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Unit test nullptr C-style strings

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Added unit tests for the cases of matching and serializing C-style strings (char*) that are nullptr.

(As of this revision, these new tests correctly fail, except for the test of mock::equal; fix to follow.)
This commit is contained in:
Alex Smith 2023-01-02 17:30:54 +00:00
parent 0dd0dfa15f
commit 528761b180
3 changed files with 26 additions and 1 deletions
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9
test/test_constraints.cpp
View file

@ -80,6 +80,15 @@ BOOST_AUTO_TEST_CASE(equal_constraint_deref)
}
}
BOOST_AUTO_TEST_CASE(equal_null_c_string)
{
const char* const null_str = nullptr;
BOOST_CHECK(mock::equal(null_str).c_(null_str));
BOOST_CHECK(!mock::equal(null_str).c_("non-null string"));
BOOST_CHECK(!mock::equal("non-null-string").c_(null_str));
}
BOOST_AUTO_TEST_CASE(same_constraint)
{
{

8
test/test_log.cpp
View file

@ -89,6 +89,14 @@ BOOST_AUTO_TEST_CASE(strings_are_serialized_with_double_quotes)
BOOST_CHECK_EQUAL("\"string\"", to_string(std::string("string")));
}
BOOST_AUTO_TEST_CASE(null_c_strings_are_serialized_to_nullptr)
{
const char* const null_str = nullptr;
BOOST_CHECK_EQUAL("nullptr", to_string(null_str));
// Note the lack of double quotes in the output, as opposed to when the
// string "nullptr" is serialized.
}
namespace {
struct non_serializable
{};

10
test/test_matcher.cpp
View file

@ -36,7 +36,7 @@ BOOST_AUTO_TEST_CASE(ref_to_int_and_int_can_be_compared)
namespace {
struct fixture
{
fixture() : text("same text"), actual(text.c_str())
fixture() : text("same text"), actual(text.c_str()), null_str(nullptr)
{
const char* static_string = "same text";
BOOST_REQUIRE(actual != static_string);
@ -44,6 +44,7 @@ struct fixture
}
std::string text;
const char* actual;
const char* null_str;
};
} // namespace
@ -75,6 +76,13 @@ BOOST_FIXTURE_TEST_CASE(const_char_pointer_and_std_string_can_be_compared, fixtu
BOOST_CHECK(!match(std::string("different text"), actual));
}
BOOST_FIXTURE_TEST_CASE(null_const_char_pointers_can_be_compared, fixture)
{
BOOST_CHECK(match(null_str, null_str));
BOOST_CHECK(!match(null_str, "non-null string"));
BOOST_CHECK(!match("non-null string", null_str));
}
namespace {
template<typename T>
std::string serialize(const T& t)