diff --git a/apex/apex_test.go b/apex/apex_test.go
index ee5d0f2..d2884b9 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -140,8 +140,8 @@
 		ctx.BottomUp("prebuilts", android.PrebuiltMutator).Parallel()
 	})
 	ctx.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
-		ctx.BottomUp("link", cc.LinkageMutator).Parallel()
 		ctx.BottomUp("vndk", cc.VndkMutator).Parallel()
+		ctx.BottomUp("link", cc.LinkageMutator).Parallel()
 		ctx.BottomUp("test_per_src", cc.TestPerSrcMutator).Parallel()
 		ctx.BottomUp("version", cc.VersionMutator).Parallel()
 		ctx.BottomUp("begin", cc.BeginMutator).Parallel()
@@ -547,9 +547,10 @@
 	`)
 
 	module := ctx.ModuleForTests("myapex", "android_common_myapex_image")
-	module.Output("apex_manifest.pb")
-	module.Output("apex_manifest.json")
-	module.Output("apex_manifest_full.json")
+	args := module.Rule("apexRule").Args
+	if manifest := args["manifest"]; manifest != module.Output("apex_manifest.pb").Output.String() {
+		t.Error("manifest should be apex_manifest.pb, but " + manifest)
+	}
 }
 
 func TestBasicZipApex(t *testing.T) {
@@ -2452,7 +2453,7 @@
 	ensureContains(t, androidMk, "LOCAL_MODULE := mytest1.myapex\n")
 	ensureContains(t, androidMk, "LOCAL_MODULE := mytest2.myapex\n")
 	ensureContains(t, androidMk, "LOCAL_MODULE := mytest3.myapex\n")
-	ensureContains(t, androidMk, "LOCAL_MODULE := apex_manifest.json.myapex\n")
+	ensureContains(t, androidMk, "LOCAL_MODULE := apex_manifest.pb.myapex\n")
 	ensureContains(t, androidMk, "LOCAL_MODULE := apex_pubkey.myapex\n")
 	ensureContains(t, androidMk, "LOCAL_MODULE := myapex\n")
 }
@@ -3011,6 +3012,26 @@
 	ensureNotContains(t, androidMk, "LOCAL_MODULE_STEM := myapex.apex")
 }
 
+func TestLegacyAndroid10Support(t *testing.T) {
+	ctx, _ := testApex(t, `
+		apex {
+			name: "myapex",
+			key: "myapex.key",
+			legacy_android10_support: true,
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+	`)
+
+	module := ctx.ModuleForTests("myapex", "android_common_myapex_image")
+	args := module.Rule("apexRule").Args
+	ensureContains(t, args["opt_flags"], "--manifest_json "+module.Output("apex_manifest.json").Output.String())
+}
+
 func TestMain(m *testing.M) {
 	run := func() int {
 		setUp()