Added tests for FileParser class, as well as test files

src/test/java/seng302/FileParserTest.java

@@ -0,0 +1,53 @@
+package seng302;
+
+import org.junit.Test;
+
+import java.io.FileNotFoundException;
+import java.util.ArrayList;
+
+import static org.junit.Assert.*;
+
+/** Unit test for FileParser class
+ * Created by Haoming on 5/03/17.
+ */
+public class FileParserTest {
+
+	/*
+		test if it fails from reading non existed file
+	 */
+	@Test (expected = FileNotFoundException.class)
+	public void readNonExistedFile() throws Exception {
+		FileParser fileParser = new FileParser("test/java/seng302/non-existed.json");
+	}
+
+	/*
+		test a valid json file with valid content.
+	 */
+	@Test
+	public void readValidFile() throws Exception{
+		FileParser fileParser = new FileParser("src/test/java/seng302/valid.json");
+
+		assertEquals(fileParser.getRaceName(), "IDK");
+
+		ArrayList<String> teams = new ArrayList<>();
+		teams.add("team1");
+		teams.add("team2");
+		teams.add("team3");
+		assertTrue(teams.equals(fileParser.getTeams()));
+	}
+
+	/*
+		test an invalid json file within wrong type value and misnamed
+		variable name.
+	 */
+	@Test
+	public void readInvaldFile() throws Exception {
+		FileParser fileParser = new FileParser("src/test/java/seng302/invalid.json");
+
+		assertEquals(fileParser.getRaceName(), null);
+		assertEquals(fileParser.getTeams(), null);
+		assertEquals(fileParser.getTimeScale(), -1);
+		assertEquals(fileParser.getTeams(), null);
+	}
+
+}