tools/gn/function_rebase_path_unittest.cc

   1 // Copyright (c) 2013 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 "build/build_config.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7 #include "tools/gn/functions.h"
   8 #include "tools/gn/parse_tree.h"
   9 #include "tools/gn/test_with_scope.h"
  10
  11 namespace {
  12
  13 std::string RebaseOne(Scope* scope,
  14                       const char* input,
  15                       const char* to_dir,
  16                       const char* from_dir) {
  17   std::vector<Value> args;
  18   args.push_back(Value(NULL, input));
  19   args.push_back(Value(NULL, to_dir));
  20   args.push_back(Value(NULL, from_dir));
  21
  22   Err err;
  23   FunctionCallNode function;
  24   Value result = functions::RunRebasePath(scope, &function, args, &err);
  25   bool is_string = result.type() == Value::STRING;
  26   EXPECT_TRUE(is_string);
  27
  28   return result.string_value();
  29 }
  30
  31 }  // namespace
  32
  33 TEST(RebasePath, Strings) {
  34   TestWithScope setup;
  35   setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
  36   Scope* scope = setup.scope();
  37   scope->set_source_dir(SourceDir("//tools/gn/"));
  38
  39   // Build-file relative paths.
  40   EXPECT_EQ("../../tools/gn", RebaseOne(scope, ".", "//out/Debug", "."));
  41   EXPECT_EQ("../../tools/gn/", RebaseOne(scope, "./", "//out/Debug", "."));
  42   EXPECT_EQ("../../tools/gn/foo", RebaseOne(scope, "foo", "//out/Debug", "."));
  43   EXPECT_EQ("../..", RebaseOne(scope, "../..", "//out/Debug", "."));
  44   EXPECT_EQ("../../", RebaseOne(scope, "../../", "//out/Debug", "."));
  45
  46   // We don't allow going above the root source dir.
  47   EXPECT_EQ("../..", RebaseOne(scope, "../../..", "//out/Debug", "."));
  48
  49   // Source-absolute input paths.
  50   EXPECT_EQ("./", RebaseOne(scope, "//", "//", "//"));
  51   EXPECT_EQ("foo", RebaseOne(scope, "//foo", "//", "//"));
  52   EXPECT_EQ("foo/", RebaseOne(scope, "//foo/", "//", "//"));
  53   EXPECT_EQ("../../foo/bar", RebaseOne(scope, "//foo/bar", "//out/Debug", "."));
  54   EXPECT_EQ("./", RebaseOne(scope, "//foo/", "//foo/", "//"));
  55   // Thie one is technically correct but could be simplified to "." if
  56   // necessary.
  57   EXPECT_EQ("../foo", RebaseOne(scope, "//foo", "//foo", "//"));
  58
  59   // Test slash conversion.
  60   EXPECT_EQ("foo/bar", RebaseOne(scope, "foo/bar", ".", "."));
  61   EXPECT_EQ("foo/bar", RebaseOne(scope, "foo\\bar", ".", "."));
  62
  63   // Test system path output.
  64 #if defined(OS_WIN)
  65   setup.build_settings()->SetRootPath(base::FilePath(L"C:/source"));
  66   EXPECT_EQ("C:/source", RebaseOne(scope, ".", "", "//"));
  67   EXPECT_EQ("C:/source/", RebaseOne(scope, "//", "", "//"));
  68   EXPECT_EQ("C:/source/foo", RebaseOne(scope, "foo", "", "//"));
  69   EXPECT_EQ("C:/source/foo/", RebaseOne(scope, "foo/", "", "//"));
  70   EXPECT_EQ("C:/source/tools/gn/foo", RebaseOne(scope, "foo", "", "."));
  71 #else
  72   setup.build_settings()->SetRootPath(base::FilePath("/source"));
  73   EXPECT_EQ("/source", RebaseOne(scope, ".", "", "//"));
  74   EXPECT_EQ("/source/", RebaseOne(scope, "//", "", "//"));
  75   EXPECT_EQ("/source/foo", RebaseOne(scope, "foo", "", "//"));
  76   EXPECT_EQ("/source/foo/", RebaseOne(scope, "foo/", "", "//"));
  77   EXPECT_EQ("/source/tools/gn/foo", RebaseOne(scope, "foo", "", "."));
  78 #endif
  79 }
  80
  81 // Test list input.
  82 TEST(RebasePath, List) {
  83   TestWithScope setup;
  84   setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
  85   setup.scope()->set_source_dir(SourceDir("//tools/gn/"));
  86
  87   std::vector<Value> args;
  88   args.push_back(Value(NULL, Value::LIST));
  89   args[0].list_value().push_back(Value(NULL, "foo.txt"));
  90   args[0].list_value().push_back(Value(NULL, "bar.txt"));
  91   args.push_back(Value(NULL, "//out/Debug/"));
  92   args.push_back(Value(NULL, "."));
  93
  94   Err err;
  95   FunctionCallNode function;
  96   Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
  97   EXPECT_FALSE(err.has_error());
  98
  99   ASSERT_EQ(Value::LIST, ret.type());
 100   ASSERT_EQ(2u, ret.list_value().size());
 101
 102   EXPECT_EQ("../../tools/gn/foo.txt", ret.list_value()[0].string_value());
 103   EXPECT_EQ("../../tools/gn/bar.txt", ret.list_value()[1].string_value());
 104 }
 105
 106 TEST(RebasePath, Errors) {
 107   TestWithScope setup;
 108   setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
 109
 110   // No arg input should issue an error.
 111   Err err;
 112   std::vector<Value> args;
 113   FunctionCallNode function;
 114   Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
 115   EXPECT_TRUE(err.has_error());
 116 }