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test: Unit test for CResult matcher #712

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Feb 3, 2021
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test: Unit test for CResult matcher #712

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47 changes: 47 additions & 0 deletions test/unittests/test_utils_test.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -159,6 +159,53 @@ TEST(test_utils, result_value_matcher)
EXPECT_THAT(TypedExecutionResult(Value{1_u64}, ValType::i64), Not(Result(uint8_t{1})));
}

TEST(test_utils, cresult_value_matcher)
{
using testing::Not;

FizzyExecutionResult trap{true, false, FizzyValue{}};
EXPECT_THAT(trap, CTraps());
EXPECT_THAT(trap, Not(CResult()));

FizzyExecutionResult result_void{false, false, FizzyValue{}};
EXPECT_THAT(result_void, CResult());
EXPECT_THAT(result_void, Not(CTraps()));

// Each result type is checked only against values with equal type, because for other types
// CResult matcher would access non-active union members of result's value, which presents UB.

EXPECT_THAT(trap, Not(CResult(0_u32)));
EXPECT_THAT(result_void, Not(CResult(0_u32)));
FizzyValue value_i32{-1_u32};
FizzyExecutionResult result_i32{false, true, value_i32};
EXPECT_THAT(result_i32, CResult(-1_u32));
EXPECT_THAT(result_i32, Not(CResult(-2_u32)));

EXPECT_THAT(trap, Not(CResult(0_u64)));
EXPECT_THAT(result_void, Not(CResult(0_u64)));
FizzyValue value_i64;
value_i64.i64 = -1_u64;
FizzyExecutionResult result_i64{false, true, value_i64};
EXPECT_THAT(result_i64, CResult(-1_u64));
EXPECT_THAT(result_i64, Not(CResult(-2_u64)));

EXPECT_THAT(trap, Not(CResult(0.0f)));
EXPECT_THAT(result_void, Not(CResult(0.0f)));
FizzyValue value_f32;
value_f32.f32 = 1.1f;
FizzyExecutionResult result_f32{false, true, value_f32};
EXPECT_THAT(result_f32, CResult(1.1f));
EXPECT_THAT(result_f32, Not(CResult(1.0f)));

EXPECT_THAT(trap, Not(CResult(0.0)));
EXPECT_THAT(result_void, Not(CResult(0.0)));
FizzyValue value_f64;
value_f64.f64 = 2.2;
FizzyExecutionResult result_f64{false, true, value_f64};
EXPECT_THAT(result_f64, CResult(2.2));
EXPECT_THAT(result_f64, Not(CResult(2.0)));
}

TEST(test_utils, result_value_matcher_explain_missing_result_type)
{
const auto result = testing::internal::MakePredicateFormatterFromMatcher(Result(1_u64))(
Expand Down