Add more layer state changes to SurfaceInterceptor

Track flag set and clear state changes.
Track reparenting, detach children and relative z changes.

Test: run surface interceptor and view results
Test: atest SurfaceFlinger_test:SurfaceInterceptorTest#*
Change-Id: I0c55e6d45034e180a3c8970c60af21bf8f2bb01c
diff --git a/cmds/surfacereplayer/proto/src/trace.proto b/cmds/surfacereplayer/proto/src/trace.proto
index c70bc3e..a738527 100644
--- a/cmds/surfacereplayer/proto/src/trace.proto
+++ b/cmds/surfacereplayer/proto/src/trace.proto
@@ -46,6 +46,10 @@
         SecureFlagChange            secure_flag             = 14;
         DeferredTransactionChange   deferred_transaction    = 15;
         CornerRadiusChange          corner_radius           = 16;
+        ReparentChange              reparent                = 17;
+        RelativeParentChange        relative_parent         = 18;
+        DetachChildrenChange        detach_children         = 19;
+        ReparentChildrenChange      reparent_children       = 20;
     }
 }
 
@@ -177,3 +181,20 @@
     required int32  id   = 1;
     required int32  mode = 2;
 }
+
+message ReparentChange {
+    required int32 parent_id = 1;
+}
+
+message ReparentChildrenChange {
+    required int32 parent_id = 1;
+}
+
+message RelativeParentChange {
+    required int32 relative_parent_id = 1;
+    required int32 z = 2;
+}
+
+message DetachChildrenChange {
+    required bool detach_children = 1;
+}
diff --git a/cmds/surfacereplayer/replayer/Replayer.cpp b/cmds/surfacereplayer/replayer/Replayer.cpp
index 34886a9..a4a9b6a 100644
--- a/cmds/surfacereplayer/replayer/Replayer.cpp
+++ b/cmds/surfacereplayer/replayer/Replayer.cpp
@@ -412,6 +412,18 @@
                 setDeferredTransaction(transaction, change.id(),
                         change.deferred_transaction());
                 break;
+            case SurfaceChange::SurfaceChangeCase::kReparent:
+                setReparentChange(transaction, change.id(), change.reparent());
+                break;
+            case SurfaceChange::SurfaceChangeCase::kReparentChildren:
+                setReparentChildrenChange(transaction, change.id(), change.reparent_children());
+                break;
+            case SurfaceChange::SurfaceChangeCase::kRelativeParent:
+                setRelativeParentChange(transaction, change.id(), change.relative_parent());
+                break;
+            case SurfaceChange::SurfaceChangeCase::kDetachChildren:
+                setDetachChildrenChange(transaction, change.id(), change.detach_children());
+                break;
             default:
                 status = 1;
                 break;
@@ -680,3 +692,35 @@
     mComposerClient = new SurfaceComposerClient;
     return mComposerClient->initCheck();
 }
+
+void Replayer::setReparentChange(SurfaceComposerClient::Transaction& t,
+        layer_id id, const ReparentChange& c) {
+    sp<IBinder> newParentHandle = nullptr;
+    if (mLayers.count(c.parent_id()) != 0 && mLayers[c.parent_id()] != nullptr) {
+        newParentHandle = mLayers[c.parent_id()]->getHandle();
+    }
+    t.reparent(mLayers[id], newParentHandle);
+}
+
+void Replayer::setRelativeParentChange(SurfaceComposerClient::Transaction& t,
+        layer_id id, const RelativeParentChange& c) {
+    if (mLayers.count(c.relative_parent_id()) == 0 || mLayers[c.relative_parent_id()] == nullptr) {
+        ALOGE("Layer %d not found in set relative parent transaction", c.relative_parent_id());
+        return;
+    }
+    t.setRelativeLayer(mLayers[id], mLayers[c.relative_parent_id()]->getHandle(), c.z());
+}
+
+void Replayer::setDetachChildrenChange(SurfaceComposerClient::Transaction& t,
+        layer_id id, const DetachChildrenChange& c) {
+    t.detachChildren(mLayers[id]);
+}
+
+void Replayer::setReparentChildrenChange(SurfaceComposerClient::Transaction& t,
+        layer_id id, const ReparentChildrenChange& c) {
+    if (mLayers.count(c.parent_id()) == 0 || mLayers[c.parent_id()] == nullptr) {
+        ALOGE("Layer %d not found in reparent children transaction", c.parent_id());
+        return;
+    }
+    t.reparentChildren(mLayers[id], mLayers[c.parent_id()]->getHandle());
+}
diff --git a/cmds/surfacereplayer/replayer/Replayer.h b/cmds/surfacereplayer/replayer/Replayer.h
index ad807ee..d7709cc 100644
--- a/cmds/surfacereplayer/replayer/Replayer.h
+++ b/cmds/surfacereplayer/replayer/Replayer.h
@@ -108,6 +108,14 @@
             layer_id id, const SecureFlagChange& sfc);
     void setDeferredTransaction(SurfaceComposerClient::Transaction& t,
             layer_id id, const DeferredTransactionChange& dtc);
+    void setReparentChange(SurfaceComposerClient::Transaction& t,
+            layer_id id, const ReparentChange& c);
+    void setRelativeParentChange(SurfaceComposerClient::Transaction& t,
+            layer_id id, const RelativeParentChange& c);
+    void setDetachChildrenChange(SurfaceComposerClient::Transaction& t,
+            layer_id id, const DetachChildrenChange& c);
+    void setReparentChildrenChange(SurfaceComposerClient::Transaction& t,
+            layer_id id, const ReparentChildrenChange& c);
 
