Added test for FilenameGenerator

tests/src/de/danoeh/antennapod/test/FilenameGeneratorTest.java

@@ -0,0 +1,48 @@
+package de.danoeh.antennapod.test;
+
+import java.io.File;
+import java.io.IOException;
+
+import de.danoeh.antennapod.util.FileNameGenerator;
+import android.test.AndroidTestCase;
+
+public class FilenameGeneratorTest extends AndroidTestCase {
+
+	private static final String VALID1 = "abc abc";
+	private static final String INVALID1 = "ab/c: <abc";
+
+	public void testGenerateFileName() throws IOException {
+		String result = FileNameGenerator.generateFileName(VALID1);
+		assertEquals(result, VALID1);
+		createFiles(result);
+	}
+
+	public void testGenerateFileName1() throws IOException {
+		String result = FileNameGenerator.generateFileName(INVALID1);
+		assertEquals(result, VALID1);
+		createFiles(result);
+	}
+
+	/**
+	 * Tests if files can be created.
+	 * 
+	 * @throws IOException
+	 */
+	private void createFiles(String name) throws IOException {
+		File cache = getContext().getExternalCacheDir();
+		File testFile = new File(cache, name);
+		testFile.mkdir();
+		assertTrue(testFile.exists());
+		testFile.delete();
+		assertTrue(testFile.createNewFile());
+
+	}
+
+	@Override
+	protected void tearDown() throws Exception {
+		super.tearDown();
+		File f = new File(getContext().getExternalCacheDir(), VALID1);
+		f.delete();
+	}
+
+}