fix typoes, uncaught exceptions, started unit tests for ProcessManager

src/test/java/JobServ/ProcessManagerTest.java

@@ -0,0 +1,49 @@
+/*
+ * ProcessManagerTest
+ *
+ * v1.0
+ *
+ * May 22, 2019
+ */
+
+package JobServ;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import static org.junit.Assert.assertEquals;
+
+
+/*
+ * ProcessManagerTest
+ * Class that performs positive and negative unit tests
+ * of every public method in ProcessManager. This not
+ * only unit tests ProcessManager but also integration
+ * tests it with ProcessController.
+ */
+public class ProcessManagerTest {
+    ProcessManager manager;
+
+    /*
+     * ProcessManagerTest constructor
+     * initializes the process manager
+     */
+    public ProcessManagerTest() {
+        manager = new ProcessManager();
+    }
+
+    /*
+     * addProcessTest()
+     * positive unit test for newProcess
+     */
+    @Test
+    public void addProcessesTest() {
+        int pid1 = manager.newProcess("ping google");
+        assertEquals(0, pid1);
+
+        int pid2 = manager.newProcess("ping google");
+        assertEquals(1, pid2);
+    }
+
+}
+