     void setDisplaySurface(SurfaceComposerClient::Transaction& t,
             display_id id, const DispSurfaceChange& dsc);
diff --git a/services/surfaceflinger/SurfaceInterceptor.cpp b/services/surfaceflinger/SurfaceInterceptor.cpp
index 7bfe033..a02d14c 100644
--- a/services/surfaceflinger/SurfaceInterceptor.cpp
+++ b/services/surfaceflinger/SurfaceInterceptor.cpp
@@ -116,7 +116,14 @@
                                   layer->mCurrentState.frameNumber_legacy);
     }
     addOverrideScalingModeLocked(transaction, layerId, layer->getEffectiveScalingMode());
-    addFlagsLocked(transaction, layerId, layer->mCurrentState.flags);
+    addFlagsLocked(transaction, layerId, layer->mCurrentState.flags,
+                   layer_state_t::eLayerHidden | layer_state_t::eLayerOpaque |
+                           layer_state_t::eLayerSecure);
+    addReparentLocked(transaction, layerId, getLayerIdFromWeakRef(layer->mCurrentParent));
+    addDetachChildrenLocked(transaction, layerId, layer->isLayerDetached());
+    addRelativeParentLocked(transaction, layerId,
+                            getLayerIdFromWeakRef(layer->mCurrentState.zOrderRelativeOf),
+                            layer->mCurrentState.z);
 }
 
 void SurfaceInterceptor::addInitialDisplayStateLocked(Increment* increment,
@@ -150,7 +157,7 @@
     return NO_ERROR;
 }
 
-const sp<const Layer> SurfaceInterceptor::getLayer(const wp<const IBinder>& weakHandle) {
+const sp<const Layer> SurfaceInterceptor::getLayer(const wp<const IBinder>& weakHandle) const {
     const sp<const IBinder>& handle(weakHandle.promote());
     const auto layerHandle(static_cast<const Layer::Handle*>(handle.get()));
     const sp<const Layer> layer(layerHandle->owner.promote());
@@ -158,14 +165,31 @@
     return layer;
 }
 
-const std::string SurfaceInterceptor::getLayerName(const sp<const Layer>& layer) {
+const std::string SurfaceInterceptor::getLayerName(const sp<const Layer>& layer) const {
     return layer->getName().string();
 }
 
-int32_t SurfaceInterceptor::getLayerId(const sp<const Layer>& layer) {
+int32_t SurfaceInterceptor::getLayerId(const sp<const Layer>& layer) const {
     return layer->sequence;
 }
 
