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      1 // Copyright (c) 2012 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 <string>
      6 
      7 #include "base/basictypes.h"
      8 #include "remoting/base/constants.h"
      9 #include "testing/gtest/include/gtest/gtest.h"
     10 
     11 // X11 headers must be #included after gtest.h, since the X11 headers define
     12 // some macros that cause errors in gtest-type-util.h.
     13 #include <X11/Xlib.h>
     14 #include "remoting/host/linux/x_server_clipboard.h"
     15 
     16 namespace remoting {
     17 
     18 namespace {
     19 
     20 class ClipboardTestClient {
     21  public:
     22   ClipboardTestClient() : display_(NULL) {}
     23   ~ClipboardTestClient() {}
     24 
     25   void Init(Display* display) {
     26     display_ = display;
     27     clipboard_.Init(display,
     28                     base::Bind(&ClipboardTestClient::OnClipboardChanged,
     29                                base::Unretained(this)));
     30   }
     31 
     32   void SetClipboardData(const std::string& clipboard_data) {
     33     clipboard_data_ = clipboard_data;
     34     clipboard_.SetClipboard(kMimeTypeTextUtf8, clipboard_data);
     35   }
     36 
     37   void OnClipboardChanged(const std::string& mime_type,
     38                           const std::string& data) {
     39     clipboard_data_ = data;
     40   }
     41 
     42   // Process X events on the connection, returning true if any events were
     43   // processed.
     44   bool PumpXEvents() {
     45     bool result = false;
     46     while (XPending(display_)) {
     47       XEvent event;
     48       XNextEvent(display_, &event);
     49       clipboard_.ProcessXEvent(&event);
     50       result = true;
     51     }
     52     return result;
     53   }
     54 
     55   const std::string& clipboard_data() const { return clipboard_data_; }
     56   Display* display() const { return display_; }
     57 
     58  private:
     59   std::string clipboard_data_;
     60   XServerClipboard clipboard_;
     61   Display* display_;
     62 
     63   DISALLOW_COPY_AND_ASSIGN(ClipboardTestClient);
     64 };
     65 
     66 }  // namespace
     67 
     68 class XServerClipboardTest : public testing::Test {
     69  public:
     70   virtual void SetUp() OVERRIDE {
     71     // XSynchronize() ensures that PumpXEvents() fully processes all X server
     72     // requests and responses before returning to the caller.
     73     Display* display1 = XOpenDisplay(NULL);
     74     XSynchronize(display1, True);
     75     client1_.Init(display1);
     76     Display* display2 = XOpenDisplay(NULL);
     77     XSynchronize(display2, True);
     78     client2_.Init(display2);
     79   }
     80 
     81   virtual void TearDown() OVERRIDE {
     82     XCloseDisplay(client1_.display());
     83     XCloseDisplay(client2_.display());
     84   }
     85 
     86   void PumpXEvents() {
     87     while (true) {
     88       if (!client1_.PumpXEvents() && !client2_.PumpXEvents()) {
     89         break;
     90       }
     91     }
     92   }
     93 
     94   ClipboardTestClient client1_;
     95   ClipboardTestClient client2_;
     96 };
     97 
     98 // http://crbug.com/163428
     99 TEST_F(XServerClipboardTest, DISABLED_CopyPaste) {
    100   // Verify clipboard data can be transferred more than once. Then verify that
    101   // the code continues to function in the opposite direction (so client1_ will
    102   // send then receive, and client2_ will receive then send).
    103   client1_.SetClipboardData("Text1");
    104   PumpXEvents();
    105   EXPECT_EQ("Text1", client2_.clipboard_data());
    106 
    107   client1_.SetClipboardData("Text2");
    108   PumpXEvents();
    109   EXPECT_EQ("Text2", client2_.clipboard_data());
    110 
    111   client2_.SetClipboardData("Text3");
    112   PumpXEvents();
    113   EXPECT_EQ("Text3", client1_.clipboard_data());
    114 
    115   client2_.SetClipboardData("Text4");
    116   PumpXEvents();
    117   EXPECT_EQ("Text4", client1_.clipboard_data());
    118 }
    119 
    120 }  // namespace remoting
    121