tests: Add a suite of tests specifically for the pyboard.

In tests/pyb is now a suite of tests that tests the pyb module on the
pyboard.  They include expected output files because we can't run
CPython on the pyboard to compare against.

run-tests script has now been updated to allow pyboard tests to be run.
Just pass the option --pyboard.  This runs all basic, float and pyb
tests.  Note that float/math-fun.py currently fails because not all math
functions are implemented in stmhal/.

tests/pyb/accel.py

@@ -0,0 +1,7 @@
+accel = pyb.Accel()
+print(accel)
+accel.x()
+accel.y()
+accel.z()
+accel.tilt()
+accel.filtered_xyz()

tests/pyb/accel.py.exp

@@ -0,0 +1 @@
+<Accel>

tests/pyb/adc.py

@@ -0,0 +1,10 @@
+from pyb import ADC
+from pyb import Pin
+
+adc = ADC('X22')
+print(adc)
+
+adc.read()
+
+buf = bytearray(100)
+adc.read_timed(buf, 500)

tests/pyb/adc.py.exp

@@ -0,0 +1 @@
+<ADC on X22 channel=13>

tests/pyb/dac.py

@@ -0,0 +1,8 @@
+dac = pyb.DAC(1)
+print(dac)
+dac.noise(100)
+dac.triangle(100)
+dac.write(0)
+dac.write_timed(bytearray(10), 100, mode=pyb.DAC.NORMAL)
+pyb.delay(20)
+dac.write(0)

tests/pyb/dac.py.exp

@@ -0,0 +1 @@
+<DAC>

tests/pyb/extint.py

@@ -0,0 +1,6 @@
+ext = pyb.ExtInt('X1', pyb.ExtInt.IRQ_RISING, pyb.Pin.PULL_DOWN, lambda l:print('line:', l))
+ext.disable()
+ext.enable()
+print(ext.line())
+ext.swint()
+ext.disable()

tests/pyb/extint.py.exp

@@ -0,0 +1,2 @@
+0
+line: 0

tests/pyb/i2c.py

@@ -0,0 +1,23 @@
+from pyb import I2C
+
+i2c = I2C(1)
+i2c2 = I2C(2)
+
+i2c.init(I2C.MASTER, baudrate=400000)
+print(i2c.scan())
+i2c.deinit()
+
+# use accelerometer to test i2c bus
+
+accel_addr = 76
+
+pyb.Accel() # this will init the bus for us
+
+print(i2c.scan())
+print(i2c.is_ready(accel_addr))
+
+print(i2c.mem_read(1, accel_addr, 7, timeout=500))
+i2c.mem_write(0, accel_addr, 0, timeout=500)
+
+i2c.send(7, addr=accel_addr)
+i2c.recv(1, addr=accel_addr)

tests/pyb/i2c.py.exp

@@ -0,0 +1,4 @@
+[]
+[76]
+True
+b'\x01'

tests/pyb/led.py

@@ -0,0 +1,28 @@
+from pyb import LED
+
+for i in range(4):
+    print(LED(i+1))
+
+for i in range(4):
+    LED(i+1).on()
+pyb.delay(10)
+for i in range(4):
+    LED(i+1).off()
+pyb.delay(10)
+for i in range(4):
+    LED(i+1).toggle()
+pyb.delay(10)
+for i in range(4):
+    LED(i+1).intensity(0)
+
+for i in range(256):
+    LED(4).intensity(i)
+    if LED(4).intensity() != i:
+        print('fail', i)
+    pyb.delay(1)
+for i in range(256):
+    LED(4).intensity(255 - i)
+    pyb.delay(1)
+
+for i in range(4):
+    LED(i+1).off()

tests/pyb/led.py.exp

@@ -0,0 +1,4 @@
+<LED 1>
+<LED 2>
+<LED 3>
+<LED 4>

tests/pyb/pin.py

@@ -0,0 +1,29 @@
+from pyb import Pin
+
+p = Pin('X1')
+print(p)
+print(p.name())
+print(p.pin())
+print(p.port())
+
+p = Pin('X1', Pin.IN, Pin.PULL_UP)
+#p = Pin('X1', Pin.IN, pull=Pin.PULL_UP)
+print(p.value())
+
+p.init(p.IN, p.PULL_DOWN)
+#p.init(p.IN, pull=p.PULL_DOWN)
+print(p.value())
+
+p.init(p.OUT_PP)
+p.low()
+print(p.value())
+p.high()
+print(p.value())
+p.value(0)
+print(p.value())
+p.value(1)
+print(p.value())
+p.value(False)
+print(p.value())
+p.value(True)
+print(p.value())

