Fix PackageManager query API's related to rebootless APEX updates

There were two bugs:

1. In case of the first update, ApexManager removed information about
  pre-installed version of the APEX.
2. After an update, getPackageInfo cache wasn't invalidated, which
  resulted in getPackageInfo returning stale information.

Bug: 193085724
Test: atest ApexManagerTest
Test: atest StagedInstallInternalTest
Change-Id: I6df7b296cd5d83c93524178f1546855747ea6b07

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/StagedInstallTest/app/src/com/android/tests/stagedinstallinternal/StagedInstallInternalTest.java b/tests/StagedInstallTest/app/src/com/android/tests/stagedinstallinternal/StagedInstallInternalTest.java
index d6b3c27b4b09..9cdaef75c491 100644
--- a/tests/StagedInstallTest/app/src/com/android/tests/stagedinstallinternal/StagedInstallInternalTest.java
+++ b/tests/StagedInstallTest/app/src/com/android/tests/stagedinstallinternal/StagedInstallInternalTest.java
@@ -212,6 +212,28 @@ public class StagedInstallInternalTest {
             assertThat(apex.applicationInfo.sourceDir).startsWith("/system/apex");
         }
 
+        TestApp apex1 = new TestApp("TestRebootlessApexV1", "test.apex.rebootless", 1,
+                /* isApex= */ true, "test.rebootless_apex_v1.apex");
+        Install.single(apex1).commit();
+
+        {
+            PackageInfo apex = pm.getPackageInfo("test.apex.rebootless", PackageManager.MATCH_APEX);
+            assertThat(apex.getLongVersionCode()).isEqualTo(1);
+            assertThat(apex.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM).isEqualTo(0);
+            assertThat(apex.applicationInfo.flags & ApplicationInfo.FLAG_INSTALLED)
+                    .isEqualTo(ApplicationInfo.FLAG_INSTALLED);
+            assertThat(apex.applicationInfo.sourceDir).startsWith("/data/apex/active");
+        }
+        {
+            PackageInfo apex = pm.getPackageInfo("test.apex.rebootless",
+                    PackageManager.MATCH_APEX | PackageManager.MATCH_FACTORY_ONLY);
+            assertThat(apex.getLongVersionCode()).isEqualTo(1);
+            assertThat(apex.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM)
+                    .isEqualTo(ApplicationInfo.FLAG_SYSTEM);
+            assertThat(apex.applicationInfo.flags & ApplicationInfo.FLAG_INSTALLED).isEqualTo(0);
+            assertThat(apex.applicationInfo.sourceDir).startsWith("/system/apex");
+        }
+
         TestApp apex2 = new TestApp("TestRebootlessApexV1", "test.apex.rebootless", 2,
                 /* isApex= */ true, "test.rebootless_apex_v2.apex");
         Install.single(apex2).commit();
@@ -224,6 +246,15 @@ public class StagedInstallInternalTest {
                     .isEqualTo(ApplicationInfo.FLAG_INSTALLED);
             assertThat(apex.applicationInfo.sourceDir).startsWith("/data/apex/active");
         }
+        {
+            PackageInfo apex = pm.getPackageInfo("test.apex.rebootless",
+                    PackageManager.MATCH_APEX | PackageManager.MATCH_FACTORY_ONLY);
+            assertThat(apex.getLongVersionCode()).isEqualTo(1);
+            assertThat(apex.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM)
+                    .isEqualTo(ApplicationInfo.FLAG_SYSTEM);
+            assertThat(apex.applicationInfo.flags & ApplicationInfo.FLAG_INSTALLED).isEqualTo(0);
+            assertThat(apex.applicationInfo.sourceDir).startsWith("/system/apex");
+        }
     }
 
     private static void assertSessionFailedWithMessage(int sessionId, String msg) {