tools/gn/input_conversion_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 "testing/gtest/include/gtest/gtest.h"
   6 #include "tools/gn/err.h"
   7 #include "tools/gn/input_conversion.h"
   8 #include "tools/gn/input_file.h"
   9 #include "tools/gn/parse_tree.h"
  10 #include "tools/gn/scheduler.h"
  11 #include "tools/gn/test_with_scope.h"
  12 #include "tools/gn/value.h"
  13
  14 namespace {
  15
  16 // InputConversion needs a global scheduler object.
  17 class InputConversionTest : public testing::Test {
  18  public:
  19   InputConversionTest() {}
  20
  21   const Settings* settings() { return setup_.settings(); }
  22
  23  private:
  24   TestWithScope setup_;
  25
  26   Scheduler scheduler_;
  27 };
  28
  29 }  // namespace
  30
  31 TEST_F(InputConversionTest, String) {
  32   Err err;
  33   std::string input("\nfoo bar  \n");
  34   Value result = ConvertInputToValue(settings(), input, nullptr,
  35                                      Value(nullptr, "string"), &err);
  36   EXPECT_FALSE(err.has_error());
  37   EXPECT_EQ(Value::STRING, result.type());
  38   EXPECT_EQ(input, result.string_value());
  39
  40   // Test with trimming.
  41   result = ConvertInputToValue(settings(), input, nullptr,
  42                                Value(nullptr, "trim string"), &err);
  43   EXPECT_FALSE(err.has_error());
  44   EXPECT_EQ(Value::STRING, result.type());
  45   EXPECT_EQ("foo bar", result.string_value());
  46 }
  47
  48 TEST_F(InputConversionTest, ListLines) {
  49   Err err;
  50   std::string input("\nfoo\nbar  \n\n");
  51   Value result = ConvertInputToValue(settings(), input, nullptr,
  52                                      Value(nullptr, "list lines"), &err);
  53   EXPECT_FALSE(err.has_error());
  54   EXPECT_EQ(Value::LIST, result.type());
  55   ASSERT_EQ(4u, result.list_value().size());
  56   EXPECT_EQ("",    result.list_value()[0].string_value());
  57   EXPECT_EQ("foo", result.list_value()[1].string_value());
  58   EXPECT_EQ("bar", result.list_value()[2].string_value());
  59   EXPECT_EQ("",    result.list_value()[3].string_value());
  60
  61   // Test with trimming.
  62   result = ConvertInputToValue(settings(), input, nullptr,
  63                                Value(nullptr, "trim list lines"), &err);
  64   EXPECT_FALSE(err.has_error());
  65   EXPECT_EQ(Value::LIST, result.type());
  66   ASSERT_EQ(2u, result.list_value().size());
  67   EXPECT_EQ("foo", result.list_value()[0].string_value());
  68   EXPECT_EQ("bar", result.list_value()[1].string_value());
  69 }
  70
  71 TEST_F(InputConversionTest, ValueString) {
  72   Err err;
  73   std::string input("\"str\"");
  74   Value result = ConvertInputToValue(settings(), input, nullptr,
  75                                      Value(nullptr, "value"), &err);
  76   EXPECT_FALSE(err.has_error());
  77   EXPECT_EQ(Value::STRING, result.type());
  78   EXPECT_EQ("str", result.string_value());
  79 }
  80
  81 TEST_F(InputConversionTest, ValueInt) {
  82   Err err;
  83   std::string input("\n\n  6 \n ");
  84   Value result = ConvertInputToValue(settings(), input, nullptr,
  85                                      Value(nullptr, "value"), &err);
  86   EXPECT_FALSE(err.has_error());
  87   EXPECT_EQ(Value::INTEGER, result.type());
  88   EXPECT_EQ(6, result.int_value());
  89 }
  90
  91 TEST_F(InputConversionTest, ValueList) {
