Add test for instanceof works for interfaces (#131)

* Add test for instanceof works for interfaces. NativeScript/android#739

* Update android_runtime_tests.py

* Update android_runtime_tests.py

* Update android_runtime_tests.py

Author: Vasil Hristov

data/issues/android-runtime-739/main-page.js

@@ -0,0 +1,19 @@
+var createViewModel = require("./main-view-model").createViewModel;
+var myRunnable = new java.lang.Runnable({
+            run: function(){}
+        });
+
+function onNavigatingTo(args) {
+    var page = args.object;
+    page.bindingContext = createViewModel();
+    console.log("### TEST START ###");
+    if (myRunnable instanceof java.lang.Runnable) {
+          console.log("### TEST PASSED ###");
+    }
+    else
+    {
+        console.log("### TEST FAILED ###");
+    }
+    console.log("### TEST END ###");
+}
+exports.onNavigatingTo = onNavigatingTo;

tests/emulator/android_runtime_tests.py

@@ -100,3 +100,32 @@ def test_301_native_package_starting_with_in_are_working(self):
         except Exception as e:
             print str(e)
             assert 1 == 2, 'Native packages starting with in could not be accessed'
+            
+    def test_302_check_if_class_implements_java_interface(self):
+        """
+         Test if java class implements java interface
+         https://github.com/NativeScript/android-runtime/issues/739
+        """
+        # Change main-page.js so it contains only logging information
+        source_js = os.path.join('data', "issues", 'android-runtime-739', 'main-page.js')
+        target_js = os.path.join(self.app_name, 'app', 'main-page.js')
+        File.copy(src=source_js, dest=target_js)
+
+        Tns.platform_remove(platform=Platform.ANDROID, attributes={"--path": self.app_name}, assert_success=False)
+        Tns.platform_add_android(attributes={"--path": self.app_name, "--frameworkPath": ANDROID_PACKAGE})
+        log = Tns.run_android(attributes={'--path': self.app_name, '--device': EMULATOR_ID}, wait=False,
+                              assert_success=False)
+
+        strings = ['Project successfully built',
+                   'Successfully installed on device with identifier', EMULATOR_ID,
+                   'Successfully synced application']
+
+        Tns.wait_for_log(log_file=log, string_list=strings, timeout=240, check_interval=10, clean_log=False)
+        try:
+            Tns.wait_for_log(log_file=log, string_list=["### TEST PASSED ###"], timeout=60, check_interval=10,
+                             clean_log=False)
+        except Exception as e:
+            print str(e)
+            assert 1 == 2, 'Check(instanceof) for java class implements java interface does not work' \
+                           '(myRunnable instanceof java.lang.Runnable)'
+