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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,142 @@ | ||
| #include <objc-helpers/BoxUtil.h> | ||
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| #include "doctest.h" | ||
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| TEST_SUITE_BEGIN( "BoxUtilTests" ); | ||
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| TEST_CASE( "integer" ) { | ||
| auto obj = box(42); | ||
| static_assert(std::is_same_v<decltype(obj), NSObject<BoxedValue, NSCopying> *>); | ||
| CHECK(boxedValue<int>(obj) == 42); | ||
| CHECK([obj.description isEqualToString:@"42"]); | ||
| CHECK(obj.hash == std::hash<int>()(42)); | ||
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| @try { | ||
| boxedValue<long>(obj); | ||
| FAIL("able to unbox wrong type"); | ||
| } @catch (NSException * exc) { | ||
| CHECK([exc.name isEqualToString:NSInvalidArgumentException]); | ||
| } | ||
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| auto objc = (decltype(obj))[obj copy]; | ||
| CHECK(boxedValue<int>(objc) == 42); | ||
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| CHECK([objc isEqual:obj]); | ||
| CHECK([objc isEqualTo:obj]); | ||
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| CHECK(![objc isEqual:nullptr]); | ||
| CHECK([objc isEqual:objc]); | ||
| CHECK(![objc isEqual:@(42)]); | ||
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| @try { | ||
| [[maybe_unused]] auto obj1 = (NSObject *)[[obj.class alloc] init]; | ||
| FAIL("able to call init"); | ||
| } @catch (NSException * exc) { | ||
| CHECK([exc.name isEqualToString:NSInvalidArgumentException]); | ||
| } | ||
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| @try { | ||
| [obj.class new]; | ||
| FAIL("able to call new"); | ||
| } @catch (NSException * exc) { | ||
| CHECK([exc.name isEqualToString:NSInvalidArgumentException]); | ||
| } | ||
| } | ||
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| TEST_CASE( "string" ) { | ||
| std::string str("abc"); | ||
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| auto obj = box(std::string("abc")); | ||
| static_assert(std::is_same_v<decltype(obj), NSObject<BoxedValue, NSCopying> *>); | ||
| CHECK(boxedValue<std::string>(obj) == str); | ||
| CHECK([obj.description isEqualToString:@"abc"]); | ||
| CHECK(obj.hash == std::hash<std::string>()(str)); | ||
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| auto objc = (decltype(obj))[obj copy]; | ||
| CHECK(boxedValue<std::string>(objc) == str); | ||
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| CHECK([objc isEqual:obj]); | ||
| CHECK([objc isEqualTo:obj]); | ||
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| auto objm = box(std::move(str)); | ||
| CHECK(boxedValue<std::string>(objm) == "abc"); | ||
| CHECK(str.empty()); | ||
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| auto obje = box<std::string>(size_t(5), 'a'); | ||
| CHECK(boxedValue<std::string>(obje) == "aaaaa"); | ||
| } | ||
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| TEST_CASE( "unique_ptr" ) { | ||
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| auto obj = box(std::make_unique<int>(5)); | ||
| static_assert(std::is_same_v<decltype(obj), NSObject<BoxedValue> *>); | ||
| CHECK(*boxedValue<std::unique_ptr<int>>(obj) == 5); | ||
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| @try { | ||
| [[maybe_unused]] auto objc = (decltype(obj))[obj copy]; | ||
| FAIL("exception not thrown"); | ||
| } @catch (NSException * exc) { | ||
| CHECK([exc.name isEqualToString:NSInvalidArgumentException]); | ||
| } | ||
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| auto ptr = std::make_unique<int>(6); | ||
| auto hash = std::hash<std::unique_ptr<int>>()(ptr); | ||
| void * val = ptr.get(); | ||
| auto objm = box(std::move(ptr)); | ||
| CHECK(!ptr); | ||
| CHECK(*boxedValue<std::unique_ptr<int>>(objm) == 6); | ||
| CHECK(boxedValue<std::unique_ptr<int>>(objm).get() == val); | ||
| CHECK(objm.hash == hash); | ||
| CHECK([objm.description isEqualToString:[NSString stringWithFormat:@"%p", val]]); | ||
| } | ||
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| TEST_CASE( "struct" ) { | ||
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| struct foo { | ||
| int i; | ||
| char c; | ||
| }; | ||
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| auto obj1 = box(foo{4, 'b'}); | ||
| auto obj2 = box(foo{4, 'b'}); | ||
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| CHECK(boxedValue<foo>(obj1).i == 4); | ||
| CHECK(boxedValue<foo>(obj2).c == 'b'); | ||
| CHECK(![obj1 isEqual:obj2]); | ||
| CHECK(obj1.hash != obj2.hash); | ||
| } | ||
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| TEST_CASE( "equal-no-hash" ) { | ||
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| struct foo { | ||
| int i; | ||
| char c; | ||
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| bool operator==(const foo & rhs) const = default; | ||
| }; | ||
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| auto obj1 = box(foo{4, 'b'}); | ||
| auto obj2 = box(foo{4, 'b'}); | ||
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| CHECK(boxedValue<foo>(obj1).i == 4); | ||
| CHECK(boxedValue<foo>(obj2).c == 'b'); | ||
| CHECK([obj1 isEqual:obj2]); | ||
| @try { | ||
| [[maybe_unused]] auto hash = obj1.hash; | ||
| FAIL("exception not thrown"); | ||
| } @catch (NSException * exc) { | ||
| CHECK([exc.name isEqualToString:NSInvalidArgumentException]); | ||
| } | ||
| } | ||
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| struct qwerty {}; | ||
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| TEST_CASE( "no-desc" ) { | ||
| auto obj = box<qwerty>(); | ||
| CHECK([obj.description isEqualToString:@"Boxed object of type \"qwerty\""]); | ||
| } | ||
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| TEST_SUITE_END(); |
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