src/gn/value_unittest.cc

// Copyright 2014 The Chromium 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 <stdint.h>

#include "gn/test_with_scope.h"
#include "gn/value.h"
#include "util/test/test.h"

TEST(Value, ToString) {
  Value strval(nullptr, "hi\" $me\\you\\$\\\"");
  EXPECT_EQ("hi\" $me\\you\\$\\\"", strval.ToString(false));
  EXPECT_EQ("\"hi\\\" \\$me\\you\\\\\\$\\\\\\\"\"", strval.ToString(true));

  // crbug.com/470217
  Value strval2(nullptr, "\\foo\\\\bar\\");
  EXPECT_EQ("\"\\foo\\\\\\bar\\\\\"", strval2.ToString(true));

  // Void type.
  EXPECT_EQ("<void>", Value().ToString(false));

  // Test lists, bools, and ints.
  Value listval(nullptr, Value::LIST);
  listval.list_value().push_back(Value(nullptr, "hi\"me"));
  listval.list_value().push_back(Value(nullptr, true));
  listval.list_value().push_back(Value(nullptr, false));
  listval.list_value().push_back(Value(nullptr, static_cast<int64_t>(42)));
  // Printing lists always causes embedded strings to be quoted (ignoring the
  // quote flag), or else they wouldn't make much sense.
  EXPECT_EQ("[\"hi\\\"me\", true, false, 42]", listval.ToString(false));
  EXPECT_EQ("[\"hi\\\"me\", true, false, 42]", listval.ToString(true));

  // Scopes.
  TestWithScope setup;
  Scope* scope = new Scope(setup.settings());
  Value scopeval(nullptr, std::unique_ptr<Scope>(scope));
  EXPECT_EQ("{ }", scopeval.ToString(false));

  // Test that an empty scope equals an empty scope.
  EXPECT_TRUE(scopeval == scopeval);

  scope->SetValue("a", Value(nullptr, static_cast<int64_t>(42)), nullptr);
  scope->SetValue("b", Value(nullptr, "hello, world"), nullptr);
  EXPECT_EQ("{\n  a = 42\n  b = \"hello, world\"\n}", scopeval.ToString(false));
  EXPECT_TRUE(scopeval == scopeval);

  Scope* inner_scope = new Scope(setup.settings());
  Value inner_scopeval(nullptr, std::unique_ptr<Scope>(inner_scope));
  inner_scope->SetValue("d", Value(nullptr, static_cast<int64_t>(42)), nullptr);
  scope->SetValue("c", inner_scopeval, nullptr);

  // Test inner scope equality.
  EXPECT_TRUE(scopeval == scopeval);

  // Nested scopes should not be equal.
  Scope* nested_scope = new Scope(scope);
  Value nested_scopeval(nullptr, std::unique_ptr<Scope>(nested_scope));
  EXPECT_FALSE(nested_scopeval == nested_scopeval);
}

TEST(Value, ListEquality) {
  Value empty_list1(nullptr, Value::LIST);
  Value empty_list2(nullptr, Value::LIST);
  EXPECT_TRUE(empty_list1 == empty_list2);

  // Trigger one to allocate its ValueList.
  empty_list1.list_value();
  EXPECT_TRUE(empty_list1 == empty_list2);
  EXPECT_TRUE(empty_list2 == empty_list1);

  // Trigger both to allocate.
  empty_list2.list_value();
  EXPECT_TRUE(empty_list1 == empty_list2);

  // Add an item to one list.
  empty_list1.list_value().push_back(Value(nullptr, "foo"));
  EXPECT_FALSE(empty_list1 == empty_list2);
  EXPECT_FALSE(empty_list2 == empty_list1);
}