tools/gn/config_unittest.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "testing/gtest/include/gtest/gtest.h"
   6 #include "tools/gn/config.h"
   7 #include "tools/gn/test_with_scope.h"
   8
   9 // Tests that the "resolved" values are the same as "own" values when there
  10 // are no subconfigs.
  11 TEST(Config, ResolvedNoSub) {
  12   TestWithScope setup;
  13   Err err;
  14
  15   Config config(setup.settings(), Label(SourceDir("//foo/"), "bar"));
  16   config.own_values().defines().push_back("FOO");
  17   ASSERT_TRUE(config.OnResolved(&err));
  18
  19   // The resolved values should be the same as the value we put in to
  20   // own_values().
  21   ASSERT_EQ(1u, config.resolved_values().defines().size());
  22   EXPECT_EQ("FOO", config.resolved_values().defines()[0]);
  23
  24   // As an optimization, the string should actually refer to the original. This
  25   // isn't required to pass for semantic correctness, though.
  26   EXPECT_TRUE(&config.own_values() == &config.resolved_values());
  27 }
  28
  29 // Tests that subconfigs are resolved in the correct order.
  30 TEST(Config, ResolvedSub) {
  31   TestWithScope setup;
  32   Err err;
  33
  34   Config sub1(setup.settings(), Label(SourceDir("//foo/"), "1"));
  35   sub1.own_values().defines().push_back("ONE");
  36   ASSERT_TRUE(sub1.OnResolved(&err));
  37
  38   Config sub2(setup.settings(), Label(SourceDir("//foo/"), "2"));
  39   sub2.own_values().defines().push_back("TWO");
  40   ASSERT_TRUE(sub2.OnResolved(&err));
  41
  42   Config config(setup.settings(), Label(SourceDir("//foo/"), "bar"));
  43   config.own_values().defines().push_back("FOO");
  44   config.configs().push_back(LabelConfigPair(&sub1));
  45   config.configs().push_back(LabelConfigPair(&sub2));
  46   ASSERT_TRUE(config.OnResolved(&err));
  47
  48   // The resolved values should be the same as the value we put in to
  49   // own_values().
  50   ASSERT_EQ(3u, config.resolved_values().defines().size());
  51   EXPECT_EQ("FOO", config.resolved_values().defines()[0]);
  52   EXPECT_EQ("ONE", config.resolved_values().defines()[1]);
  53   EXPECT_EQ("TWO", config.resolved_values().defines()[2]);
  54
  55   // The "own" values should be unchanged.
  56   ASSERT_EQ(1u, config.own_values().defines().size());
  57   EXPECT_EQ("FOO", config.own_values().defines()[0]);
  58 }
  59
  60 // Tests that subconfigs of subconfigs are resolved properly.
  61 TEST(Config, SubSub) {
  62   TestWithScope setup;
  63   Err err;
  64
  65   // Set up first -> middle -> last configs.
  66   Config last(setup.settings(), Label(SourceDir("//foo/"), "last"));
  67   last.own_values().defines().push_back("LAST");
  68   ASSERT_TRUE(last.OnResolved(&err));
  69
  70   Config middle(setup.settings(), Label(SourceDir("//foo/"), "middle"));
  71   middle.own_values().defines().push_back("MIDDLE");
  72   middle.configs().push_back(LabelConfigPair(&last));
  73   ASSERT_TRUE(middle.OnResolved(&err));
  74
  75   Config first(setup.settings(), Label(SourceDir("//foo/"), "first"));
  76   first.own_values().defines().push_back("FIRST");
  77   first.configs().push_back(LabelConfigPair(&middle));
  78   ASSERT_TRUE(first.OnResolved(&err));
  79
  80   // Check final resolved defines on "first".
  81   ASSERT_EQ(3u, first.resolved_values().defines().size());
  82   EXPECT_EQ("FIRST", first.resolved_values().defines()[0]);
  83   EXPECT_EQ("MIDDLE", first.resolved_values().defines()[1]);
  84   EXPECT_EQ("LAST", first.resolved_values().defines()[2]);
  85 }