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#include "googletest.h"

#include <clangactivationsequenceprocessor.h>

#include <cplusplus/Token.h>

namespace {

using testing::PrintToString;
using namespace CPlusPlus;
using ClangCodeModel::Internal::ActivationSequenceProcessor;

MATCHER_P3(HasResult, completionKind, offset, newPosition,
           std::string(negation ? "hasn't" : "has")
           + " result of completion kind " + PrintToString(Token::name(completionKind))
           + ", offset " + PrintToString(offset)
           + " and new operator start position" + PrintToString(newPosition))
{
    if (arg.completionKind() != completionKind
            || arg.offset() != offset
            || arg.operatorStartPosition() != newPosition) {
        *result_listener << "completion kind is " << PrintToString(Token::name(arg.completionKind()))
                         << ", offset is " <<  PrintToString(arg.offset())
                         << " and new operator start position is " <<  PrintToString(arg.operatorStartPosition());
        return false;
    }

    return true;
}

TEST(ActivationSequenceProcessor, CouldNotProcesseRandomCharacters)
{
    ActivationSequenceProcessor processor(QStringLiteral("xxx"), 3, false);

    ASSERT_THAT(processor, HasResult(T_EOF_SYMBOL, 0, 3));
}

TEST(ActivationSequenceProcessor, CouldNotProcesseEmptyString)
{
    ActivationSequenceProcessor processor(QStringLiteral(""), 0, true);

    ASSERT_THAT(processor, HasResult(T_EOF_SYMBOL, 0, 0));
}

TEST(ActivationSequenceProcessor, Dot)
{
    ActivationSequenceProcessor processor(QStringLiteral("."), 1, true);

    ASSERT_THAT(processor, HasResult(T_DOT, 1, 0));
}

TEST(ActivationSequenceProcessor, Comma)
{
    ActivationSequenceProcessor processor(QStringLiteral(","), 2, false);

    ASSERT_THAT(processor, HasResult(T_COMMA, 1, 1));
}

TEST(ActivationSequenceProcessor, LeftParenAsFunctionCall)
{
    ActivationSequenceProcessor processor(QStringLiteral("("), 3, true);

    ASSERT_THAT(processor, HasResult(T_LPAREN, 1, 2));
}

TEST(ActivationSequenceProcessor, LeftParenNotAsFunctionCall)
{
    ActivationSequenceProcessor processor(QStringLiteral("("), 3, false);

    ASSERT_THAT(processor, HasResult(T_EOF_SYMBOL, 0, 3));
}

TEST(ActivationSequenceProcessor, ColonColon)
{
    ActivationSequenceProcessor processor(QStringLiteral("::"), 20, true);

    ASSERT_THAT(processor, HasResult(T_COLON_COLON, 2, 18));
}

TEST(ActivationSequenceProcessor, Arrow)
{
    ActivationSequenceProcessor processor(QStringLiteral("->"), 2, true);

    ASSERT_THAT(processor, HasResult(T_ARROW, 2, 0));
}

TEST(ActivationSequenceProcessor, DotStar)
{
    ActivationSequenceProcessor processor(QStringLiteral(".*"), 3, true);

    ASSERT_THAT(processor, HasResult(T_DOT_STAR, 2, 1));
}

TEST(ActivationSequenceProcessor, ArrowStar)
{
    ActivationSequenceProcessor processor(QStringLiteral("->*"), 3, true);

    ASSERT_THAT(processor, HasResult(T_ARROW_STAR, 3, 0));
}

TEST(ActivationSequenceProcessor, DoxyGenCommentBackSlash)
{
    ActivationSequenceProcessor processor(QStringLiteral(" \\"), 3, true);

    ASSERT_THAT(processor, HasResult(T_DOXY_COMMENT, 1, 2));
}

TEST(ActivationSequenceProcessor, DoxyGenCommentAt)
{
    ActivationSequenceProcessor processor(QStringLiteral(" @"), 2, true);

    ASSERT_THAT(processor, HasResult(T_DOXY_COMMENT, 1, 1));
}

TEST(ActivationSequenceProcessor, AngleStringLiteral)
{
    ActivationSequenceProcessor processor(QStringLiteral("<"), 1, true);

    ASSERT_THAT(processor, HasResult(T_ANGLE_STRING_LITERAL, 1, 0));
}

TEST(ActivationSequenceProcessor, StringLiteral)
{
    ActivationSequenceProcessor processor(QStringLiteral("\""), 1, true);

    ASSERT_THAT(processor, HasResult(T_STRING_LITERAL, 1, 0));
}

TEST(ActivationSequenceProcessor, Slash)
{
    ActivationSequenceProcessor processor(QStringLiteral("/"), 1, true);

    ASSERT_THAT(processor, HasResult(T_SLASH, 1, 0));
}

TEST(ActivationSequenceProcessor, Pound)
{
    ActivationSequenceProcessor processor(QStringLiteral("#"), 1, true);

    ASSERT_THAT(processor, HasResult(T_POUND, 1, 0));
}

TEST(ActivationSequenceProcessor, PositionIsOne)
{
    ActivationSequenceProcessor processor(QStringLiteral("<xx"), 1, false);

    ASSERT_THAT(processor, HasResult(T_ANGLE_STRING_LITERAL, 1, 0));
}

TEST(ActivationSequenceProcessor, PositionIsTwo)
{
    ActivationSequenceProcessor processor(QStringLiteral(" @x"), 2, true);

    ASSERT_THAT(processor, HasResult(T_DOXY_COMMENT, 1, 1));
}

TEST(ActivationSequenceProcessor, PositionIsTwoWithASingleSign)
{
    ActivationSequenceProcessor processor(QStringLiteral("x<x"), 2, false);

    ASSERT_THAT(processor, HasResult(T_ANGLE_STRING_LITERAL, 1, 1));
}

TEST(ActivationSequenceProcessor, PositionIsThree)
{
    ActivationSequenceProcessor processor(QStringLiteral("xx<"), 3, false);

    ASSERT_THAT(processor, HasResult(T_ANGLE_STRING_LITERAL, 1, 2));
}
}