+int32_t SurfaceInterceptor::getLayerIdFromWeakRef(const wp<const Layer>& layer) const {
+    if (layer == nullptr) {
+        return -1;
+    }
+    auto strongLayer = layer.promote();
+    return strongLayer == nullptr ? -1 : getLayerId(strongLayer);
+}
+
+int32_t SurfaceInterceptor::getLayerIdFromHandle(const sp<const IBinder>& handle) const {
+    if (handle == nullptr) {
+        return -1;
+    }
+    const auto layerHandle(static_cast<const Layer::Handle*>(handle.get()));
+    const sp<const Layer> layer(layerHandle->owner.promote());
+    return layer == nullptr ? -1 : getLayerId(layer);
+}
+
 Increment* SurfaceInterceptor::createTraceIncrementLocked() {
     Increment* increment(mTrace.add_increment());
     increment->set_time_stamp(systemTime());
@@ -252,24 +276,23 @@
     }
 }
 
-void SurfaceInterceptor::addFlagsLocked(Transaction* transaction, int32_t layerId,
-        uint8_t flags)
-{
+void SurfaceInterceptor::addFlagsLocked(Transaction* transaction, int32_t layerId, uint8_t flags,
+                                        uint8_t mask) {
     // There can be multiple flags changed
-    if (flags & layer_state_t::eLayerHidden) {
+    if (mask & layer_state_t::eLayerHidden) {
         SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
         HiddenFlagChange* flagChange(change->mutable_hidden_flag());
-        flagChange->set_hidden_flag(true);
+        flagChange->set_hidden_flag(flags & layer_state_t::eLayerHidden);
     }
-    if (flags & layer_state_t::eLayerOpaque) {
+    if (mask & layer_state_t::eLayerOpaque) {
         SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
         OpaqueFlagChange* flagChange(change->mutable_opaque_flag());
-        flagChange->set_opaque_flag(true);
+        flagChange->set_opaque_flag(flags & layer_state_t::eLayerOpaque);
     }
-    if (flags & layer_state_t::eLayerSecure) {
+    if (mask & layer_state_t::eLayerSecure) {
         SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
         SecureFlagChange* flagChange(change->mutable_secure_flag());
-        flagChange->set_secure_flag(true);
+        flagChange->set_secure_flag(flags & layer_state_t::eLayerSecure);
     }
 }
 
@@ -320,6 +343,35 @@
     overrideChange->set_override_scaling_mode(overrideScalingMode);
 }
 
+void SurfaceInterceptor::addReparentLocked(Transaction* transaction, int32_t layerId,
+                                           int32_t parentId) {
+    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
+    ReparentChange* overrideChange(change->mutable_reparent());
+    overrideChange->set_parent_id(parentId);
+}
+
+void SurfaceInterceptor::addReparentChildrenLocked(Transaction* transaction, int32_t layerId,
+                                                   int32_t parentId) {
+    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
+    ReparentChildrenChange* overrideChange(change->mutable_reparent_children());
+    overrideChange->set_parent_id(parentId);
+}
+
+void SurfaceInterceptor::addDetachChildrenLocked(Transaction* transaction, int32_t layerId,
+                                                 bool detached) {
+    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
+    DetachChildrenChange* overrideChange(change->mutable_detach_children());
+    overrideChange->set_detach_children(detached);
+}
+
+void SurfaceInterceptor::addRelativeParentLocked(Transaction* transaction, int32_t layerId,
+                                                 int32_t parentId, int z) {
+    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
+    RelativeParentChange* overrideChange(change->mutable_relative_parent());
+    overrideChange->set_relative_parent_id(parentId);
+    overrideChange->set_z(z);
+}
+
 void SurfaceInterceptor::addSurfaceChangesLocked(Transaction* transaction,
         const layer_state_t& state)
 {
@@ -351,7 +403,7 @@
         addTransparentRegionLocked(transaction, layerId, state.transparentRegion);
     }
     if (state.what & layer_state_t::eFlagsChanged) {
-        addFlagsLocked(transaction, layerId, state.flags);
+        addFlagsLocked(transaction, layerId, state.flags, state.mask);
     }
     if (state.what & layer_state_t::eLayerStackChanged) {
         addLayerStackLocked(transaction, layerId, state.layerStack);
@@ -380,6 +432,19 @@
     if (state.what & layer_state_t::eOverrideScalingModeChanged) {
         addOverrideScalingModeLocked(transaction, layerId, state.overrideScalingMode);
     }
+    if (state.what & layer_state_t::eReparent) {
+        addReparentLocked(transaction, layerId, getLayerIdFromHandle(state.parentHandleForChild));
+    }
+    if (state.what & layer_state_t::eReparentChildren) {
+        addReparentChildrenLocked(transaction, layerId, getLayerIdFromHandle(state.reparentHandle));
+    }
+    if (state.what & layer_state_t::eDetachChildren) {
+        addDetachChildrenLocked(transaction, layerId, true);
+    }
+    if (state.what & layer_state_t::eRelativeLayerChanged) {
+        addRelativeParentLocked(transaction, layerId,
+                                getLayerIdFromHandle(state.relativeLayerHandle), state.z);
+    }
 }
 
