1 #include "ProductionCode.h"
2 #include "unity.h"
3 #include "unity_fixture.h"
4
5 TEST_GROUP(ProductionCode);
6
7 //sometimes you may want to get at local data in a module.
8 //for example: If you plan to pass by reference, this could be useful
9 //however, it should often be avoided
10 extern int Counter;
11
TEST_SETUP(ProductionCode)12 TEST_SETUP(ProductionCode)
13 {
14 //This is run before EACH TEST
15 Counter = 0x5a5a;
16 }
17
TEST_TEAR_DOWN(ProductionCode)18 TEST_TEAR_DOWN(ProductionCode)
19 {
20 }
21
TEST(ProductionCode,FindFunction_WhichIsBroken_ShouldReturnZeroIfItemIsNotInList_WhichWorksEvenInOurBrokenCode)22 TEST(ProductionCode, FindFunction_WhichIsBroken_ShouldReturnZeroIfItemIsNotInList_WhichWorksEvenInOurBrokenCode)
23 {
24 //All of these should pass
25 TEST_ASSERT_EQUAL(0, FindFunction_WhichIsBroken(78));
26 TEST_ASSERT_EQUAL(0, FindFunction_WhichIsBroken(1));
27 TEST_ASSERT_EQUAL(0, FindFunction_WhichIsBroken(33));
28 TEST_ASSERT_EQUAL(0, FindFunction_WhichIsBroken(999));
29 TEST_ASSERT_EQUAL(0, FindFunction_WhichIsBroken(-1));
30 }
31
TEST(ProductionCode,FindFunction_WhichIsBroken_ShouldReturnTheIndexForItemsInList_WhichWillFailBecauseOurFunctionUnderTestIsBroken)32 TEST(ProductionCode, FindFunction_WhichIsBroken_ShouldReturnTheIndexForItemsInList_WhichWillFailBecauseOurFunctionUnderTestIsBroken)
33 {
34 // You should see this line fail in your test summary
35 TEST_ASSERT_EQUAL(1, FindFunction_WhichIsBroken(34));
36
37 // Notice the rest of these didn't get a chance to run because the line above failed.
38 // Unit tests abort each test function on the first sign of trouble.
39 // Then NEXT test function runs as normal.
40 TEST_ASSERT_EQUAL(8, FindFunction_WhichIsBroken(8888));
41 }
42
TEST(ProductionCode,FunctionWhichReturnsLocalVariable_ShouldReturnTheCurrentCounterValue)43 TEST(ProductionCode, FunctionWhichReturnsLocalVariable_ShouldReturnTheCurrentCounterValue)
44 {
45 //This should be true because setUp set this up for us before this test
46 TEST_ASSERT_EQUAL_HEX(0x5a5a, FunctionWhichReturnsLocalVariable());
47
48 //This should be true because we can still change our answer
49 Counter = 0x1234;
50 TEST_ASSERT_EQUAL_HEX(0x1234, FunctionWhichReturnsLocalVariable());
51 }
52
TEST(ProductionCode,FunctionWhichReturnsLocalVariable_ShouldReturnTheCurrentCounterValueAgain)53 TEST(ProductionCode, FunctionWhichReturnsLocalVariable_ShouldReturnTheCurrentCounterValueAgain)
54 {
55 //This should be true again because setup was rerun before this test (and after we changed it to 0x1234)
56 TEST_ASSERT_EQUAL_HEX(0x5a5a, FunctionWhichReturnsLocalVariable());
57 }
58
TEST(ProductionCode,FunctionWhichReturnsLocalVariable_ShouldReturnCurrentCounter_ButFailsBecauseThisTestIsActuallyFlawed)59 TEST(ProductionCode, FunctionWhichReturnsLocalVariable_ShouldReturnCurrentCounter_ButFailsBecauseThisTestIsActuallyFlawed)
60 {
61 //Sometimes you get the test wrong. When that happens, you get a failure too... and a quick look should tell
62 // you what actually happened...which in this case was a failure to setup the initial condition.
63 TEST_ASSERT_EQUAL_HEX(0x1234, FunctionWhichReturnsLocalVariable());
64 }
65