minor comment updates to CI tests

quad/scripts/ci-tests/test_memory_integrity.rb

@@ -77,7 +77,7 @@ ensure
   Process.kill(2, quad)
   sleep 1 # wait for valgrind to write to file
 
-  # Process the valgrind file
+  # Process the valgrind file, look for number of errors
   file = File.open("./valgrind.out")
   everything = file.readlines
   last_line = everything.last

quad/scripts/ci-tests/test_safety_checks.rb

@@ -51,7 +51,7 @@ Timeout::timeout(60) {
     check_led(0, "LED was on at startup! It should be off so that we can verify when the quad is ready.")
 
     puts("Check that increasing the throttle does nothing to motors")
-    # (because gear is still off)
+    # Motors should not engage when gear is still off
     for i in (THROTTLE_MIN..THROTTLE_MAX).step(0.01)
       set_throttle(i)
       check_motors_are_off "Was able to turn on motors with GEAR off! Yikes!"
@@ -61,6 +61,7 @@ Timeout::timeout(60) {
 
     puts("Check that flipping gear to 1 while throttle is high does nothing")
     # (motors should still be off, LED should still be off)
+	set_gear GEAR_ON
     sleep 0.01
     check_motors_are_off "Motors turned on by gear while rc throttle was high! How dangerous!"
     i = THROTTLE_MAX
@@ -72,12 +73,12 @@ Timeout::timeout(60) {
       sleep 0.005
     end
 
-    # (swtich GEAR back to off and bring throttle off)
+    # Switch GEAR off and bring throttle off
     set_gear GEAR_OFF
     set_throttle THROTTLE_MIN
 
     puts("Check that the LED turns on when gear is flipped on")
-    # (motors should still be off because our throttle is low)
+    # Motors should still be off because our throttle is low
     set_gear GEAR_ON
     sleep 0.01
     check_motors_are_off "Motors turned on while throttle was low! Yikes!"
@@ -129,7 +130,7 @@ Timeout::timeout(60) {
     sleep 0.01
     check_motors_are_off "Motors didn't turn off when GEAR was switched off! How dangerous!"
 
-    # (Bring the RC throttle back down)
+    # Bring the RC throttle back to minimum
     set_throttle THROTTLE_MIN
 
     puts "All safety checks passed."