 void SurfaceInterceptor::addDisplayChangesLocked(Transaction* transaction,
diff --git a/services/surfaceflinger/SurfaceInterceptor.h b/services/surfaceflinger/SurfaceInterceptor.h
index 563a44c..7f86c14 100644
--- a/services/surfaceflinger/SurfaceInterceptor.h
+++ b/services/surfaceflinger/SurfaceInterceptor.h
@@ -116,9 +116,11 @@
     void addInitialDisplayStateLocked(Increment* increment, const DisplayDeviceState& display);
 
     status_t writeProtoFileLocked();
-    const sp<const Layer> getLayer(const wp<const IBinder>& weakHandle);
-    const std::string getLayerName(const sp<const Layer>& layer);
-    int32_t getLayerId(const sp<const Layer>& layer);
+    const sp<const Layer> getLayer(const wp<const IBinder>& weakHandle) const;
+    const std::string getLayerName(const sp<const Layer>& layer) const;
+    int32_t getLayerId(const sp<const Layer>& layer) const;
+    int32_t getLayerIdFromWeakRef(const wp<const Layer>& layer) const;
+    int32_t getLayerIdFromHandle(const sp<const IBinder>& weakHandle) const;
 
     Increment* createTraceIncrementLocked();
     void addSurfaceCreationLocked(Increment* increment, const sp<const Layer>& layer);
@@ -141,7 +143,7 @@
             const layer_state_t::matrix22_t& matrix);
     void addTransparentRegionLocked(Transaction* transaction, int32_t layerId,
             const Region& transRegion);
-    void addFlagsLocked(Transaction* transaction, int32_t layerId, uint8_t flags);
+    void addFlagsLocked(Transaction* transaction, int32_t layerId, uint8_t flags, uint8_t mask);
     void addLayerStackLocked(Transaction* transaction, int32_t layerId, uint32_t layerStack);
     void addCropLocked(Transaction* transaction, int32_t layerId, const Rect& rect);
     void addCornerRadiusLocked(Transaction* transaction, int32_t layerId, float cornerRadius);
@@ -153,6 +155,11 @@
     void addTransactionLocked(Increment* increment, const Vector<ComposerState>& stateUpdates,
             const DefaultKeyedVector< wp<IBinder>, DisplayDeviceState>& displays,
             const Vector<DisplayState>& changedDisplays, uint32_t transactionFlags);
+    void addReparentLocked(Transaction* transaction, int32_t layerId, int32_t parentId);
+    void addReparentChildrenLocked(Transaction* transaction, int32_t layerId, int32_t parentId);
+    void addDetachChildrenLocked(Transaction* transaction, int32_t layerId, bool detached);
+    void addRelativeParentLocked(Transaction* transaction, int32_t layerId, int32_t parentId,
+                                 int z);
 