tests/pyb/pin.py.exp

@@ -0,0 +1,12 @@
+<Pin A0>
+A0
+0
+0
+1
+0
+0
+1
+0
+1
+0
+1

tests/pyb/pyb1.py

@@ -0,0 +1,42 @@
+# basic tests of pyb module
+
+import pyb
+
+# test delay
+
+pyb.delay(-1)
+pyb.delay(0)
+pyb.delay(1)
+
+start = pyb.millis()
+pyb.delay(17)
+print((pyb.millis() - start) // 5) # should print 3
+
+# test udelay
+
+pyb.udelay(-1)
+pyb.udelay(0)
+pyb.udelay(1)
+
+start = pyb.millis()
+pyb.udelay(17000)
+print((pyb.millis() - start) // 5) # should print 3
+
+# other
+
+pyb.disable_irq()
+pyb.enable_irq()
+
+print(pyb.freq())
+
+print(pyb.have_cdc())
+
+pyb.hid((0, 0, 0, 0)) # won't do anything
+
+pyb.rng()
+
+pyb.sync()
+
+print(len(pyb.unique_id()))
+
+pyb.wfi()

tests/pyb/pyb1.py.exp

@@ -0,0 +1,5 @@
+3
+3
+(168000000, 168000000, 42000000, 84000000)
+True
+12

tests/pyb/rtc.py

@@ -0,0 +1,6 @@
+from pyb import RTC
+rtc = RTC()
+print(rtc)
+rtc.datetime((2014, 1, 1, 1, 0, 0, 0, 0))
+pyb.delay(1000)
+print(rtc.datetime()[:7])

tests/pyb/rtc.py.exp

@@ -0,0 +1,2 @@
+<RTC>
+(2014, 1, 1, 1, 0, 0, 1)

tests/pyb/servo.py

@@ -0,0 +1,16 @@
+from pyb import Servo
+
+servo = Servo(1)
+print(servo)
+
+servo.angle(0)
+servo.angle(10, 100)
+
+servo.speed(-10)
+servo.speed(10, 100)
+
+servo.pulse_width(1500)
+print(servo.pulse_width())
+
+servo.calibration(630, 2410, 1490, 2460, 2190)
+print(servo.calibration())

tests/pyb/servo.py.exp

@@ -0,0 +1,3 @@
+<Servo 1 at 1500us>
+1500
+(630, 2410, 1490, 2460, 2190)

tests/pyb/spi.py

@@ -0,0 +1,17 @@
+from pyb import SPI
+
+spi = SPI(1)
+print(spi)
+
+spi = SPI(1, SPI.MASTER)
+spi = SPI(1, SPI.MASTER, baudrate=500000)
+spi = SPI(1, SPI.MASTER, 500000, polarity=1, phase=1, bits=8, firstbit=SPI.MSB, ti=False, crc=None)
+print(spi)
+
+spi.init(SPI.SLAVE)
+print(spi)
+
+spi.init(SPI.MASTER)
+spi.send(1, timeout=100)
+print(spi.recv(1, timeout=100))
+print(spi.send_recv(1, timeout=100))

tests/pyb/spi.py.exp

@@ -0,0 +1,5 @@
+SPI(1)
+SPI(1, SPI.MASTER, baudrate=328125, polarity=1, phase=1, bits=8)
+SPI(1, SPI.SLAVE, polarity=1, phase=1, bits=8)
+b'\xff'
+b'\xff'

tests/pyb/switch.py

@@ -0,0 +1,6 @@
+from pyb import Switch
+
+sw = pyb.Switch()
+print(sw())
+sw.callback(print)
+sw.callback(None)

