100% code coverage for Unity project

 Add test for failure count and UnityEnd return value
 Cover printing escape codes with length parameter
 Full statement coverage

test/tests/testunity.c

@@ -1370,7 +1370,7 @@ void testNotEqualString4(void)
 void testNotEqualStringLen4(void)
 {
     EXPECT_ABORT_BEGIN
-    TEST_ASSERT_EQUAL_STRING_LEN("bar\r", "bar\n", 4);
+    TEST_ASSERT_EQUAL_STRING_LEN("\r\x16", "bar\n", 4);
     VERIFY_FAILS_END
 }
 
@@ -2260,6 +2260,19 @@ int putcharSpy(int c)
     return c;
 }
 
+void testFailureCountIncrementsAndIsReturnedAtEnd(void)
+{
+    Unity.CurrentTestFailed = 1;
+    startPutcharSpy(); // Suppress output
+    UnityConcludeTest();
+    TEST_ASSERT_EQUAL(1, Unity.TestFailures);
+
+    int failures = UnityEnd();
+    Unity.TestFailures--;
+    endPutcharSpy();
+    TEST_ASSERT_EQUAL(1, failures);
+}
+
 #define TEST_ASSERT_EQUAL_PRINT_NUMBERS(expected, actual) {             \
         startPutcharSpy(); UnityPrintNumber((actual)); endPutcharSpy(); \
         TEST_ASSERT_EQUAL_STRING((expected), getBufferPutcharSpy());    \