test: added unit tests for the ShareUtils utility class. (#524)

app/build.gradle

@@ -206,7 +206,13 @@ dependencies {
     implementation 'com.kevalpatel2106:emoticongifkeyboard:1.1'
 
     implementation group: 'eu.medsea.mimeutil', name: 'mime-util', version: '2.1.3'
+
     testImplementation 'junit:junit:4.12'
+    testImplementation 'org.mockito:mockito-core:2.26.0'
+    testImplementation 'org.powermock:powermock-core:2.0.0'
+    testImplementation 'org.powermock:powermock-module-junit4:2.0.0'
+    testImplementation 'org.powermock:powermock-api-mockito2:2.0.0'
+
     androidTestImplementation ('androidx.test.espresso:espresso-core:3.1.0-alpha4', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })

app/src/test/java/com/nextcloud/talk/utils/ShareUtilsTest.java

@@ -0,0 +1,84 @@
+package com.nextcloud.talk.utils;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.text.TextUtils;
+
+import com.nextcloud.talk.R;
+import com.nextcloud.talk.models.database.UserEntity;
+import com.nextcloud.talk.models.json.rooms.Conversation;
+import com.nextcloud.talk.utils.database.user.UserUtils;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+import static org.junit.Assert.*;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.when;
+import static org.powermock.api.mockito.PowerMockito.mockStatic;
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(TextUtils.class)
+public class ShareUtilsTest {
+
+    @Mock
+    private Context context;
+
+    @Mock
+    private Resources resources;
+
+    @Mock
+    private UserUtils userUtils;
+
+    @Mock
+    private Conversation conversation;
+
+    @Mock
+    private UserEntity userEntity;
+
+    private final String baseUrl = "https://my.nextcloud.com";
+
+    private final String token = "2aotbrjr";
+
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mockStatic(TextUtils.class);
+        when(userUtils.getCurrentUser()).thenReturn(userEntity);
+        when(userEntity.getBaseUrl()).thenReturn(baseUrl);
+        when(conversation.getToken()).thenReturn(token);
+        when(context.getResources()).thenReturn(resources);
+        when(resources.getString(R.string.nc_share_text)).thenReturn("Join the conversation at %1$s/index.php/call/%2$s");
+        when(resources.getString(R.string.nc_share_text_pass)).thenReturn("\nPassword: %1$s");
+
+    }
+
+    @Test
+    public void getStringForIntent_noPasswordGiven_correctStringWithoutPasswordReturned() {
+        PowerMockito.when(TextUtils.isEmpty(anyString())).thenReturn(true);
+
+        String expectedResult = String.format("Join the conversation at %s/index.php/call/%s",
+                baseUrl, token);
+        assertEquals("Intent string was not as expected",
+                expectedResult, ShareUtils.getStringForIntent(context, "", userUtils, conversation));
+    }
+
+    @Test
+    public void getStringForIntent_passwordGiven_correctStringWithPasswordReturned() {
+        PowerMockito.when(TextUtils.isEmpty(anyString())).thenReturn(false);
+
+        String password = "superSecret";
+        String expectedResult = String.format("Join the conversation at %s/index.php/call/%s\nPassword: %s",
+                baseUrl, token, password);
+        assertEquals("Intent string was not as expected",
+                expectedResult, ShareUtils.getStringForIntent(context, password, userUtils, conversation));
+    }
+
+}