Add target for generate_hiddenapi_lists_test

atest generate_hiddenapi_lists_test would not work without setting
verbosity=2.

Bug: 194063708
Test: atest --host generate_hiddenapi_lists_test
Change-Id: Ic076ea85d58917921081ae33e72f06011c4ca49e

scripts/hiddenapi/Android.bp

@@ -48,6 +48,27 @@ python_binary_host {
     },
 }
 
+python_test_host {
+    name: "generate_hiddenapi_lists_test",
+    main: "generate_hiddenapi_lists_test.py",
+    srcs: [
+        "generate_hiddenapi_lists.py",
+        "generate_hiddenapi_lists_test.py",
+    ],
+    version: {
+        py2: {
+            enabled: false,
+        },
+        py3: {
+            enabled: true,
+            embedded_launcher: true,
+        },
+    },
+    test_options: {
+        unit_test: true,
+    },
+}
+
 python_binary_host {
     name: "verify_overlaps",
     main: "verify_overlaps.py",

scripts/hiddenapi/generate_hiddenapi_lists_test.py

@@ -101,4 +101,4 @@ class TestHiddenapiListGeneration(unittest.TestCase):
         self.assertEqual(extract_package(signature), expected_package)
 
 if __name__ == '__main__':
-    unittest.main()
+    unittest.main(verbosity=2)