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Commit 44c243c0 authored by Alan Ding's avatar Alan Ding
Browse files

DM: Add test for virtual display unique ID prefix 

Check VirtualDisplayAdapter.generateDisplayUniqueId prefix format.

Bug: 339927087
Bug: 137375833
Bug: 194863377
Test: atest DisplayServiceTests
Change-Id: I308fbaae49d49d2cb2c3aa8ef3ab187842fec440
parent b8d1fb89

services/tests/displayservicetests/src/com/android/server/display/VirtualDisplayAdapterTest.java

+21 −0
Original line number Diff line number Diff line
@@ -18,12 +18,14 @@ package com.android.server.display; 


import static org.junit.Assert.assertNotNull;

import static org.junit.Assert.assertNull;

import static org.junit.Assert.assertTrue;

import static org.mockito.Mockito.when;



import android.content.Context;

import android.hardware.display.IVirtualDisplayCallback;

import android.hardware.display.VirtualDisplayConfig;

import android.os.IBinder;

import android.os.Process;



import androidx.test.ext.junit.runners.AndroidJUnit4;

import androidx.test.filters.SmallTest;
@@ -87,6 +89,25 @@ public class VirtualDisplayAdapterTest { 
        assertNotNull(result);

    }



    @Test

    public void testCreatesVirtualDisplay_checkGeneratedDisplayUniqueIdPrefix() {

        VirtualDisplayConfig config = new VirtualDisplayConfig.Builder("test", /* width= */ 1,

                /* height= */ 1, /* densityDpi= */ 1).build();



        final String packageName = "testpackage";

        final String displayUniqueId = VirtualDisplayAdapter.generateDisplayUniqueId(

                packageName, Process.myUid(), config);



        DisplayDevice result = mVirtualDisplayAdapter.createVirtualDisplayLocked(

                mMockCallback, /* projection= */ null, /* ownerUid= */ 10,

                packageName, displayUniqueId, /* surface= */ null, /* flags= */ 0, config);



        assertNotNull(result);



        final String uniqueId = result.getUniqueId();

        assertTrue(uniqueId.startsWith(VirtualDisplayAdapter.UNIQUE_ID_PREFIX + packageName));

    }



    @Test

    public void testDoesNotCreateVirtualDisplayForSameCallback() {

        VirtualDisplayConfig config1 = new VirtualDisplayConfig.Builder("test", /* width= */ 1,