src/dawn/tests/StringViewMatchers.h

// Copyright 2020 The Dawn & Tint Authors
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#ifndef SRC_DAWN_TESTS_STRINGVIEWMATCHERS_H_
#define SRC_DAWN_TESTS_STRINGVIEWMATCHERS_H_

#include <string_view>

#include "dawn/webgpu_cpp.h"
#include "gmock/gmock.h"

namespace testing {

MATCHER(EmptySizedString, "") {
    return arg.length == 0;
}

MATCHER(NonEmptySizedString, "") {
    return arg.length != 0 && arg.length != WGPU_STRLEN;
}

MATCHER_P(SizedString, expected, "") {
    return arg.length != WGPU_STRLEN && std::string_view(arg.data, arg.length) == expected;
}

MATCHER_P(SizedStringMatches, matcher, "") {
    if (arg.length == WGPU_STRLEN) {
        return false;
    }
    std::string_view v = {arg.data, arg.length};
    return Matches(matcher)(v);
}

}  // namespace testing

#endif  // SRC_DAWN_TESTS_STRINGVIEWMATCHERS_H_