tests/pyb/switch.py.exp

@@ -0,0 +1 @@
+False

tests/pyb/timer.py

@@ -0,0 +1,28 @@
+from pyb import Timer
+
+tim = Timer(4)
+tim = Timer(4, prescaler=100, period=200)
+print(tim.prescaler())
+print(tim.period())
+tim.prescaler(300)
+print(tim.prescaler())
+tim.period(400)
+print(tim.period())
+
+tim = Timer(4, freq=1)
+tim.init(freq=2000)
+def f(t):
+    print(1)
+    t.callback(None)
+tim.callback(f)
+pyb.delay(10)
+
+# f3 closes over f2.y
+def f2(x):
+    y = x
+    def f3(t):
+        print(2, y)
+        t.callback(None)
+    return f3
+tim.callback(f2(3))
+pyb.delay(10)

tests/pyb/timer.py.exp

@@ -0,0 +1,6 @@
+100
+200
+300
+400
+1
+2 3

tests/pyb/uart.py

@@ -0,0 +1,12 @@
+from pyb import UART
+
+uart = UART(1)
+uart = UART(1, 9600)
+uart = UART(1, 9600, bits=8, stop=1, parity=None)
+print(uart)
+
+uart.init(1200)
+print(uart)
+
+uart.any()
+uart.send(1, timeout=500)

tests/pyb/uart.py.exp

@@ -0,0 +1,2 @@
+UART(1, baudrate=9600, bits=8, stop=1, parity=None)
+UART(1, baudrate=1200, bits=8, stop=1, parity=None)

tests/pyboard.py

@@ -0,0 +1 @@
+../tools/pyboard.py

tests/run-tests

@@ -3,6 +3,7 @@
 import os
 import subprocess
 import sys
+import argparse
 from glob import glob
 
 # Tests require at least CPython 3.3. If your default python3 executable
@@ -15,82 +16,113 @@ else:
     CPYTHON3 = os.getenv('MICROPY_CPYTHON3', 'python3')
     MICROPYTHON = os.getenv('MICROPY_MICROPYTHON', '../unix/micropython')
 
-# Set of tests that we shouldn't run under Travis CI
-skip_travis_tests = set(['basics/memoryerror.py'])
-
 def rm_f(fname):
     if os.path.exists(fname):
         os.remove(fname)
 
-test_count = 0
-testcase_count = 0
-passed_count = 0
-failed_tests = []
-tests = []
+def run_tests(pyb, tests):
+    test_count = 0
+    testcase_count = 0
+    passed_count = 0
+    failed_tests = []
 
-if not sys.argv[1:]:
-    test_dirs = ('basics', 'float', 'import', 'io', 'misc')
-    tests = sorted(test_file for test_files in (glob('{}/*.py'.format(dir)) for dir in test_dirs) for test_file in test_files)
-else:
-    tests = sys.argv[1:]
+    running_under_travis = os.getenv('TRAVIS') == 'true'
 
-test_on_pyboard = False
-if test_on_pyboard:
-    import pyboard
-    pyb = pyboard.Pyboard('/dev/ttyACM0')
-    pyb.enter_raw_repl()
+    # Set of tests that we shouldn't run under Travis CI
+    skip_travis_tests = set(['basics/memoryerror.py'])
 
-running_under_travis = os.getenv('TRAVIS') == 'true'
+    for test_file in tests:
+        if running_under_travis and test_file in skip_travis_tests:
+            print("skip ", test_file)
+            continue
 
-for test_file in tests:
-    if running_under_travis and test_file in skip_travis_tests:
-        print("skip ", test_file)
-        continue
+        # get expected output
+        test_file_expected = test_file + '.exp'
+        if os.path.isfile(test_file_expected):
+            # expected output given by a file, so read that in
+            with open(test_file_expected, 'rb') as f:
+                output_expected = f.read()
+        else:
+            # run CPython to work out expeceted output
+            try:
+                output_expected = subprocess.check_output([CPYTHON3, '-B', test_file])
+            except subprocess.CalledProcessError:
+                output_expected = b'CPYTHON3 CRASH'
 
