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#include "src/tint/lang/wgsl/resolver/resolver_helper_test.h"

#include <memory>

#include "src/tint/lang/wgsl/reader/reader.h"

namespace tint::resolver {

TestHelper::TestHelper()
    : resolver_(std::make_unique<Resolver>(this, wgsl::AllowedFeatures::Everything())) {}

TestHelper::~TestHelper() = default;

void TestHelper::ExpectError(std::string_view wgsl, std::string_view error) {
    wgsl::reader::Options options{
        .allowed_features = wgsl::AllowedFeatures::Everything(),
    };
    auto file = std::make_unique<Source::File>("input.wgsl", wgsl);
    auto result = wgsl::reader::Parse(file.get(), std::move(options));
    ASSERT_TRUE(result.Diagnostics().ContainsErrors());

    // Strip a single leading newline to allow expected errors to start with a newline.
    if (!error.empty() && error[0] == '\n') {
        error = error.substr(1);
    }
    EXPECT_EQ(result.Diagnostics().Str(), error) << "GOT\n"
                                                 << result.Diagnostics().Str() << "\n\nEXPECTED\n"
                                                 << error << "\n";
}

void TestHelper::ExpectSuccess(std::string_view wgsl) {
    wgsl::reader::Options options{
        .allowed_features = wgsl::AllowedFeatures::Everything(),
    };
    auto file = std::make_unique<Source::File>("input.wgsl", wgsl);
    auto result = wgsl::reader::Parse(file.get(), std::move(options));
    ASSERT_TRUE(result.IsValid()) << result.Diagnostics().Str();
    ASSERT_FALSE(result.Diagnostics().ContainsErrors()) << result.Diagnostics().Str();
}

}  // namespace tint::resolver
