diff --git a/examples/example_4/test/TestProductionCode.c b/examples/example_4/test/TestProductionCode.c
index 404c371..b6c00ae 100644
--- a/examples/example_4/test/TestProductionCode.c
+++ b/examples/example_4/test/TestProductionCode.c
@@ -17,6 +17,12 @@ void tearDown(void)
 {
 }
 
+void test_FindFunction_WhichIsBroken_ShouldReturnZeroIfItemIsNotInList_WhichWorksEvenInOurBrokenCode(void);
+void test_FindFunction_WhichIsBroken_ShouldReturnTheIndexForItemsInList_WhichWillFailBecauseOurFunctionUnderTestIsBroken(void);
+void test_FunctionWhichReturnsLocalVariable_ShouldReturnTheCurrentCounterValue(void);
+void test_FunctionWhichReturnsLocalVariable_ShouldReturnTheCurrentCounterValueAgain(void);
+void test_FunctionWhichReturnsLocalVariable_ShouldReturnCurrentCounter_ButFailsBecauseThisTestIsActuallyFlawed(void);
+
 void test_FindFunction_WhichIsBroken_ShouldReturnZeroIfItemIsNotInList_WhichWorksEvenInOurBrokenCode(void)
 {
   /* All of these should pass */
diff --git a/examples/example_4/test/TestProductionCode2.c b/examples/example_4/test/TestProductionCode2.c
index 7d940c1..2578ca9 100644
--- a/examples/example_4/test/TestProductionCode2.c
+++ b/examples/example_4/test/TestProductionCode2.c
@@ -15,6 +15,10 @@ void tearDown(void)
 {
 }
 
+void test_IgnoredTest(void);
+void test_AnotherIgnoredTest(void);
+void test_ThisFunctionHasNotBeenTested_NeedsToBeImplemented(void);
+
 void test_IgnoredTest(void)
 {
     TEST_IGNORE_MESSAGE("This Test Was Ignored On Purpose");