Re-sync ios/web with downstream version

ios/web/navigation/navigation_item_impl_unittest.mm

 // 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 "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/strings/sys_string_conversions.h"
 #include "ios/web/navigation/navigation_item_impl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/gtest_mac.h"
 #include "testing/platform_test.h"
 
 namespace web {
 namespace {
 
+static NSString* const kHTTPHeaderKey1 = @"key1";
+static NSString* const kHTTPHeaderKey2 = @"key2";
+static NSString* const kHTTPHeaderValue1 = @"value1";
+static NSString* const kHTTPHeaderValue2 = @"value2";
+
 class NavigationItemTest : public PlatformTest {
  protected:
-  void SetUp() override { item_.reset(new NavigationItemImpl()); }
+  void SetUp() override {
+    item_.reset(new web::NavigationItemImpl());
+    item_->SetURL(GURL("http://init.test"));
+    item_->SetTransitionType(ui::PAGE_TRANSITION_AUTO_BOOKMARK);
+    item_->SetTimestamp(base::Time::Now());
+    item_->AddHttpRequestHeaders(@{kHTTPHeaderKey1 : kHTTPHeaderValue1});
+    item_->SetPostData([@"Test data" dataUsingEncoding:NSUTF8StringEncoding]);
+  }
 
+  // The NavigationItemImpl instance being tested.
   scoped_ptr<NavigationItemImpl> item_;
 };
 
 // TODO(rohitrao): Add and adapt tests from NavigationEntryImpl.
 TEST_F(NavigationItemTest, Dummy) {
   const GURL url("http://init.test");
   item_->SetURL(url);
   EXPECT_TRUE(item_->GetURL().is_valid());
 }
 
+// Tests that copied NavigationItemImpls create copies of data members that are
+// objects.
+TEST_F(NavigationItemTest, Copy) {
+  // Create objects to be copied.
+  NSString* postData0 = @"postData0";
+  NSMutableData* mutablePostData =
+      [[postData0 dataUsingEncoding:NSUTF8StringEncoding] mutableCopy];
+  item_->SetPostData(mutablePostData);
+  NSString* state0 = @"state0";
+  NSMutableString* mutableState = [state0 mutableCopy];
+  item_->SetSerializedStateObject(mutableState);
+
+  // Create copy.
+  web::NavigationItemImpl copy(*item_.get());
+
+  // Modify the objects.
+  NSString* postData1 = @"postData1";
+  [mutablePostData setData:[postData1 dataUsingEncoding:NSUTF8StringEncoding]];
+  NSString* state1 = @"state1";
+  [mutableState setString:state1];
+
+  // Check that changes occurred in |item_|, but not in |copy|.
+  EXPECT_NSEQ([postData1 dataUsingEncoding:NSUTF8StringEncoding],
+              item_->GetPostData());
+  EXPECT_NSEQ(state1, item_->GetSerializedStateObject());
+  EXPECT_NSEQ([postData0 dataUsingEncoding:NSUTF8StringEncoding],
+              copy.GetPostData());
+  EXPECT_NSEQ(state0, copy.GetSerializedStateObject());
+}
+
+// Tests whether |NavigationItem::AddHttpRequestHeaders()| adds the passed
+// headers to the item's request http headers.
+TEST_F(NavigationItemTest, AddHttpRequestHeaders) {
+  EXPECT_NSEQ(@{kHTTPHeaderKey1 : kHTTPHeaderValue1},
+              item_->GetHttpRequestHeaders());
+
+  item_->AddHttpRequestHeaders(@{kHTTPHeaderKey1 : kHTTPHeaderValue2});
+  EXPECT_NSEQ(@{kHTTPHeaderKey1 : kHTTPHeaderValue2},
+              item_->GetHttpRequestHeaders());
+
+  item_->AddHttpRequestHeaders(@{kHTTPHeaderKey2 : kHTTPHeaderValue1});
+  NSDictionary* expected = @{
+    kHTTPHeaderKey1 : kHTTPHeaderValue2,
+    kHTTPHeaderKey2 : kHTTPHeaderValue1
+  };
+  EXPECT_NSEQ(expected, item_->GetHttpRequestHeaders());
+}
+
+// Tests whether |NavigationItem::AddHttpRequestHeaders()| removes the header
+// value associated with the passed key from the item's request http headers.
+TEST_F(NavigationItemTest, RemoveHttpRequestHeaderForKey) {
+  NSDictionary* httpHeaders = @{
+    kHTTPHeaderKey1 : kHTTPHeaderValue1,
+    kHTTPHeaderKey2 : kHTTPHeaderValue2
+  };
+  item_->AddHttpRequestHeaders(httpHeaders);
+  EXPECT_NSEQ(httpHeaders, item_->GetHttpRequestHeaders());
+
+  item_->RemoveHttpRequestHeaderForKey(kHTTPHeaderKey1);
+  EXPECT_NSEQ(@{kHTTPHeaderKey2 : kHTTPHeaderValue2},
+              item_->GetHttpRequestHeaders());
+
+  item_->RemoveHttpRequestHeaderForKey(kHTTPHeaderKey2);
+  EXPECT_FALSE(item_->GetHttpRequestHeaders());
+}
+
 }  // namespace
 }  // namespace web