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Custom return value delegate sequences for variadic functions (#63)

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* Custom return value delegate sequences for variadic functions
* Added unit tests for variadic functions custom return value delegate sequences
* Fixes in code style
* Variadic functions custom delegates also tested in C++
* Fixed some compilation warnings
* Added test for variadic function custom delegates sequence reset
* Updated documentation with variadic functions custom delegate sequences
* Update README.md
* Minor style changes.

Thank you very much @oliviera9!
This commit is contained in:
Alain
2018-12-05 13:36:32 +01:00
committed by James Fraser
parent 35b26878a7
commit b76c7c7168
8 changed files with 841 additions and 86 deletions
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88
test/test_cases.include
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@@ -354,7 +354,88 @@ TEST_F(FFFTestSuite, when_value_custom_fake_called_THEN_it_returns_custom_return
ASSERT_EQ(MEANING_OF_LIFE, retval);
}
#ifndef __cplusplus
int valuefunc3var_custom_fake1(const char *str, int a, va_list vl)
{
int arg;
while ((arg = va_arg(vl, int)) != 0)
a += arg;
return a;
}
int valuefunc3var_custom_fake2(const char *str, int a, va_list vl)
{
int arg;
while ((arg = va_arg(vl, int)) != 0)
a -= arg;
return a;
}
int valuefunc3var_custom_fake3(const char *str, int a, va_list vl)
{
int arg;
while ((arg = va_arg(vl, int)) != 0)
a *= arg;
return a;
}
TEST_F(FFFTestSuite, vararg_custom_fake_sequence_not_exhausted)
{
int (*custom_fakes[])(const char *, int, va_list) = {valuefunc3var_custom_fake1,
valuefunc3var_custom_fake2,
valuefunc3var_custom_fake3};
SET_CUSTOM_FAKE_SEQ(valuefunc3var, custom_fakes, 3);
int a = 1;
ASSERT_EQ(valuefunc3var("a", a, 2, 3, 4, 0), 10);
ASSERT_EQ(valuefunc3var("aa", a, 2, 3, 4, 2, 0), -10);
ASSERT_EQ(valuefunc3var("aaa", a, 2, 3, 0), 6);
}
TEST_F(FFFTestSuite, vararg_custom_fake_seq_return_values_saved_in_history)
{
int (*custom_fakes[])(const char *, int, va_list) = {valuefunc3var_custom_fake1,
valuefunc3var_custom_fake2,
valuefunc3var_custom_fake3};
SET_CUSTOM_FAKE_SEQ(valuefunc3var, custom_fakes, 3);
int a = 1;
valuefunc3var("a", a, 2, 3, 4, 0);
valuefunc3var("aa", a, 2, 3, 4, 2, 0);
valuefunc3var("aaa", a, 2, 3, 0);
ASSERT_EQ(10, valuefunc3var_fake.return_val_history[0]);
ASSERT_EQ(-10, valuefunc3var_fake.return_val_history[1]);
ASSERT_EQ(6, valuefunc3var_fake.return_val_history[2]);
}
TEST_F(FFFTestSuite, vararg_custom_fake_sequence_exhausted)
{
int (*custom_fakes[])(const char *, int, va_list) = {valuefunc3var_custom_fake1,
valuefunc3var_custom_fake2,
valuefunc3var_custom_fake3};
SET_CUSTOM_FAKE_SEQ(valuefunc3var, custom_fakes, 3);
int a = 1;
ASSERT_EQ(valuefunc3var("a", a, 2, 3, 4, 0), 10);
ASSERT_EQ(valuefunc3var("aa", a, 2, 3, 4, 2, 0), -10);
ASSERT_EQ(valuefunc3var("aaa", a, 2, 3, 0), 6);
ASSERT_EQ(valuefunc3var("aaa", a, 4, 5, 1, 0), 20);
ASSERT_EQ(valuefunc3var("aaa", a, 4, 0), 4);
}
TEST_F(FFFTestSuite, vararg_custom_fake_sequence_reset)
{
int (*custom_fakes[])(const char *, int, va_list) = {valuefunc3var_custom_fake1,
valuefunc3var_custom_fake2,
valuefunc3var_custom_fake3};
SET_CUSTOM_FAKE_SEQ(valuefunc3var, custom_fakes, 3);
int a = 1;
ASSERT_EQ(valuefunc3var("a", a, 2, 3, 4, 0), 10);
ASSERT_EQ(valuefunc3var("aa", a, 2, 3, 4, 2, 0), -10);
RESET_FAKE(valuefunc3var);
ASSERT_EQ(0, valuefunc3var("b", 7, 4, 5));
valuefunc3var_fake.return_val = 1;
ASSERT_EQ(1, valuefunc3var("c", 5, 4, 4));
valuefunc3var_fake.return_val = 2;
ASSERT_EQ(2, valuefunc3var("d", 6, 3, 5));
}
TEST_F(FFFTestSuite, use_void_vararg_fake_with_different_number_of_arguments)
{
voidfunc3var("0 parameters", 0);
@@ -362,7 +443,7 @@ TEST_F(FFFTestSuite, use_void_vararg_fake_with_different_number_of_arguments)
voidfunc3var("2 parameters", 2, 10, 20);
voidfunc3var("3 parameters", 3, 10, 20, 30);
ASSERT_EQ(voidfunc3var_fake.call_count, 4);
ASSERT_EQ(voidfunc3var_fake.call_count, 4u);
char msg[] = "3 parameters";
ASSERT_EQ(strcmp(voidfunc3var_fake.arg0_val, msg), 0);
ASSERT_EQ(3, voidfunc3var_fake.arg1_val);
@@ -375,12 +456,11 @@ TEST_F(FFFTestSuite, use_value_vararg_fake_with_different_number_of_arguments)
valuefunc3var("2 parameters", 2, 10, 20);
valuefunc3var("3 parameters", 3, 10, 20, 30);
ASSERT_EQ(valuefunc3var_fake.call_count, 4);
ASSERT_EQ(valuefunc3var_fake.call_count, 4u);
char msg[] = "3 parameters";
ASSERT_EQ(strcmp(valuefunc3var_fake.arg0_val, msg), 0);
ASSERT_EQ(3, valuefunc3var_fake.arg1_val);
}
#endif /* __cplusplus */
TEST_F(FFFTestSuite, can_capture_upto_20_arguments_correctly)
{