src/tint/lang/spirv/writer/ast_printer/ast_printer_test.cc

// Copyright 2020 The Dawn & Tint Authors
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#include "src/tint/lang/spirv/writer/ast_printer/helper_test.h"
#include "src/tint/lang/spirv/writer/writer.h"

namespace tint::spirv::writer {
namespace {

using SpirvASTPrinterTest = TestHelper;

TEST_F(SpirvASTPrinterTest, InvalidProgram) {
    Diagnostics().add_error(diag::System::Writer, "make the program invalid");
    ASSERT_FALSE(IsValid());
    auto program = resolver::Resolve(*this);
    ASSERT_FALSE(program.IsValid());
    auto result = Generate(program, Options{});
    EXPECT_FALSE(result);
    EXPECT_EQ(result.Failure().reason.str(), "error: make the program invalid");
}

TEST_F(SpirvASTPrinterTest, UnsupportedExtension) {
    Enable(Source{{12, 34}}, wgsl::Extension::kChromiumInternalRelaxedUniformLayout);

    auto program = resolver::Resolve(*this);
    auto result = Generate(program, Options{});
    EXPECT_FALSE(result);
    EXPECT_EQ(
        result.Failure().reason.str(),
        R"(12:34 error: SPIR-V backend does not support extension 'chromium_internal_relaxed_uniform_layout')");
}

TEST_F(SpirvASTPrinterTest, RequiresDirective) {
    Require(wgsl::LanguageFeature::kReadonlyAndReadwriteStorageTextures);

    auto program = resolver::Resolve(*this);
    auto result = Generate(program, Options{});
    EXPECT_TRUE(result);
}

}  // namespace
}  // namespace tint::spirv::writer