fix: decode base64-encoded file content

app/src/test/java/com/led/control/ExampleUnitTest.kt

@@ -1 +1,17 @@
-cGFja2FnZSBjb20ubGVkLmNvbnRyb2wKCmltcG9ydCBvcmcuanVuaXQuVGVzdAoKaW1wb3J0IG9yZy5qdW5pdC5Bc3NlcnQuKgoKLyoqCiAqIEV4YW1wbGUgbG9jYWwgdW5pdCB0ZXN0LCB3aGljaCB3aWxsIGV4ZWN1dGUgb24gdGhlIGRldmVsb3BtZW50IG1hY2hpbmUgKGhvc3QpLgogKgogKiBTZWUgW3Rlc3RpbmcgZG9jdW1lbnRhdGlvbl0oaHR0cDovL2QuYW5kcm9pZC5jb20vdG9vbHMvdGVzdGluZykuCiAqLwpjbGFzcyBFeGFtcGxlVW5pdFRlc3QgewogICAgQFRlc3QKICAgIGZ1biBhZGRpdGlvbl9pc0NvcnJlY3QoKSB7CiAgICAgICAgYXNzZXJ0RXF1YWxzKDQsIDIgKyAyKQogICAgfQp9
+package com.led.control
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}