Add some tests for SetCycleTime

tests/simulator/timing/test/testcase.cpp

@@ -68,6 +68,44 @@ TEST_F(SimulatorTiming, LongTimeElapses) {
   assertTimeElapses(t_500_000);
 }
 
+TEST_F(SimulatorTiming, 3msPerCycleTestRunCycles) {
+
+
+
+  sim_.SetCycleTime(3);
+  // Record time at start
+  uint32_t start = Kaleidoscope.millisAtCycleStart();
+  // Run cycles until the given amount of time has elapsed
+  sim_.RunCycles(1);
+  // Record time at end
+  uint32_t end = Kaleidoscope.millisAtCycleStart();
+  ASSERT_EQ((end - start), 3) << "Start was " << start << " and end was " <<  end;
+
+
+  // Record time at start
+  start = Kaleidoscope.millisAtCycleStart();
+  // Run cycles until the given amount of time has elapsed
+  sim_.RunCycles(10);
+  // Record time at end
+  end = Kaleidoscope.millisAtCycleStart();
+  ASSERT_EQ((end - start), 30) << "Start was " << start << " and end was " <<  end;
+
+
+}
+
+
+TEST_F(SimulatorTiming, 4msPerCycleTestRunForMillis) {
+  sim_.SetCycleTime(4);
+  // Record time at start
+  uint32_t start = Kaleidoscope.millisAtCycleStart();
+  // Run cycles until the given amount of time has elapsed
+  sim_.RunForMillis(40);
+  // Record time at end
+  uint32_t end = Kaleidoscope.millisAtCycleStart();
+  ASSERT_EQ((end - start), 40);
+
+}
+
 }  // namespace
 }  // namespace testing
 }  // namespace kaleidoscope