#209: Few unit tests added for FilePickerProxy (#208)

* few unit tests added for FilePickerProxy

Friendly-plans/app/src/test/java/pg/autyzm/friendly_plans/file_picker/FilePickerProxyTest.java

@@ -2,23 +2,34 @@
 
 import static junit.framework.Assert.assertFalse;
 import static junit.framework.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.mockito.Mockito.when;
 
+import android.content.Intent;
+import com.nbsp.materialfilepicker.ui.FilePickerActivity;
 import java.util.regex.Pattern;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.Mock;
 import org.powermock.modules.junit4.PowerMockRunner;
 import org.powermock.reflect.internal.WhiteboxImpl;
 import pg.autyzm.friendly_plans.asset.AssetType;
 
 @RunWith(PowerMockRunner.class)
 public class FilePickerProxyTest {
 
+    private static final String FILE_PATH = "test_result_file_path";
     private FilePickerProxy filePickerProxy;
 
+    @Mock
+    private Intent intentMock;
+
     @Before
     public void setUp() {
         filePickerProxy = new FilePickerProxy();
+        when(intentMock.getStringExtra(FilePickerActivity.RESULT_FILE_PATH)).thenReturn(FILE_PATH);
     }
 
     @Test
@@ -50,6 +61,27 @@ public void whenGettingPatternForSoundExpectPatternToNotMatchOnlyExtension()
         assertFalse(pattern.matcher(".mp3").matches());
     }
 
+    @Test
+    public void whenCheckingPickFileRequestedExpectCorrectResult() {
+        assertTrue(filePickerProxy.isPickFileRequested(0, AssetType.PICTURE));
+        assertTrue(filePickerProxy.isPickFileRequested(1, AssetType.SOUND));
+    }
+
+    @Test
+    public void whenCheckingFilePickedWithOkExpectTrue() {
+        assertTrue(filePickerProxy.isFilePicked(FilePickerActivity.RESULT_OK));
+    }
+
+    @Test
+    public void whenCheckingFilePickedWithCanceledExpectFalse() {
+        assertFalse(filePickerProxy.isFilePicked(FilePickerActivity.RESULT_CANCELED));
+    }
+
+    @Test
+    public void whenGettingFilePathExpectCorrectResult() {
+        assertThat(filePickerProxy.getFilePath(intentMock), is(FILE_PATH));
+    }
+
     private Pattern getPattern(AssetType assetType) throws Exception {
         return WhiteboxImpl.invokeMethod(filePickerProxy, "getPattern", assetType);
     }