Moved tests over to Kotlin. (#1428)

app/src/test/kotlin/fr/free/nrw/commons/MediaTest.kt

@@ -0,0 +1,23 @@
+package fr.free.nrw.commons
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.annotation.Config
+
+@RunWith(RobolectricTestRunner::class)
+@Config(constants = BuildConfig::class, sdk = intArrayOf(21), application = TestCommonsApplication::class)
+class MediaTest {
+    @Test
+    fun displayTitleShouldStripExtension() {
+        val m = Media("File:Example.jpg")
+        assertEquals("Example", m.displayTitle)
+    }
+
+    @Test
+    fun displayTitleShouldUseSpaceForUnderscore() {
+        val m = Media("File:Example 1_2.jpg")
+        assertEquals("Example 1 2", m.displayTitle)
+    }
+}