Chrome OS: avoid suspending on lid close when casting is active.

chromeos/display/output_configurator_unittest.cc

 // Copyright (c) 2012 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 "chromeos/display/output_configurator.h"
 
 #include <cmath>
 #include <cstdarg>
 #include <map>
 #include <string>
@@ skipping 769 matching lines @@
                         GetCrtcAction(outputs_[1].crtc, 0,
                             kSmallModeHeight + OutputConfigurator::kVerticalGap,
                             kBigModeId, outputs_[1].output).c_str(),
                         kForceDPMS, kUngrab, NULL),
             delegate_->GetActionsAndClear());
   EXPECT_EQ(STATE_DUAL_EXTENDED, configurator_.output_state());
   EXPECT_TRUE(mirroring_controller_.software_mirroring_enabled());
   EXPECT_EQ(1, observer_.num_changes());
 }
 
+TEST_F(OutputConfiguratorTest, Casting) {
+  InitWithSingleOutput();
+
+  // Notify configurator that casting session is started.
+  configurator_.OnCastingSessionStartedOrStopped(true);
+  EXPECT_EQ(kProjectingOn, delegate_->GetActionsAndClear());
+
+  // Verify that the configurator keeps a count of active casting sessions
+  // instead of treating it as a single global state.
+  configurator_.OnCastingSessionStartedOrStopped(true);
+  EXPECT_EQ(kProjectingOn, delegate_->GetActionsAndClear());
+  configurator_.OnCastingSessionStartedOrStopped(false);
+  EXPECT_EQ(kProjectingOn, delegate_->GetActionsAndClear());
+
+  // Turn all displays off and check that projecting is not turned off.
+  configurator_.SetDisplayPower(DISPLAY_POWER_ALL_OFF,
+                                OutputConfigurator::kSetDisplayPowerNoFlags);
+  EXPECT_EQ(JoinActions(kGrab,
+                        GetFramebufferAction(kSmallModeWidth, kSmallModeHeight,
+                            outputs_[0].crtc, 0).c_str(),
+                        GetCrtcAction(outputs_[0].crtc, 0, 0, 0,
+                            outputs_[0].output).c_str(),
+                        kUngrab, NULL),
+            delegate_->GetActionsAndClear());
+
+  // Turn all displays back on.
+  configurator_.SetDisplayPower(DISPLAY_POWER_ALL_ON,
+                                OutputConfigurator::kSetDisplayPowerNoFlags);
+  EXPECT_EQ(JoinActions(kGrab,
+                        GetFramebufferAction(kSmallModeWidth, kSmallModeHeight,
+                            outputs_[0].crtc, 0).c_str(),
+                        GetCrtcAction(outputs_[0].crtc, 0, 0, kSmallModeId,
+                            outputs_[0].output).c_str(),
+                        kForceDPMS, kUngrab, NULL),
+            delegate_->GetActionsAndClear());
+
+  // Notify configurator that casting session is ended.
+  configurator_.OnCastingSessionStartedOrStopped(false);
+  EXPECT_EQ(kProjectingOff, delegate_->GetActionsAndClear());
+}
+
 TEST_F(OutputConfiguratorTest, SuspendAndResume) {
   InitWithSingleOutput();
 
   // No preparation is needed before suspending when the display is already
   // on.  The configurator should still reprobe on resume in case a display
   // was connected while suspended.
   configurator_.SuspendDisplays();
   EXPECT_EQ(kNoActions, delegate_->GetActionsAndClear());
   configurator_.ResumeDisplays();
   EXPECT_EQ(JoinActions(kGrab,
@@ skipping 598 matching lines @@
                         GetCrtcAction(outputs_[1].crtc, 0,
                             outputs_[1].mode_infos[kFirstMode].height +
                               OutputConfigurator::kVerticalGap, kFirstMode + 3,
                             outputs_[1].output).c_str(),
                         kUngrab, kProjectingOn, NULL),
             delegate_->GetActionsAndClear());
 
 }
 
 }  // namespace chromeos