Move all files to natural position.

app/src/test/java/org/thoughtcrime/securesms/linkpreview/LinkPreviewUtilTest.java

@@ -0,0 +1,73 @@
+package org.thoughtcrime.securesms.linkpreview;
+
+import org.junit.Test;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import static junit.framework.TestCase.assertEquals;
+import static junit.framework.TestCase.assertFalse;
+import static junit.framework.TestCase.assertTrue;
+
+public class LinkPreviewUtilTest {
+
+  @Test
+  public void isLegal_allAscii_noProtocol() {
+    assertTrue(LinkPreviewUtil.isLegalUrl("google.com"));
+  }
+
+  @Test
+  public void isLegal_allAscii_noProtocol_subdomain() {
+    assertTrue(LinkPreviewUtil.isLegalUrl("foo.google.com"));
+  }
+
+  @Test
+  public void isLegal_allAscii_subdomain() {
+    assertTrue(LinkPreviewUtil.isLegalUrl("https://foo.google.com"));
+  }
+
+  @Test
+  public void isLegal_allAscii_subdomain_path() {
+    assertTrue(LinkPreviewUtil.isLegalUrl("https://foo.google.com/some/path.html"));
+  }
+
+  @Test
+  public void isLegal_cyrillicHostAsciiTld() {
+    assertFalse(LinkPreviewUtil.isLegalUrl("http://кц.com"));
+  }
+
+  @Test
+  public void isLegal_cyrillicHostAsciiTld_noProtocol() {
+    assertFalse(LinkPreviewUtil.isLegalUrl("кц.com"));
+  }
+
+  @Test
+  public void isLegal_mixedHost_noProtocol() {
+    assertFalse(LinkPreviewUtil.isLegalUrl("http://asĸ.com"));
+  }
+
+  @Test
+  public void isLegal_cyrillicHostAndTld_noProtocol() {
+    assertTrue(LinkPreviewUtil.isLegalUrl("кц.рф"));
+  }
+
+  @Test
+  public void isLegal_cyrillicHostAndTld_asciiPath_noProtocol() {
+    assertTrue(LinkPreviewUtil.isLegalUrl("кц.рф/some/path"));
+  }
+
+  @Test
+  public void isLegal_cyrillicHostAndTld_asciiPath() {
+    assertTrue(LinkPreviewUtil.isLegalUrl("https://кц.рф/some/path"));
+  }
+
+  @Test
+  public void isLegal_asciiSubdomain_cyrillicHostAndTld() {
+    assertFalse(LinkPreviewUtil.isLegalUrl("http://foo.кц.рф"));
+  }
+
+  @Test
+  public void isLegal_emptyUrl() {
+    assertFalse(LinkPreviewUtil.isLegalUrl(""));
+  }
+}