Moved the test to use robolectric and updated it to be flavor aware.

app/src/test/java/fr/free/nrw/commons/PageTitleTest.java

@@ -0,0 +1,70 @@
+package fr.free.nrw.commons;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+
+import java.net.URLEncoder;
+
+import static org.hamcrest.CoreMatchers.is;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(constants = BuildConfig.class, sdk = 21)
+public class PageTitleTest {
+    @Test
+    public void displayTextShouldNotBeUnderscored() {
+        Assert.assertThat(new PageTitle("Ex_1 ").getDisplayText(),
+                is("Ex 1"));
+    }
+
+    @Test
+    public void moreThanTwoColons() {
+        Assert.assertThat(new PageTitle("File:sample:a.jpg").getPrefixedText(),
+                is("File:Sample:a.jpg"));
+    }
+
+    @Test
+    public void getTextShouldReturnWithoutNamespace() {
+        Assert.assertThat(new PageTitle("File:sample.jpg").getText(),
+                is("Sample.jpg"));
+    }
+
+
+    @Test
+    public void capitalizeNameAfterNamespace() {
+        Assert.assertThat(new PageTitle("File:sample.jpg").getPrefixedText(),
+                is("File:Sample.jpg"));
+    }
+
+    @Test
+    public void prefixedTextShouldBeUnderscored() {
+        Assert.assertThat(new PageTitle("Ex 1 ").getPrefixedText(),
+                is("Ex_1"));
+    }
+
+    @Test
+    public void getMobileUriForTest() {
+        Assert.assertThat(new PageTitle("Test").getMobileUri().toString(),
+                is(BuildConfig.MOBILE_HOME_URL + "Test"));
+    }
+
+    @Test
+    public void spaceBecomesUnderscoreInUri() {
+        Assert.assertThat(new PageTitle("File:Ex 1.jpg").getCanonicalUri().toString(),
+                is(BuildConfig.HOME_URL + "File:Ex_1.jpg"));
+    }
+
+    @Test
+    public void leaveSubpageNamesUncapitalizedInUri() {
+        Assert.assertThat(new PageTitle("User:Ex/subpage").getCanonicalUri().toString(),
+                is(BuildConfig.HOME_URL + "User:Ex/subpage"));
+    }
+
+    @Test
+    public void unicodeUri() throws Throwable {
+        Assert.assertThat(new PageTitle("User:例").getCanonicalUri().toString(),
+                is(BuildConfig.HOME_URL + "User:" + URLEncoder.encode("例", "utf-8")));
+    }
+}