     // Add display transactions to the trace
     DisplayChange* createDisplayChangeLocked(Transaction* transaction, int32_t sequenceId);
diff --git a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp b/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
index 5cc946a..26c6da9 100644
--- a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
+++ b/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
@@ -43,14 +43,17 @@
 constexpr uint32_t SIZE_UPDATE = 134;
 constexpr uint32_t STACK_UPDATE = 1;
 constexpr uint64_t DEFERRED_UPDATE = 0;
+constexpr int32_t RELATIVE_Z = 42;
 constexpr float ALPHA_UPDATE = 0.29f;
 constexpr float CORNER_RADIUS_UPDATE = 0.2f;
 constexpr float POSITION_UPDATE = 121;
 const Rect CROP_UPDATE(16, 16, 32, 32);
 
 const String8 DISPLAY_NAME("SurfaceInterceptor Display Test");
-constexpr auto TEST_SURFACE_NAME = "BG Interceptor Test Surface";
-constexpr auto UNIQUE_TEST_SURFACE_NAME = "BG Interceptor Test Surface#0";
+constexpr auto TEST_BG_SURFACE_NAME = "BG Interceptor Test Surface";
+constexpr auto TEST_FG_SURFACE_NAME = "FG Interceptor Test Surface";
+constexpr auto UNIQUE_TEST_BG_SURFACE_NAME = "BG Interceptor Test Surface#0";
+constexpr auto UNIQUE_TEST_FG_SURFACE_NAME = "FG Interceptor Test Surface#0";
 constexpr auto LAYER_NAME = "Layer Create and Delete Test";
 constexpr auto UNIQUE_LAYER_NAME = "Layer Create and Delete Test#0";
 
@@ -136,12 +139,15 @@
     void TearDown() override {
         mComposerClient->dispose();
         mBGSurfaceControl.clear();
+        mFGSurfaceControl.clear();
         mComposerClient.clear();
     }
 
     sp<SurfaceComposerClient> mComposerClient;
     sp<SurfaceControl> mBGSurfaceControl;
+    sp<SurfaceControl> mFGSurfaceControl;
     int32_t mBGLayerId;
+    int32_t mFGLayerId;
 
 public:
     using TestTransactionAction = void (SurfaceInterceptorTest::*)(Transaction&);
@@ -177,6 +183,10 @@
     bool opaqueFlagUpdateFound(const SurfaceChange& change, bool foundOpaqueFlag);
     bool secureFlagUpdateFound(const SurfaceChange& change, bool foundSecureFlag);
     bool deferredTransactionUpdateFound(const SurfaceChange& change, bool foundDeferred);
+    bool reparentUpdateFound(const SurfaceChange& change, bool found);
+    bool relativeParentUpdateFound(const SurfaceChange& change, bool found);
+    bool detachChildrenUpdateFound(const SurfaceChange& change, bool found);
+    bool reparentChildrenUpdateFound(const SurfaceChange& change, bool found);
     bool surfaceUpdateFound(const Trace& trace, SurfaceChange::SurfaceChangeCase changeCase);
 
     // Find all of the updates in the single trace
@@ -209,6 +219,10 @@
     void opaqueFlagUpdate(Transaction&);
     void secureFlagUpdate(Transaction&);
     void deferredTransactionUpdate(Transaction&);
+    void reparentUpdate(Transaction&);
+    void relativeParentUpdate(Transaction&);
+    void detachChildrenUpdate(Transaction&);
+    void reparentChildrenUpdate(Transaction&);
     void surfaceCreation(Transaction&);
     void displayCreation(Transaction&);
     void displayDeletion(Transaction&);
@@ -250,21 +264,30 @@
     ssize_t displayHeight = info.h;
 
     // Background surface
-    mBGSurfaceControl = mComposerClient->createSurface(
-            String8(TEST_SURFACE_NAME), displayWidth, displayHeight,
-            PIXEL_FORMAT_RGBA_8888, 0);
+    mBGSurfaceControl = mComposerClient->createSurface(String8(TEST_BG_SURFACE_NAME), displayWidth,
+                                                       displayHeight, PIXEL_FORMAT_RGBA_8888, 0);
     ASSERT_TRUE(mBGSurfaceControl != nullptr);
     ASSERT_TRUE(mBGSurfaceControl->isValid());
 