-    # run CPython
-    try:
-        output_expected = subprocess.check_output([CPYTHON3, '-B', test_file])
-    except subprocess.CalledProcessError:
-        output_expected = b'CPYTHON3 CRASH'
+        # run Micro Python
+        if pyb is None:
+            # run on PC
+            try:
+                output_mupy = subprocess.check_output([MICROPYTHON, '-X', 'emit=bytecode', test_file])
+            except subprocess.CalledProcessError:
+                output_mupy = b'CRASH'
+        else:
+            # run on pyboard
+            pyb.enter_raw_repl()
+            try:
+                output_mupy = pyb.execfile(test_file).replace(b'\r\n', b'\n')
+            except pyboard.PyboardError:
+                output_mupy = b'CRASH'
 
-    # run Micro Python
-    if test_on_pyboard:
+        testcase_count += len(output_expected.splitlines())
+
+        test_basename = os.path.basename(test_file)
+        test_name = os.path.splitext(test_basename)[0]
+        filename_expected = test_basename + ".exp"
+        filename_mupy = test_basename + ".out"
+
+        if output_expected == output_mupy:
+            print("pass ", test_file)
+            passed_count += 1
+            rm_f(filename_expected)
+            rm_f(filename_mupy)
+        else:
+            with open(filename_expected, "w") as f:
+                f.write(str(output_expected, "ascii"))
+            with open(filename_mupy, "w") as f:
+                f.write(str(output_mupy, "ascii"))
+            print("FAIL ", test_file)
+            failed_tests.append(test_name)
+
+        test_count += 1
+
+    print("{} tests performed ({} individual testcases)".format(test_count, testcase_count))
+    print("{} tests passed".format(passed_count))
+
+    if len(failed_tests) > 0:
+        print("{} tests failed: {}".format(len(failed_tests), ' '.join(failed_tests)))
+        return False
+
+    # all tests succeeded
+    return True
+
+def main():
+    cmd_parser = argparse.ArgumentParser(description='Run tests for Micro Python.')
+    cmd_parser.add_argument('--pyboard', action='store_true', help='run the tests on the pyboard')
+    cmd_parser.add_argument('files', nargs='*', help='input test files')
+    args = cmd_parser.parse_args()
+
+    if args.pyboard:
+        import pyboard
+        pyb = pyboard.Pyboard('/dev/ttyACM0')
         pyb.enter_raw_repl()
-        try:
-            output_mupy = pyb.execfile(test_file).replace(b'\r\n', b'\n')
-        except pyboard.PyboardError:
-            output_mupy = b'CRASH'
     else:
-        try:
-            output_mupy = subprocess.check_output([MICROPYTHON, '-X', 'emit=bytecode', test_file])
-        except subprocess.CalledProcessError:
-            output_mupy = b'CRASH'
+        pyb = None
 
-    testcase_count += len(output_expected.splitlines())
-
-    test_basename = os.path.basename(test_file)
-    test_name = os.path.splitext(test_basename)[0]
-    filename_expected = test_basename + ".exp"
-    filename_mupy = test_basename + ".out"
-
-    if output_expected == output_mupy:
-        print("pass ", test_file)
-        passed_count += 1
-        rm_f(filename_expected)
-        rm_f(filename_mupy)
+    if len(args.files) == 0:
+        if pyb is None:
+            # run PC tests
+            test_dirs = ('basics', 'float', 'import', 'io', 'misc')
+        else:
+            # run pyboard tests
+            test_dirs = ('basics', 'float', 'pyb')
+        tests = sorted(test_file for test_files in (glob('{}/*.py'.format(dir)) for dir in test_dirs) for test_file in test_files)
     else:
-        with open(filename_expected, "w") as f:
-            f.write(str(output_expected, "ascii"))
-        with open(filename_mupy, "w") as f:
-            f.write(str(output_mupy, "ascii"))
-        print("FAIL ", test_file)
-        failed_tests.append(test_name)
+        # tests explicitly given
+        tests = args.files
 
-    test_count += 1
+    if not run_tests(pyb, tests):
+        sys.exit(1)
 
-print("{} tests performed ({} individual testcases)".format(test_count, testcase_count))
-print("{} tests passed".format(passed_count))
-
-if len(failed_tests) > 0:
-    print("{} tests failed: {}".format(len(failed_tests), ' '.join(failed_tests)))
-    sys.exit(1)
+if __name__ == "__main__":
+    main()