mojo: Switch the clipboard interface over to using map<>.

mojo/public/cpp/bindings/tests/map_unittest.cc

 // Copyright 2014 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 "mojo/public/cpp/bindings/array.h"
 #include "mojo/public/cpp/bindings/lib/array_serialization.h"
 #include "mojo/public/cpp/bindings/lib/bindings_internal.h"
 #include "mojo/public/cpp/bindings/lib/fixed_buffer.h"
 #include "mojo/public/cpp/bindings/map.h"
 #include "mojo/public/cpp/bindings/string.h"
@@ skipping 32 matching lines @@
   Map<String, int> map;
   for (size_t i = 0; i < kStringIntDataSize; ++i)
     map.insert(kStringIntData[i].string_data, kStringIntData[i].int_data);
 
   for (size_t i = 0; i < kStringIntDataSize; ++i) {
     EXPECT_EQ(kStringIntData[i].int_data,
               map.at(kStringIntData[i].string_data));
   }
 }
 
+TEST_F(MapTest, TestIndexOperator) {
+  Map<String, int> map;
+  for (size_t i = 0; i < kStringIntDataSize; ++i)
+    map[kStringIntData[i].string_data] = kStringIntData[i].int_data;

[viettrungluu, 2014/10/15 23:54:06]

Two things:
- maybe test map[foo] when used strictly as an rvalue (right now, for all I know
map[foo] always clears the value at foo; possibly, you could test this by using
map[...] in the EXPECT_EQ below, though it's not entirely satisfactory)
- test with move-only values

+
+  for (size_t i = 0; i < kStringIntDataSize; ++i) {
+    EXPECT_EQ(kStringIntData[i].int_data,
+              map.at(kStringIntData[i].string_data));
+  }
+}
+
 TEST_F(MapTest, ConstructedFromArray) {
   Array<String> keys(kStringIntDataSize);
   Array<int> values(kStringIntDataSize);
   for (size_t i = 0; i < kStringIntDataSize; ++i) {
     keys[i] = kStringIntData[i].string_data;
     values[i] = kStringIntData[i].int_data;
   }
 
   Map<String, int> map(keys.Pass(), values.Pass());
 
@@ skipping 266 matching lines @@
 
   ASSERT_EQ(1u, to_receive->second.size());
   ASSERT_EQ(1u, to_receive->second[0].size());
   ASSERT_FALSE(to_receive->second[0].at("hello world")[0]);
   ASSERT_TRUE(to_receive->second[0].at("hello world")[1]);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo