Index: tools/gn/function_forward_variables_from_unittest.cc |
diff --git a/tools/gn/function_forward_variables_from_unittest.cc b/tools/gn/function_forward_variables_from_unittest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c3dd715f4f1a8dc11585ddbe8fc08bcfcdeac791 |
--- /dev/null |
+++ b/tools/gn/function_forward_variables_from_unittest.cc |
@@ -0,0 +1,108 @@ |
+// Copyright 2015 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 "testing/gtest/include/gtest/gtest.h" |
+#include "tools/gn/scheduler.h" |
+#include "tools/gn/test_with_scope.h" |
+ |
+TEST(FunctionForwardVariablesFrom, List) { |
+ Scheduler scheduler; |
+ TestWithScope setup; |
+ |
+ // Defines a template and copy the two x and y, and z values out. |
+ TestParseInput input( |
+ "template(\"a\") {\n" |
+ " forward_variables_from(invoker, [\"x\", \"y\", \"z\"])\n" |
+ " assert(!defined(z))\n" // "z" should still be undefined. |
+ " print(\"$target_name, $x, $y\")\n" |
+ "}\n" |
+ "a(\"target\") {\n" |
+ " x = 1\n" |
+ " y = 2\n" |
+ "}\n"); |
+ |
+ ASSERT_FALSE(input.has_error()); |
+ |
+ Err err; |
+ input.parsed()->Execute(setup.scope(), &err); |
+ ASSERT_FALSE(err.has_error()) << err.message(); |
+ |
+ EXPECT_EQ("target, 1, 2\n", setup.print_output()); |
+ setup.print_output().clear(); |
+} |
+ |
+TEST(FunctionForwardVariablesFrom, ErrorCases) { |
+ Scheduler scheduler; |
+ TestWithScope setup; |
+ |
+ // Type check the source scope. |
+ TestParseInput invalid_source( |
+ "template(\"a\") {\n" |
+ " forward_variables_from(42, [\"x\"])\n" |
+ " print(\"$target_name\")\n" // Prevent unused var error. |
+ "}\n" |
+ "a(\"target\") {\n" |
+ "}\n"); |
+ ASSERT_FALSE(invalid_source.has_error()); |
+ Err err; |
+ invalid_source.parsed()->Execute(setup.scope(), &err); |
+ EXPECT_TRUE(err.has_error()); |
+ EXPECT_EQ("Expected an identifier for the scope.", err.message()); |
+ |
+ // Type check the list. We need to use a new template name each time since |
+ // all of these invocations are executing in sequence in the same scope. |
+ TestParseInput invalid_list( |
+ "template(\"b\") {\n" |
+ " forward_variables_from(invoker, 42)\n" |
+ " print(\"$target_name\")\n" |
+ "}\n" |
+ "b(\"target\") {\n" |
+ "}\n"); |
+ ASSERT_FALSE(invalid_list.has_error()); |
+ err = Err(); |
+ invalid_list.parsed()->Execute(setup.scope(), &err); |
+ EXPECT_TRUE(err.has_error()); |
+ EXPECT_EQ("Not a valid list of variables to copy.", err.message()); |
+ |
+ // Programmatic values should error. |
+ TestParseInput prog( |
+ "template(\"c\") {\n" |
+ " forward_variables_from(invoker, [\"root_out_dir\"])\n" |
+ " print(\"$target_name\")\n" |
+ "}\n" |
+ "c(\"target\") {\n" |
+ "}\n"); |
+ ASSERT_FALSE(prog.has_error()); |
+ err = Err(); |
+ prog.parsed()->Execute(setup.scope(), &err); |
+ EXPECT_TRUE(err.has_error()); |
+ EXPECT_EQ("This value can't be forwarded.", err.message()); |
+} |
+ |
+TEST(FunctionForwardVariablesFrom, Star) { |
+ Scheduler scheduler; |
+ TestWithScope setup; |
+ |
+ // Defines a template and copy the two x and y values out. The "*" behavior |
+ // should clobber existing variables with the same name. |
+ TestParseInput input( |
+ "template(\"a\") {\n" |
+ " x = 1000000\n" // Should be clobbered. |
+ " forward_variables_from(invoker, \"*\")\n" |
+ " print(\"$target_name, $x, $y\")\n" |
+ "}\n" |
+ "a(\"target\") {\n" |
+ " x = 1\n" |
+ " y = 2\n" |
+ "}\n"); |
+ |
+ ASSERT_FALSE(input.has_error()); |
+ |
+ Err err; |
+ input.parsed()->Execute(setup.scope(), &err); |
+ ASSERT_FALSE(err.has_error()) << err.message(); |
+ |
+ EXPECT_EQ("target, 1, 2\n", setup.print_output()); |
+ setup.print_output().clear(); |
+} |