+    // Foreground surface
+    mFGSurfaceControl = mComposerClient->createSurface(String8(TEST_FG_SURFACE_NAME), displayWidth,
+                                                       displayHeight, PIXEL_FORMAT_RGBA_8888, 0);
+    ASSERT_TRUE(mFGSurfaceControl != nullptr);
+    ASSERT_TRUE(mFGSurfaceControl->isValid());
+
     Transaction t;
     t.setDisplayLayerStack(display, 0);
-    ASSERT_EQ(NO_ERROR, t.setLayer(mBGSurfaceControl, INT_MAX-3)
-            .show(mBGSurfaceControl)
-            .apply());
+    ASSERT_EQ(NO_ERROR,
+              t.setLayer(mBGSurfaceControl, INT_MAX - 3)
+                      .show(mBGSurfaceControl)
+                      .setLayer(mFGSurfaceControl, INT_MAX - 3)
+                      .show(mFGSurfaceControl)
+                      .apply());
 }
 
 void SurfaceInterceptorTest::preProcessTrace(const Trace& trace) {
-    mBGLayerId = getSurfaceId(trace, UNIQUE_TEST_SURFACE_NAME);
+    mBGLayerId = getSurfaceId(trace, UNIQUE_TEST_BG_SURFACE_NAME);
+    mFGLayerId = getSurfaceId(trace, UNIQUE_TEST_FG_SURFACE_NAME);
 }
 
 void SurfaceInterceptorTest::captureTest(TestTransactionAction action,
@@ -364,6 +387,22 @@
                                    DEFERRED_UPDATE);
 }
 
+void SurfaceInterceptorTest::reparentUpdate(Transaction& t) {
+    t.reparent(mBGSurfaceControl, mFGSurfaceControl->getHandle());
+}
+
+void SurfaceInterceptorTest::relativeParentUpdate(Transaction& t) {
+    t.setRelativeLayer(mBGSurfaceControl, mFGSurfaceControl->getHandle(), RELATIVE_Z);
+}
+
+void SurfaceInterceptorTest::detachChildrenUpdate(Transaction& t) {
+    t.detachChildren(mBGSurfaceControl);
+}
+
+void SurfaceInterceptorTest::reparentChildrenUpdate(Transaction& t) {
+    t.reparentChildren(mBGSurfaceControl, mFGSurfaceControl->getHandle());
+}
+
 void SurfaceInterceptorTest::displayCreation(Transaction&) {
     sp<IBinder> testDisplay = SurfaceComposerClient::createDisplay(DISPLAY_NAME, true);
     SurfaceComposerClient::destroyDisplay(testDisplay);
@@ -389,6 +428,10 @@
     runInTransaction(&SurfaceInterceptorTest::opaqueFlagUpdate);
     runInTransaction(&SurfaceInterceptorTest::secureFlagUpdate);
     runInTransaction(&SurfaceInterceptorTest::deferredTransactionUpdate);
+    runInTransaction(&SurfaceInterceptorTest::reparentUpdate);
+    runInTransaction(&SurfaceInterceptorTest::reparentChildrenUpdate);
+    runInTransaction(&SurfaceInterceptorTest::detachChildrenUpdate);
+    runInTransaction(&SurfaceInterceptorTest::relativeParentUpdate);
 }
 
 void SurfaceInterceptorTest::surfaceCreation(Transaction&) {
@@ -569,6 +612,46 @@
     return foundDeferred;
 }
 
