Fixes profiles file creation

Adds some tests

test/DownloadTests.java

@@ -0,0 +1,15 @@
+import net.knarcraft.serverlauncher.profile.Profile;
+import net.knarcraft.serverlauncher.server.ServerType;
+import org.junit.Test;
+
+import javax.naming.ConfigurationException;
+import java.io.IOException;
+
+public class DownloadTests {
+    @Test
+    public void downloadJarsTest() throws IOException, ConfigurationException {
+        // Will currently always fail since knarcraft.net is down.
+        ServerType.loadServerTypes();
+        Profile.downloadJars();
+    }
+}

test/Tests.java

@@ -0,0 +1,34 @@
+import net.knarcraft.serverlauncher.profile.Profile;
+import net.knarcraft.serverlauncher.server.ServerType;
+import org.junit.Test;
+
+import javax.naming.ConfigurationException;
+import java.io.FileNotFoundException;
+
+import static net.knarcraft.serverlauncher.Shared.stringBetween;
+import static org.junit.Assert.assertEquals;
+
+public class Tests {
+    @Test
+    public void loadServerVersions() throws ConfigurationException { //Make sure the server versions file has correct syntax
+        ServerType.loadServerTypes();
+    }
+
+    @Test
+    public void saveProfile() throws FileNotFoundException { //Make sure we can write profiles to disk
+        Profile.addProfile("Test");
+        Profile.getCurrent().save();
+    }
+
+    @Test
+    public void stringBetweenTest() { //Make sure stringBetween is not creating exceptions
+        String substring = stringBetween("fish'nchips", "f", "'");
+        assertEquals("ish", substring);
+        substring = stringBetween("something", "whale", "fish");
+        assertEquals("", substring);
+        substring = stringBetween("something", "so", "fish");
+        assertEquals("", substring);
+        substring = stringBetween("something", "asd", "ing");
+        assertEquals("", substring);
+    }
+}