third_party/angle/src/tests/preprocessor_tests/error_test.cpp

//
// Copyright 2012 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

#include "PreprocessorTest.h"
#include "compiler/preprocessor/Token.h"

namespace angle
{

class ErrorTest : public SimplePreprocessorTest
{};

TEST_F(ErrorTest, Empty)
{
    const char *str      = "#error\n";
    const char *expected = "\n";

    using testing::_;
    EXPECT_CALL(mDirectiveHandler, handleError(pp::SourceLocation(0, 1), ""));
    // No error or warning.
    EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);

    preprocess(str, expected);
}

TEST_F(ErrorTest, OneTokenMessage)
{
    const char *str      = "#error foo\n";
    const char *expected = "\n";

    using testing::_;
    EXPECT_CALL(mDirectiveHandler, handleError(pp::SourceLocation(0, 1), " foo"));
    // No error or warning.
    EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);

    preprocess(str, expected);
}

TEST_F(ErrorTest, TwoTokenMessage)
{
    const char *str      = "#error foo bar\n";
    const char *expected = "\n";

    using testing::_;
    EXPECT_CALL(mDirectiveHandler, handleError(pp::SourceLocation(0, 1), " foo bar"));
    // No error or warning.
    EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);

    preprocess(str, expected);
}

TEST_F(ErrorTest, Comments)
{
    const char *str =
        "/*foo*/"
        "#"
        "/*foo*/"
        "error"
        "/*foo*/"
        "foo"
        "/*foo*/"
        "bar"
        "/*foo*/"
        "//foo"
        "\n";
    const char *expected = "\n";

    using testing::_;
    EXPECT_CALL(mDirectiveHandler, handleError(pp::SourceLocation(0, 1), " foo bar"));
    // No error or warning.
    EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);

    preprocess(str, expected);
}

TEST_F(ErrorTest, MissingNewline)
{
    const char *str      = "#error foo";
    const char *expected = "";

    using testing::_;
    // Directive successfully parsed.
    EXPECT_CALL(mDirectiveHandler, handleError(pp::SourceLocation(0, 1), " foo"));
    // Error reported about EOF.
    EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_EOF_IN_DIRECTIVE, _, _));

    preprocess(str, expected);
}

}  // namespace angle