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#include "src/tint/lang/wgsl/helpers/check_supported_extensions.h"

#include "gtest/gtest.h"

#include "src/tint/lang/wgsl/program/program_builder.h"

namespace tint::wgsl {
namespace {

class CheckSupportedExtensionsTest : public ::testing::Test, public ProgramBuilder {};

TEST_F(CheckSupportedExtensionsTest, Supported) {
    Enable(wgsl::Extension::kF16);

    ASSERT_TRUE(CheckSupportedExtensions("writer", AST(), Diagnostics(),
                                         Vector{
                                             wgsl::Extension::kF16,
                                             wgsl::Extension::kChromiumExperimentalSubgroups,
                                         }));
}

TEST_F(CheckSupportedExtensionsTest, Unsupported) {
    Enable(Source{{12, 34}}, wgsl::Extension::kF16);

    ASSERT_FALSE(CheckSupportedExtensions("writer", AST(), Diagnostics(),
                                          Vector{
                                              wgsl::Extension::kChromiumExperimentalSubgroups,
                                          }));
    EXPECT_EQ(Diagnostics().Str(), "12:34 error: writer backend does not support extension 'f16'");
}

}  // namespace
}  // namespace tint::wgsl