Moving some utilities methods to separate class

Change-Id: I5094b22ddc77c45590cea1a5f5dead0dc7580abf

2 files changed, 38 insertions, 1 deletions

diff --git a/robolectric_tests/src/com/android/launcher3/util/IntArrayTest.java b/robolectric_tests/src/com/android/launcher3/util/IntArrayTest.java
new file mode 100644
index 000000000..c08e198a8
--- /dev/null
+++ b/robolectric_tests/src/com/android/launcher3/util/IntArrayTest.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+
+/**
+ * Robolectric unit tests for {@link IntArray}
+ */
+@RunWith(RobolectricTestRunner.class)
+public class IntArrayTest {
+
+    @Test
+    public void concatAndParseString() {
+        int[] array = new int[] {0, 2, 3, 9};
+        String concat = IntArray.wrap(array).toConcatString();
+
+        int[] parsed = IntArray.fromConcatString(concat).toArray();
+        assertThat(array).isEqualTo(parsed);
+    }
+}
diff --git a/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java b/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java
index f846de5e5..8513353dc 100644
--- a/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java
+++ b/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java
@@ -21,7 +21,6 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import org.robolectric.RobolectricTestRunner;
-import org.robolectric.annotation.Config;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;