  92   Err err;
  93   std::string input("\n [ \"a\", 5]");
  94   Value result = ConvertInputToValue(settings(), input, nullptr,
  95                                      Value(nullptr, "value"), &err);
  96   EXPECT_FALSE(err.has_error());
  97   ASSERT_EQ(Value::LIST, result.type());
  98   ASSERT_EQ(2u, result.list_value().size());
  99   EXPECT_EQ("a", result.list_value()[0].string_value());
 100   EXPECT_EQ(5,   result.list_value()[1].int_value());
 101 }
 102
 103 TEST_F(InputConversionTest, ValueDict) {
 104   Err err;
 105   std::string input("\n a = 5 b = \"foo\" c = a + 2");
 106   Value result = ConvertInputToValue(settings(), input, nullptr,
 107                                      Value(nullptr, "scope"), &err);
 108   EXPECT_FALSE(err.has_error());
 109   ASSERT_EQ(Value::SCOPE, result.type());
 110
 111   const Value* a_value = result.scope_value()->GetValue("a");
 112   ASSERT_TRUE(a_value);
 113   EXPECT_EQ(5, a_value->int_value());
 114
 115   const Value* b_value = result.scope_value()->GetValue("b");
 116   ASSERT_TRUE(b_value);
 117   EXPECT_EQ("foo", b_value->string_value());
 118
 119   const Value* c_value = result.scope_value()->GetValue("c");
 120   ASSERT_TRUE(c_value);
 121   EXPECT_EQ(7, c_value->int_value());
 122
 123   // Tests that when we get Values out of the input conversion, the resulting
 124   // values have an origin set to something corresponding to the input.
 125   const ParseNode* a_origin = a_value->origin();
 126   ASSERT_TRUE(a_origin);
 127   LocationRange a_range = a_origin->GetRange();
 128   EXPECT_EQ(2, a_range.begin().line_number());
 129   EXPECT_EQ(6, a_range.begin().char_offset());
 130
 131   const InputFile* a_file = a_range.begin().file();
 132   EXPECT_EQ(input, a_file->contents());
 133 }
 134
 135 TEST_F(InputConversionTest, ValueEmpty) {
 136   Err err;
 137   Value result = ConvertInputToValue(settings(), "", nullptr,
 138                                      Value(nullptr, "value"), &err);
 139   EXPECT_FALSE(err.has_error());
 140   EXPECT_EQ(Value::NONE, result.type());
 141 }
 142
 143 TEST_F(InputConversionTest, ValueError) {
 144   static const char* const kTests[] = {
 145       "\n [ \"a\", 5\nfoo bar",
 146
 147       // Blocks not allowed.
 148       "{ foo = 5 }",
 149
 150       // Function calls not allowed.
 151       "print(5)",
 152
 153       // Trailing junk not allowed.
 154       "233105-1",
 155
 156       // Non-literals hidden in arrays are not allowed.
 157       "[233105 - 1]",
 158       "[rebase_path(\"//\")]",
 159   };
 160
 161   for (auto test : kTests) {
 162     Err err;
 163     std::string input(test);
 164     Value result = ConvertInputToValue(settings(), input, nullptr,
 165                                        Value(nullptr, "value"), &err);
 166     EXPECT_TRUE(err.has_error()) << test;
 167   }
 168 }
 169
 170 // Passing none or the empty string for input conversion should ignore the
 171 // result.
 172 TEST_F(InputConversionTest, Ignore) {
 173   Err err;
 174   Value result = ConvertInputToValue(settings(), "foo", nullptr, Value(), &err);
 175   EXPECT_FALSE(err.has_error());
 176   EXPECT_EQ(Value::NONE, result.type());
 177
 178   result =
 179       ConvertInputToValue(settings(), "foo", nullptr, Value(nullptr, ""), &err);
 180   EXPECT_FALSE(err.has_error());
 181   EXPECT_EQ(Value::NONE, result.type());
 182 }