1 // Copyright 2014 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 <sstream>
6
7 #include "testing/gtest/include/gtest/gtest.h"
8 #include "tools/gn/config.h"
9 #include "tools/gn/config_values_extractors.h"
10 #include "tools/gn/target.h"
11 #include "tools/gn/test_with_scope.h"
12
13 namespace {
14
15 struct FlagWriter {
operator ()__anond7eb10990111::FlagWriter16 void operator()(const std::string& dir, std::ostream& out) const {
17 out << dir << " ";
18 }
19 };
20
21 struct IncludeWriter {
operator ()__anond7eb10990111::IncludeWriter22 void operator()(const SourceDir& dir, std::ostream& out) const {
23 out << dir.value() << " ";
24 }
25 };
26
27 } // namespace
28
TEST(ConfigValuesExtractors,IncludeOrdering)29 TEST(ConfigValuesExtractors, IncludeOrdering) {
30 TestWithScope setup;
31
32 // Construct a chain of dependencies: target -> dep1 -> dep2
33 // Add representative values: cflags (opaque, always copied) and include_dirs
34 // (uniquified) to each one so we can check what comes out the other end.
35
36 // Set up dep2, direct and all dependent configs.
37 Config dep2_all(setup.settings(), Label(SourceDir("//dep2/"), "all"));
38 dep2_all.config_values().cflags().push_back("--dep2-all");
39 dep2_all.config_values().include_dirs().push_back(SourceDir("//dep2/all/"));
40
41 Config dep2_direct(setup.settings(), Label(SourceDir("//dep2/"), "direct"));
42 dep2_direct.config_values().cflags().push_back("--dep2-direct");
43 dep2_direct.config_values().include_dirs().push_back(
44 SourceDir("//dep2/direct/"));
45
46 Target dep2(setup.settings(), Label(SourceDir("//dep2/"), "dep2"));
47 dep2.set_output_type(Target::SOURCE_SET);
48 dep2.all_dependent_configs().push_back(LabelConfigPair(&dep2_all));
49 dep2.direct_dependent_configs().push_back(LabelConfigPair(&dep2_direct));
50
51 // Set up dep1, direct and all dependent configs.
52 Config dep1_all(setup.settings(), Label(SourceDir("//dep1/"), "all"));
53 dep1_all.config_values().cflags().push_back("--dep1-all");
54 dep1_all.config_values().include_dirs().push_back(SourceDir("//dep1/all/"));
55
56 Config dep1_direct(setup.settings(), Label(SourceDir("//dep1/"), "direct"));
57 dep1_direct.config_values().cflags().push_back("--dep1-direct");
58 dep1_direct.config_values().include_dirs().push_back(
59 SourceDir("//dep1/direct/"));
60
61 Target dep1(setup.settings(), Label(SourceDir("//dep1/"), "dep1"));
62 dep1.set_output_type(Target::SOURCE_SET);
63 dep1.all_dependent_configs().push_back(LabelConfigPair(&dep1_all));
64 dep1.direct_dependent_configs().push_back(LabelConfigPair(&dep1_direct));
65 dep1.deps().push_back(LabelTargetPair(&dep2));
66
67 // Set up target, direct and all dependent configs.
68 Config target_all(setup.settings(), Label(SourceDir("//target/"), "all"));
69 target_all.config_values().cflags().push_back("--target-all");
70 target_all.config_values().include_dirs().push_back(
71 SourceDir("//target/all/"));
72
73 Config target_direct(setup.settings(),
74 Label(SourceDir("//target/"), "direct"));
75 target_direct.config_values().cflags().push_back("--target-direct");
76 target_direct.config_values().include_dirs().push_back(
77 SourceDir("//target/direct/"));
78
79 // This config is applied directly to target.
80 Config target_config(setup.settings(),
81 Label(SourceDir("//target/"), "config"));
82 target_config.config_values().cflags().push_back("--target-config");
83 target_config.config_values().include_dirs().push_back(
84 SourceDir("//target/config/"));
85
86 Target target(setup.settings(), Label(SourceDir("//target/"), "target"));
87 target.set_output_type(Target::SOURCE_SET);
88 target.all_dependent_configs().push_back(LabelConfigPair(&target_all));
89 target.direct_dependent_configs().push_back(LabelConfigPair(&target_direct));
90 target.configs().push_back(LabelConfigPair(&target_config));
91 target.deps().push_back(LabelTargetPair(&dep1));
92
93
94 // Additionally add some values directly on "target".
95 target.config_values().cflags().push_back("--target");
96 target.config_values().include_dirs().push_back(
97 SourceDir("//target/"));
98
99 // Mark targets resolved. This should push dependent configs.
100 dep2.OnResolved();
101 dep1.OnResolved();
102 target.OnResolved();
103
104 // Verify cflags by serializing.
105 std::ostringstream flag_out;
106 FlagWriter flag_writer;
107 RecursiveTargetConfigToStream<std::string, FlagWriter>(
108 &target, &ConfigValues::cflags, flag_writer, flag_out);
109 EXPECT_EQ(flag_out.str(),
110 "--target --target-config --target-all --target-direct "
111 "--dep1-all --dep2-all --dep1-direct ");
112
113 // Verify include dirs by serializing.
114 std::ostringstream include_out;
115 IncludeWriter include_writer;
116 RecursiveTargetConfigToStream<SourceDir, IncludeWriter>(
117 &target, &ConfigValues::include_dirs, include_writer, include_out);
118 EXPECT_EQ(include_out.str(),
119 "//target/ //target/config/ //target/all/ //target/direct/ "
120 "//dep1/all/ //dep2/all/ //dep1/direct/ ");
121 }
122