67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <gtest/gtest.h>
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#include <react/renderer/css/CSSDataType.h>
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#include <react/renderer/css/CSSNumber.h>
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#include <react/renderer/css/CSSValueParser.h>
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namespace facebook::react {
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struct ConsumeDataType {
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float number{};
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constexpr bool operator==(const ConsumeDataType& other) const = default;
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};
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template <>
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struct CSSDataTypeParser<ConsumeDataType> {
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constexpr static std::optional<ConsumeDataType> consume(
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CSSSyntaxParser& parser) {
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auto val = parseNextCSSValue<CSSNumber>(parser);
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if (std::holds_alternative<CSSNumber>(val)) {
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return ConsumeDataType{std::get<CSSNumber>(val).value};
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}
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return {};
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}
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};
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static_assert(CSSDataType<ConsumeDataType>);
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TEST(CSSValueParser, consume_multiple_with_delimeter) {
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CSSSyntaxParser parser{"1 2, 3, 4 / 5"};
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auto next = parseNextCSSValue<ConsumeDataType>(parser);
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EXPECT_TRUE(std::holds_alternative<ConsumeDataType>(next));
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EXPECT_EQ(std::get<ConsumeDataType>(next).number, 1);
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next = parseNextCSSValue<ConsumeDataType>(parser, CSSDelimiter::None);
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EXPECT_FALSE(std::holds_alternative<ConsumeDataType>(next));
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next = parseNextCSSValue<ConsumeDataType>(parser, CSSDelimiter::Whitespace);
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EXPECT_TRUE(std::holds_alternative<ConsumeDataType>(next));
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EXPECT_EQ(std::get<ConsumeDataType>(next).number, 2);
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next = parseNextCSSValue<ConsumeDataType>(parser, CSSDelimiter::Comma);
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EXPECT_TRUE(std::holds_alternative<ConsumeDataType>(next));
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EXPECT_EQ(std::get<ConsumeDataType>(next).number, 3);
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next = parseNextCSSValue<ConsumeDataType>(parser, CSSDelimiter::Comma);
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EXPECT_TRUE(std::holds_alternative<ConsumeDataType>(next));
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EXPECT_EQ(std::get<ConsumeDataType>(next).number, 4);
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next = parseNextCSSValue<ConsumeDataType>(parser, CSSDelimiter::Solidus);
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EXPECT_TRUE(std::holds_alternative<ConsumeDataType>(next));
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EXPECT_EQ(std::get<ConsumeDataType>(next).number, 5);
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next = parseNextCSSValue<ConsumeDataType>(parser);
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EXPECT_FALSE(std::holds_alternative<ConsumeDataType>(next));
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}
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} // namespace facebook::react
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