Move CachedContentIndex and SimpleCacheSpan tests to robolectric

PiperOrigin-RevId: 223518390

library/core/src/androidTest/java/com/google/android/exoplayer2/upstream/cache/CachedContentIndexTest.java → library/core/src/test/java/com/google/android/exoplayer2/upstream/cache/CachedContentIndexTest.java

@@ -20,8 +20,6 @@ import static com.google.common.truth.Truth.assertWithMessage;
 
 import android.net.Uri;
 import android.util.SparseArray;
-import androidx.test.InstrumentationRegistry;
-import androidx.test.runner.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.util.Util;
 import java.io.File;
@@ -34,9 +32,11 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
 
 /** Tests {@link CachedContentIndex}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(RobolectricTestRunner.class)
 public class CachedContentIndexTest {
 
   private final byte[] testIndexV1File = {
@@ -79,7 +79,7 @@ public class CachedContentIndexTest {
   @Before
   public void setUp() throws Exception {
     cacheDir =
-        Util.createTempDirectory(InstrumentationRegistry.getTargetContext(), "ExoPlayerTest");
+        Util.createTempDirectory(RuntimeEnvironment.application, "ExoPlayerTest");
     index = new CachedContentIndex(cacheDir);
   }
 

library/core/src/androidTest/java/com/google/android/exoplayer2/upstream/cache/SimpleCacheSpanTest.java → library/core/src/test/java/com/google/android/exoplayer2/upstream/cache/SimpleCacheSpanTest.java

@@ -18,8 +18,6 @@ package com.google.android.exoplayer2.upstream.cache;
 import static com.google.common.truth.Truth.assertThat;
 import static com.google.common.truth.Truth.assertWithMessage;
 
-import androidx.test.InstrumentationRegistry;
-import androidx.test.runner.AndroidJUnit4;
 import com.google.android.exoplayer2.util.Util;
 import java.io.File;
 import java.io.FileOutputStream;
@@ -31,14 +29,13 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
 
 /** Unit tests for {@link SimpleCacheSpan}. */
-@RunWith(AndroidJUnit4.class)
+@RunWith(RobolectricTestRunner.class)
 public class SimpleCacheSpanTest {
 
-  private CachedContentIndex index;
-  private File cacheDir;
-
   public static File createCacheSpanFile(File cacheDir, int id, long offset, int length,
       long lastAccessTimestamp) throws IOException {
     File cacheFile = SimpleCacheSpan.getCacheFile(cacheDir, id, offset, lastAccessTimestamp);
@@ -46,17 +43,13 @@ public class SimpleCacheSpanTest {
     return cacheFile;
   }
 
-  public static CacheSpan createCacheSpan(CachedContentIndex index, File cacheDir, String key,
-      long offset, int length, long lastAccessTimestamp) throws IOException {
-    int id = index.assignIdForKey(key);
-    File cacheFile = createCacheSpanFile(cacheDir, id, offset, length, lastAccessTimestamp);
-    return SimpleCacheSpan.createCacheEntry(cacheFile, index);
-  }
+  private CachedContentIndex index;
+  private File cacheDir;
 
   @Before
   public void setUp() throws Exception {
     cacheDir =
-        Util.createTempDirectory(InstrumentationRegistry.getTargetContext(), "ExoPlayerTest");
+        Util.createTempDirectory(RuntimeEnvironment.application, "ExoPlayerTest");
     index = new CachedContentIndex(cacheDir);
   }
 
@@ -86,12 +79,12 @@ public class SimpleCacheSpanTest {
 
   @Test
   public void testUpgradeFileName() throws Exception {
-    String key = "asd\u00aa";
+    String key = "abc%def";
     int id = index.assignIdForKey(key);
     File v3file = createTestFile(id + ".0.1.v3.exo");
-    File v2file = createTestFile("asd%aa.1.2.v2.exo");
-    File wrongEscapedV2file = createTestFile("asd%za.3.4.v2.exo");
-    File v1File = createTestFile("asd\u00aa.5.6.v1.exo");
+    File v2file = createTestFile("abc%25def.1.2.v2.exo"); // %25 is '%' after escaping
+    File wrongEscapedV2file = createTestFile("abc%2Gdef.3.4.v2.exo"); // 2G is invalid hex
+    File v1File = createTestFile("abc%def.5.6.v1.exo"); // V1 did not escape
 
     for (File file : cacheDir.listFiles()) {
       SimpleCacheSpan cacheEntry = SimpleCacheSpan.createCacheEntry(file, index);