Add test for discard after recreation

geo/src/test/java/org/odk/collect/geo/geopoly/GeoPolyFragmentTest.kt

@@ -353,6 +353,45 @@ class GeoPolyFragmentTest {
         )
     }
 
+    @Test
+    fun whenPolygonHasBeenModified_recreating_andPressingBack_andClickingDiscard_setsOriginalAsResult() {
+        val onBackPressedDispatcher = OnBackPressedDispatcher()
+        val scenario = fragmentLauncherRule.launchInContainer(
+            GeoPolyFragment::class.java,
+            factory = FragmentFactoryBuilder()
+                .forClass(GeoPolyFragment::class) {
+                    GeoPolyFragment(
+                        { onBackPressedDispatcher },
+                        inputPolygon = listOf(MapPoint(0.0, 0.0), MapPoint(1.0, 1.0))
+                    )
+                }
+                .build()
+        )
+
+        mapFragment.ready()
+
+        val resultListener = FragmentResultRecorder()
+        scenario.setFragmentResultListener(GeoPolyFragment.REQUEST_GEOPOLY, resultListener)
+
+        startInput()
+        mapFragment.click(MapPoint(2.0, 2.0))
+        resultListener.clear()
+
+        scenario.recreate()
+        scenario.setFragmentResultListener(GeoPolyFragment.REQUEST_GEOPOLY, resultListener)
+        mapFragment.ready()
+
+        onBackPressedDispatcher.onBackPressed()
+        Interactions.clickOn(withText(string.discard), root = isDialog())
+
+        val result = resultListener.lastResult
+        assertThat(result!!.first, equalTo(GeoPolyFragment.REQUEST_GEOPOLY))
+        assertThat(
+            result.second.getString(GeoPolyFragment.RESULT_GEOPOLY),
+            equalTo("0.0 0.0 0.0 0.0;1.0 1.0 0.0 0.0")
+        )
+    }
+
     @Test
     fun startingInput_usingAutomaticMode_usesRetainMockAccuracyTrueToStartLocationTracker() {
         fragmentLauncherRule.launchInContainer(