005574293999870861
+:time: 0.0017214429999512504
diff --git a/build/test/results/test_erloesfunktion.pass b/build/test/results/test_erloesfunktion.pass
index efc52bc..9ffc480 100644
--- a/build/test/results/test_erloesfunktion.pass
+++ b/build/test/results/test_erloesfunktion.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 4000.000000
-:time: 0.0013607910000246193
+:time: 0.001270631999886973
diff --git a/build/test/results/test_gesamtkapital_Rentabilitaeten.pass b/build/test/results/test_gesamtkapital_Rentabilitaeten.pass
index 61abbea..557b81d 100644
--- a/build/test/results/test_gesamtkapital_Rentabilitaeten.pass
+++ b/build/test/results/test_gesamtkapital_Rentabilitaeten.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 27.136929
-:time: 0.0017860620000647032
+:time: 0.0013129799999660463
diff --git a/build/test/results/test_grenzGewinn.pass b/build/test/results/test_grenzGewinn.pass
index eab76fe..bd1167a 100644
--- a/build/test/results/test_grenzGewinn.pass
+++ b/build/test/results/test_grenzGewinn.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 1141.000000
-:time: 0.0013039809996371332
+:time: 0.0012804430002688605
diff --git a/build/test/results/test_marktanteil.pass b/build/test/results/test_marktanteil.pass
index b311cc0..63e3fa2 100644
--- a/build/test/results/test_marktanteil.pass
+++ b/build/test/results/test_marktanteil.pass
@@ -16,4 +16,4 @@
   :ignored: 0
 :stdout:
 - Testergebniss 21.739130
-:time: 0.0023114799996619695
+:time: 0.0013836640000590705
diff --git a/build/test/results/test_trapezFlaeche.pass b/build/test/results/test_trapezFlaeche.pass
index a9555c2..ada4848 100644
--- a/build/test/results/test_trapezFlaeche.pass
+++ b/build/test/results/test_trapezFlaeche.pass
@@ -17,4 +17,4 @@
 :stdout:
 - 'Flaeche vom Trapez beträgt: 21.000000'
 - Testergebniss 21.000000
-:time: 0.001294939999752387
+:time: 0.0012923610001962516
diff --git a/build/test/runners/test_Vsubstract2_runner.c b/build/test/runners/test_Vsubstract2_runner.c
new file mode 100644
index 0000000..ba4a86e
--- /dev/null
+++ b/build/test/runners/test_Vsubstract2_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_Vsubstract_NeedToImplement(void);
+
+
+/*=======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_Vsubstract2.c");
+  run_test(test_Vsubstract_NeedToImplement, "test_Vsubstract_NeedToImplement", 12);
+
+  return UnityEnd();
+}
diff --git a/test/test_Vsubstract2.c b/test/test_Vsubstract2.c
new file mode 100644
index 0000000..580bf90
--- /dev/null
+++ b/test/test_Vsubstract2.c
@@ -0,0 +1,19 @@
+#include "unity.h"
+#include "funktion.h"
+
+void setUp(void)
+{
+}
+
+void tearDown(void)
+{
+}
+
+void test_Vsubstract_NeedToImplement(void)
+{
+    double x2 = 5;
+    double z2 = 3;
+    double exp = Vsubstract2(x2,z2);
+    double result = 2;
+    TEST_ASSERT_EQUAL_FLOAT(result,exp);
+}
\ No newline at end of file