mirrors
/
i2cdriver
mirror of https://github.com/jamesbowman/i2cdriver.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

all tests now passing on Python 2.7

This commit is contained in:
James Bowman 2020-01-13 19:22:23 -08:00
parent 449e931853
commit e327a2ddb1
1 changed files with 30 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
python/tests/accept.py
View File

@ -1,3 +1,5 @@
from __future__ import print_function, division
import sys
import time
import struct
@ -12,6 +14,9 @@ AGG = "agg" # blk1
def bit(b, x):
return 1 & (x >> b)
def byte(x):
return struct.pack("B", x)
class TestDUT(unittest.TestCase):
def setUp(self):
self.i2 = i2cdriver.I2CDriver(DUT)
@ -118,6 +123,20 @@ class TestDUT(unittest.TestCase):
for n in (127, 128, 129):
self.assertEqual(i2.regrd(0x48, reg, ">" + str(n) + "h"), (0x7480,) * n)
def test_regwr(self):
i2c = self.i2
sa0 = 0x48
wdata = []
lcnt = 16
for i in range(lcnt):
x = random.randint(0, 255)
wdata.append(x)
print(wdata)
i2c.regwr(sa0, 0x00, wdata)
time.sleep(0.5)
x = i2c.regrd(sa0, 0x00, "<16B")
print(x)
def test_setspeed(self):
i2 = self.init()
self.stack0()
@ -136,7 +155,7 @@ class TestDUT(unittest.TestCase):
t1 = time.time()
i2.capture_stop()
self.assertEqual(d, bytes(15))
self.assertEqual(d, b'\x00' * 15)
self.assertTrue(0.4 < (t1 - t0) < 0.6)
def test_cap_0(self):
@ -209,10 +228,10 @@ class TestDUT(unittest.TestCase):
self.stack0()
i2.ser.write(b'b')
for i in range(1000): # Square wave for a while
i2.ser.write(bytes([0b1111, 0b0101]))
i2.ser.write(bytes([0b1010, 0b11010])) # Float, request a byte
self.assertEqual(i2.ser.read(1), bytes([3])) # both should be high
i2.ser.write(bytes([0b0101])) # Leave driven low
i2.ser.write(byte(0b1111) + byte(0b0101))
i2.ser.write(byte(0b1010) + byte(0b11010)) # Float, request a byte
self.assertEqual(struct.unpack("B", i2.ser.read(1)), (3, )) # both should be high
i2.ser.write(byte(0b0101)) # Leave driven low
i2.ser.write(b'@')
self.checkmode('B')
i2.restore()
@ -226,13 +245,13 @@ class TestDUT(unittest.TestCase):
if i2.product != "spidriver1":
return
for n in [0b1101, 0b1011, 0b0000, 0b1111] + list(range(16)):
i2.ser.write(b'b' + bytes([n, 0x40]))
i2.ser.write(b'b' + byte(n) + byte(0x40))
s1 = i2.introspect()
self.assertEqual(bit(0, n), bit(2, s1["P0MDOUT"]))
self.assertEqual(bit(1, n), bit(2, s1["P0"]))
self.assertEqual(bit(2, n), bit(4, s1["P1MDOUT"]))
self.assertEqual(bit(3, n), bit(4, s1["P1"]))
i2.ser.write(b'b' + bytes([0x40]))
i2.ser.write(b'b' + byte(0x40))
s2 = i2.introspect()
for i in ("P0", "P1", "P0MDOUT", "P1MDOUT"):
self.assertEqual(s1[i], s2[i])
@ -248,9 +267,9 @@ class TestDUT(unittest.TestCase):
HIGH = 0b11
INPUT = 0b10
def port(d, sda, scl, read = False):
d.ser.write(bytes([sda | (scl << 2) | (int(read) << 4)]))
d.ser.write(byte(sda | (scl << 2) | (int(read) << 4)))
if read:
(r,) = d.ser.read(1)
(r,) = struct.unpack("B", d.ser.read(1))
return (r & 1, (r >> 1) & 1)
for sda in (LOW, HIGH, LOW):
@ -287,10 +306,10 @@ class TestDUT(unittest.TestCase):
def sample(p, pv):
i2.setpullups(p)
i2.ser.write(b'v' + bytes([pv]))
i2.ser.write(b'v' + byte(pv))
while True:
i2.ser.write(b'w')
r = i2.ser.read(1)
r = struct.unpack("B", i2.ser.read(1))
if r[0] == 0:
break
return struct.unpack("2B", i2.ser.read(2))