106 lines
4.0 KiB
C++
106 lines
4.0 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_TEST_VALUES_TEST_UTIL_H_
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#define BASE_TEST_VALUES_TEST_UTIL_H_
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#include <iosfwd>
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#include <memory>
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#include <string>
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#include "base/strings/string_piece.h"
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#include "base/values.h"
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#include "testing/gmock/include/gmock/gmock-matchers.h"
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namespace base {
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// All the functions below expect that the value for the given key in
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// the given dictionary equals the given expected value.
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void ExpectDictBooleanValue(bool expected_value,
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const DictionaryValue& value,
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const std::string& key);
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void ExpectDictDictionaryValue(const DictionaryValue& expected_value,
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const DictionaryValue& value,
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const std::string& key);
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void ExpectDictIntegerValue(int expected_value,
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const DictionaryValue& value,
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const std::string& key);
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void ExpectDictListValue(const ListValue& expected_value,
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const DictionaryValue& value,
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const std::string& key);
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void ExpectDictStringValue(const std::string& expected_value,
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const DictionaryValue& value,
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const std::string& key);
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void ExpectStringValue(const std::string& expected_str, const Value& actual);
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namespace test {
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// A custom GMock matcher which matches if a base::Value is a dictionary which
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// has a key |key| that is equal to |value|.
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testing::Matcher<const base::Value&> DictionaryHasValue(
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const std::string& key,
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const base::Value& expected_value);
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// A custom GMock matcher which matches if a base::Value is a dictionary which
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// contains all key/value pairs from |template_value|.
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testing::Matcher<const base::Value&> DictionaryHasValues(
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const base::Value& template_value);
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// A custom GMock matcher. For details, see
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// https://github.com/google/googletest/blob/644319b9f06f6ca9bf69fe791be399061044bc3d/googlemock/docs/CookBook.md#writing-new-polymorphic-matchers
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class IsJsonMatcher {
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public:
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explicit IsJsonMatcher(base::StringPiece json);
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explicit IsJsonMatcher(const base::Value& value);
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IsJsonMatcher(const IsJsonMatcher& other);
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~IsJsonMatcher();
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bool MatchAndExplain(base::StringPiece json,
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testing::MatchResultListener* listener) const;
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bool MatchAndExplain(const base::Value& value,
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testing::MatchResultListener* listener) const;
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void DescribeTo(std::ostream* os) const;
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void DescribeNegationTo(std::ostream* os) const;
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private:
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IsJsonMatcher& operator=(const IsJsonMatcher& other) = delete;
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base::Value expected_value_;
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};
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// Creates a GMock matcher for testing equivalence of JSON values represented as
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// either JSON strings or base::Value objects. Parsing of the expected value
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// uses ParseJson(), which allows trailing commas for convenience. Parsing of
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// the actual value follows the JSON spec strictly.
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//
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// Although it possible to use this matcher when the actual and expected values
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// are both base::Value objects, there is no advantage in that case to using
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// this matcher in place of GMock's normal equality semantics.
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template <typename T>
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inline testing::PolymorphicMatcher<IsJsonMatcher> IsJson(const T& value) {
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return testing::MakePolymorphicMatcher(IsJsonMatcher(value));
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}
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// Parses |json| as JSON, allowing trailing commas, and returns the resulting
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// value. If |json| fails to parse, causes an EXPECT failure and returns the
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// Null Value.
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Value ParseJson(StringPiece json);
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// DEPRECATED.
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// Parses |json| as JSON, allowing trailing commas, and returns the
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// resulting value. If the json fails to parse, causes an EXPECT
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// failure and returns the Null Value (but never a NULL pointer).
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std::unique_ptr<Value> ParseJsonDeprecated(StringPiece json);
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} // namespace test
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} // namespace base
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#endif // BASE_TEST_VALUES_TEST_UTIL_H_
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