enforce updatable apexes to set min_sdk_version

updatable APEXes should set min_sdk_version as well.

Bug: 152655956
Test: m
Change-Id: I8192086eb89fa958dd8ff1b731e43e24bf217ce2

apex/apex_test.go

@@ -4099,6 +4099,7 @@ func TestSymlinksFromApexToSystem(t *testing.T) {
 			native_shared_libs: ["mylib"],
 			java_libs: ["myjar"],
 			updatable: true,
+			min_sdk_version: "current",
 		}
 
 		apex_key {
@@ -4396,6 +4397,22 @@ func testNoUpdatableJarsInBootImage(t *testing.T, errmsg, bp string, transformDe
 	}
 }
 
+func TestUpdatable_should_set_min_sdk_version(t *testing.T) {
+	testApexError(t, `"myapex" .*: updatable: updatable APEXes should set min_sdk_version`, `
+		apex {
+			name: "myapex",
+			key: "myapex.key",
+			updatable: true,
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+	`)
+}
+
 func TestNoUpdatableJarsInBootImage(t *testing.T) {
 	bp := `
 		java_library {
@@ -4434,6 +4451,7 @@ func TestNoUpdatableJarsInBootImage(t *testing.T) {
 			key: "some-updatable-apex.key",
 			java_libs: ["some-updatable-apex-lib"],
 			updatable: true,
+			min_sdk_version: "current",
 		}
 
 		apex {
@@ -4455,6 +4473,7 @@ func TestNoUpdatableJarsInBootImage(t *testing.T) {
 			key: "com.android.art.something.key",
 			java_libs: ["some-art-lib"],
 			updatable: true,
+			min_sdk_version: "current",
 		}
 
 		apex_key {