Add Test created by distante #85 (comment)

Author: looklookson

android/src/test/java/com/getcapacitor/community/admob/AdMobTest.java

@@ -2,6 +2,7 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.atMostOnce;
 import static org.mockito.Mockito.lenient;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.reset;
@@ -42,6 +43,7 @@
  */
 @ExtendWith(MockitoExtension.class)
 public class AdMobTest {
+
     @Mock
     Context mockedContext;
 
@@ -62,7 +64,6 @@ public void beforeEach() {
 
         sut =
             new AdMob() {
-
                 @Override
                 public Context getContext() {
                     return mockedContext;
@@ -88,6 +89,7 @@ public void afterEach() {
     @Nested
     @DisplayName("Initialize()")
     class Initialize {
+
         MockedStatic<MobileAds> mobileAdsMockedStatic;
         JSArray testingDevices;
 
@@ -151,6 +153,7 @@ public void bannerExecutorInitialize() {
     @Nested
     @DisplayName("Ads Creation")
     class AdsCreation {
+
         AdOptions adOptionsWithNpaTrue = new AdOptions.TesterAdOptionsBuilder().setNpa(true).build();
 
         MockedStatic<MobileAds> mobileAdsMockedStatic;
@@ -218,6 +221,20 @@ void prepareInterstitial() {
                 }
             }
 
+            @Test
+            @DisplayName("Interstitial does not initialize the same add two times")
+            void prepareInterstitialJustOneTime() {
+                try (MockedConstruction<InterstitialAd> interstitialAdMockedConstruction = Mockito.mockConstruction(InterstitialAd.class)) {
+                    when(adOptionsFactoryMock.createInterstitialOptions(any())).thenReturn(adOptionsWithNpaTrue);
+
+                    sut.prepareInterstitial(pluginCallMock);
+                    sut.prepareInterstitial(pluginCallMock);
+                    sut.prepareInterstitial(pluginCallMock);
+                    sut.prepareInterstitial(pluginCallMock);
+                    verify(mockedActivity, atMostOnce()).runOnUiThread(runnableArgumentCaptor.capture());
+                }
+            }
+
             @Test
             @DisplayName("Rewarded Video Ad constructs the request using the RequestHelper")
             void prepareRewardVideo() {
@@ -233,4 +250,4 @@ void prepareRewardVideo() {
             }
         }
     }
-}
+}