Most tests yay

tests/task5.rs

@@ -0,0 +1,66 @@
+extern crate rustijvm;
+fn steps(machine: &mut rustijvm::Machine, num: usize) {
+    for _ in 0..num {
+        machine.step().unwrap();
+    }
+}
+
+#[test]
+fn task5_invokenoargs() {
+    let mut machine = rustijvm::Machine::new_from_file("files/task5/TestInvokeNoArgs.ijvm").unwrap();
+
+    steps(&mut machine, 2);
+    assert_eq!(machine.get_tos(), Ok(0x42));
+    steps(&mut machine, 2);
+    assert_eq!(machine.get_tos(), Ok(0x43));
+    steps(&mut machine, 2);
+    assert_eq!(machine.get_tos(), Ok(0x43));
+}
+
+#[test]
+fn task5_invoke1() {
+    let mut machine = rustijvm::Machine::new_from_file("files/task5/test-invokevirtual1.ijvm").unwrap();
+
+    steps(&mut machine, 3);
+    let pc = machine.get_program_counter();
+    steps(&mut machine, 1);
+    assert_ne!(machine.get_program_counter(), pc + 1);
+    steps(&mut machine, 1);
+    assert_eq!(machine.get_tos(), Ok(0x1));
+    steps(&mut machine, 2);
+}
+
+#[test]
+fn task5_ireturn1() {
+    let mut machine = rustijvm::Machine::new_from_file("files/task5/test-invokevirtual1.ijvm").unwrap();
+
+    steps(&mut machine, 6);
+    assert_eq!(machine.get_tos(), Ok(0x1));
+    steps(&mut machine, 1);
+    assert_eq!(machine.get_tos(), Ok(0x2));
+}
+
+#[test]
+fn task5_invoke2() {
+    let mut machine = rustijvm::Machine::new_from_file("files/task5/test-invokevirtual2.ijvm").unwrap();
+
+    steps(&mut machine, 5);
+    let pc = machine.get_program_counter();
+    steps(&mut machine, 1);
+    assert_ne!(machine.get_program_counter(), pc + 1);
+    steps(&mut machine, 1);
+    assert_eq!(machine.get_tos(), Ok(0x2));
+    steps(&mut machine, 1);
+    assert_eq!(machine.get_tos(), Ok(0x3));
+    steps(&mut machine, 3);
+}
+
+#[test]
+fn task5_ireturn2() {
+    let mut machine = rustijvm::Machine::new_from_file("files/task5/test-invokevirtual2.ijvm").unwrap();
+
+    steps(&mut machine, 10);
+    assert_eq!(machine.get_tos(), Ok(0x5));
+    steps(&mut machine, 1);
+    assert_eq!(machine.get_tos(), Ok(0x2));
+}