I would guess that script injector injects by default inside gwt frame.

You need to specify TOP_WINDOW because jsinterop are mapped to $wnd by
default.

Something like that (can't test right now)

ScriptInjector.fromString(js).setWindow(ScriptInjector.TOP_WINDOW).inject();

If you do this then you need to change your jsni test to

  var p = new $wnd.ns.Person();

 Hope that helps.

    Vassilis


On Sun, Mar 11, 2018 at 3:44 PM, Mincong Huang <mincon...@gmail.com> wrote:

> Hi,
>
> I've a simple JavaScript:
>
> var ns = {
>   Person: function() {
>     this.sayHello = function() {
>       return 'Hi';
>     };
>   }
> }
>
> And I used it to test JsInterop annotation `@JsType` in my GWT test. I
> injected JS code to
> GWTTestCase and tried to retrieve the definition via `@JsType`. However,
> it doesn't
> work, it seems that GWT cannot find the method (see Travis CI [1]):
>
> > [INFO] [ERROR] function @io.mincongh.client.interop.
> GwtTestJsInterop$Person::sayHello() NOT FOUND, thisObj:
> com.google.gwt.dev.shell.JavaObject@43182ce3, methodName:
> @io.mincongh.client.interop.GwtTestJsInterop$Person::sayHello()
> > [INFO] Tests run: 2, Failures: 0, Errors: 1, Skipped: 0, Time elapsed:
> 11.342 sec <<< FAILURE!
>
> Actually, my code is pretty simple:
>
> public class GwtTestJsInterop extends GWTTestCase {
>   @Override
>   public void gwtSetUp() {
>     String js = "var ns = { Person: function() { this.sayHello =
> function() { return 'Hi'; }; } }";
>     ScriptInjector.fromString(js).inject();
>   }
>
>   @Override
>   public String getModuleName() {
>     return R.JUNIT_MODULE;
>   }
>
>   public void testJsni() {
>     assertEquals("Hi", sayHello());
>   }
>
>   private native String sayHello() /*-{
>     var p = new ns.Person();
>     return p.sayHello();
>   }-*/;
>
>   public void testJsType() {
>     Person p = new Person();
>     String words = p.sayHello();
>     assertEquals("Hi", words);
>   }
>
>   @JsType(namespace = "ns", isNative = true)
>   private static class Person {
>     public native String sayHello();
>   }
> }
>
>
> Note: The 2nd test method, `testJsni()`, runs successfully, so the JS
> should be
> injected correctly. I also have the flag `generateJsInteropExports`
> enabled in the
> Maven GWT plugin in the POM [2]. So what am I missing?
>
> I'm using GWT 2.8.2 and Maven GWT plugin 2.8.2. Any help will be
> appreciated!
>
> Thank you,
> Mincong HUANG
>
> [1]: https://travis-ci.org/mincong-h/learning-gwt/builds/351967694#L754
> [2]: https://github.com/mincong-h/learning-gwt/blob/
> ccb8fee02fcae78b1a5db62d5722cd29ace53286/pom.xml#L106
>
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-- 
Vassilis Virvilis

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