+bool SurfaceInterceptorTest::reparentUpdateFound(const SurfaceChange& change, bool found) {
+    bool hasId(change.reparent().parent_id() == mFGLayerId);
+    if (hasId && !found) {
+        found = true;
+    } else if (hasId && found) {
+        []() { FAIL(); }();
+    }
+    return found;
+}
+
+bool SurfaceInterceptorTest::relativeParentUpdateFound(const SurfaceChange& change, bool found) {
+    bool hasId(change.relative_parent().relative_parent_id() == mFGLayerId);
+    if (hasId && !found) {
+        found = true;
+    } else if (hasId && found) {
+        []() { FAIL(); }();
+    }
+    return found;
+}
+
+bool SurfaceInterceptorTest::detachChildrenUpdateFound(const SurfaceChange& change, bool found) {
+    bool detachChildren(change.detach_children().detach_children());
+    if (detachChildren && !found) {
+        found = true;
+    } else if (detachChildren && found) {
+        []() { FAIL(); }();
+    }
+    return found;
+}
+
+bool SurfaceInterceptorTest::reparentChildrenUpdateFound(const SurfaceChange& change, bool found) {
+    bool hasId(change.reparent_children().parent_id() == mFGLayerId);
+    if (hasId && !found) {
+        found = true;
+    } else if (hasId && found) {
+        []() { FAIL(); }();
+    }
+    return found;
+}
+
 bool SurfaceInterceptorTest::surfaceUpdateFound(const Trace& trace,
         SurfaceChange::SurfaceChangeCase changeCase) {
     bool foundUpdate = false;
@@ -620,6 +703,18 @@
                         case SurfaceChange::SurfaceChangeCase::kDeferredTransaction:
                             foundUpdate = deferredTransactionUpdateFound(change, foundUpdate);
                             break;
+                        case SurfaceChange::SurfaceChangeCase::kReparent:
+                            foundUpdate = reparentUpdateFound(change, foundUpdate);
+                            break;
+                        case SurfaceChange::SurfaceChangeCase::kReparentChildren:
+                            foundUpdate = reparentChildrenUpdateFound(change, foundUpdate);
+                            break;
+                        case SurfaceChange::SurfaceChangeCase::kRelativeParent:
+                            foundUpdate = relativeParentUpdateFound(change, foundUpdate);
+                            break;
+                        case SurfaceChange::SurfaceChangeCase::kDetachChildren:
+                            foundUpdate = detachChildrenUpdateFound(change, foundUpdate);
+                            break;
                         case SurfaceChange::SurfaceChangeCase::SURFACECHANGE_NOT_SET:
                             break;
                     }
@@ -644,6 +739,10 @@
     ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kOpaqueFlag));
     ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kSecureFlag));
     ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kDeferredTransaction));
+    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kReparent));
+    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kReparentChildren));
+    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kRelativeParent));
+    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kDetachChildren));
 }
 
 bool SurfaceInterceptorTest::surfaceCreationFound(const Increment& increment, bool foundSurface) {
@@ -798,6 +897,26 @@
             SurfaceChange::SurfaceChangeCase::kDeferredTransaction);
 }
 
+TEST_F(SurfaceInterceptorTest, InterceptReparentUpdateWorks) {
+    captureTest(&SurfaceInterceptorTest::reparentUpdate,
+                SurfaceChange::SurfaceChangeCase::kReparent);
+}
+
+TEST_F(SurfaceInterceptorTest, InterceptReparentChildrenUpdateWorks) {
+    captureTest(&SurfaceInterceptorTest::reparentChildrenUpdate,
+                SurfaceChange::SurfaceChangeCase::kReparentChildren);
+}
+
+TEST_F(SurfaceInterceptorTest, InterceptRelativeParentUpdateWorks) {
+    captureTest(&SurfaceInterceptorTest::relativeParentUpdate,
+                SurfaceChange::SurfaceChangeCase::kRelativeParent);
+}
+
+TEST_F(SurfaceInterceptorTest, InterceptDetachChildrenUpdateWorks) {
+    captureTest(&SurfaceInterceptorTest::detachChildrenUpdate,
+                SurfaceChange::SurfaceChangeCase::kDetachChildren);
+}
+
 TEST_F(SurfaceInterceptorTest, InterceptAllUpdatesWorks) {
     captureTest(&SurfaceInterceptorTest::runAllUpdates,
                 &SurfaceInterceptorTest::assertAllUpdatesFound);