commit c352f3cb4e927782b802e39131961b5f3aaae2fd
author Mark <markchien@google.com> Wed Sep 13 04:59:34 2023 +0000
committer Mark <markchien@google.com> Mon Oct 23 07:34:29 2023 +0000
tree af2e5a6a09a513171350a4b7e3bd0f96cd6e5acd
parent 8f068a8a1e821974c75973e067e6ef96e294e4e0

SyncSM05.1: add testMultiDepthTransition

Test: atest TetheringTests
Change-Id: I427360f6a106b001123442ccd4802290d4f13369

Tethering/tests/unit/src/com/android/networkstack/tethering/util/SyncStateMachineTest.kt

diff --git a/Tethering/tests/unit/src/com/android/networkstack/tethering/util/SyncStateMachineTest.kt b/Tethering/tests/unit/src/com/android/networkstack/tethering/util/SyncStateMachineTest.kt
index 76fb7ad..3a57fdd 100644
--- a/Tethering/tests/unit/src/com/android/networkstack/tethering/util/SyncStateMachineTest.kt
+++ b/Tethering/tests/unit/src/com/android/networkstack/tethering/util/SyncStateMachineTest.kt
@@ -39,6 +39,7 @@
 private const val MSG_4 = 4
 private const val MSG_5 = 5
 private const val MSG_6 = 6
+private const val MSG_7 = 7
 private const val ARG_1 = 100
 private const val ARG_2 = 200
 
@@ -51,7 +52,8 @@
     private val mState4 = spy(object : TestState(MSG_4) {})
     private val mState5 = spy(object : TestState(MSG_5) {})
     private val mState6 = spy(object : TestState(MSG_6) {})
-    private val mInOrder = inOrder(mState1, mState2, mState3, mState4, mState5, mState6)
+    private val mState7 = spy(object : TestState(MSG_7) {})
+    private val mInOrder = inOrder(mState1, mState2, mState3, mState4, mState5, mState6, mState7)
     // Lazy initialize to make sure running in test thread.
     private val mSM by lazy {
         SyncStateMachine("TestSyncStateMachine", Thread.currentThread(), true /* debug */)
@@ -227,4 +229,66 @@
         mInOrder.verify(mState6).enter()
         verifyNoMoreInteractions()
     }
+
+    @Test
+    fun testMultiDepthTransition() {
+        //      mState1 -> current
+        //    |          \
+        //  mState2         mState6
+        //    |   \           |
+        //  mState3 mState5  mState7
+        //    |
+        //  mState4
+        addState(mState1)
+        addState(mState2, mState1)
+        addState(mState6, mState1)
+        addState(mState3, mState2)
+        addState(mState5, mState2)
+        addState(mState7, mState6)
+        addState(mState4, mState3)
+        verifyStart()
+
+        //      mState1 -> current
+        //    |          \
+        //  mState2         mState6
+        //    |   \           |
+        //  mState3 mState5  mState7
+        //    |
+        //  mState4 -> dest
+        processMessage(MSG_1, mState4)
+        verifyMessageProcessedBy(MSG_1, mState1)
+        mInOrder.verify(mState2).enter()
+        mInOrder.verify(mState3).enter()
+        mInOrder.verify(mState4).enter()
+        verifyNoMoreInteractions()
+
+        //            mState1
+        //        /            \
+        //  mState2             mState6
+        //    |   \                 \
+        //  mState3 mState5 -> dest  mState7
+        //    |
+        //  mState4 -> current
+        processMessage(MSG_1, mState5)
+        verifyMessageProcessedBy(MSG_1, mState4, mState3, mState2, mState1)
+        mInOrder.verify(mState4).exit()
+        mInOrder.verify(mState3).exit()
+        mInOrder.verify(mState5).enter()
+        verifyNoMoreInteractions()
+
+        //            mState1
+        //        /              \
+        //  mState2               mState6
+        //    |   \                    \
+        //  mState3 mState5 -> current  mState7 -> dest
+        //    |
+        //  mState4
+        processMessage(MSG_2, mState7)
+        verifyMessageProcessedBy(MSG_2, mState5, mState2)
+        mInOrder.verify(mState5).exit()
+        mInOrder.verify(mState2).exit()
+        mInOrder.verify(mState6).enter()
+        mInOrder.verify(mState7).enter()
+        verifyNoMoreInteractions()
+    }
 }