remoting/host/linux/x_server_clipboard_unittest.cc

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