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https://github.com/nodemcu/nodemcu-firmware.git
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6316b33296
* Rename to tests/README.md * Expand tests/README.md a bit * NTest: remove report() in favor of named fields Use a metatable to provide defaults which can be shadowed by the calling code. * NTest: remove old interface flag I think we have few enough tests that we can verify not needing this alert for ourselves. * NTest tests: new standard prelude Allow for NTest constructor to be passed in to the test itself. The test harness can use this to provide a wrapper that will pre-configure NTest itself. * NTest output handler for TAP messages * expect tests: core library functions * expect tests: file xfer TCL module * expect tests: add TAP-based test runner * Begin documenting TCL goo * Add .gitattributes to make sure lineends are correct ... ... if checked out under windows and executed under linux (say docker) * tests/README: enumerate dependencies * tests: more README.md Co-authored-by: Gregor Hartmann <HHHartmann@users.noreply.github.com>
90 lines
2.0 KiB
Lua
90 lines
2.0 KiB
Lua
-- Walk the GPIO subsystem through its paces, using the attached I2C GPIO chip
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--
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-- Node GPIO 13 (index 7) is connected to I2C expander channel B6; node OUT
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-- Node GPIO 15 (index 8) is connected to I2C expander channel B7; node IN
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local N = ...
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N = (N or require "NTest")("gpio-env")
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-- TODO: Preflight test that we are in the correct environment with an I2C
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-- expander in the right place with the right connections.
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-- TODO: Use the mcp23017 module in the main tree rather than hand-coding
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-- the commands
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N.test('setup', function()
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-- Set gpio pin directions
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gpio.mode(8, gpio.INPUT)
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gpio.mode(7, gpio.OUTPUT, gpio.FLOAT)
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-- Configure the I2C bus
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i2c.setup(0, 2, 1, i2c.FAST)
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-- Set the IO expander port B to channel 7 as output, 6 as input
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i2c.start(0)
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ok(i2c.address(0, 0x20, i2c.TRANSMITTER))
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i2c.write(0, 0x01, 0x7F)
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i2c.stop(0)
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end)
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local function seti2cb7(v)
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i2c.start(0)
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i2c.address(0, 0x20, i2c.TRANSMITTER)
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i2c.write(0, 0x15, v and 0x80 or 0x00)
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i2c.stop(0)
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end
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local function geti2cb6()
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i2c.start(0)
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i2c.address(0, 0x20, i2c.TRANSMITTER)
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i2c.write(0, 0x13)
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i2c.start(0)
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i2c.address(0, 0x20, i2c.RECEIVER)
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local v = i2c.read(0, 1):byte(1)
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i2c.stop(0)
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return (bit.band(v,0x40) ~= 0)
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end
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N.test('gpio read 0', function()
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seti2cb7(false)
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ok(eq(0, gpio.read(8)))
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end)
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N.test('gpio read 1', function()
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seti2cb7(true)
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ok(eq(1, gpio.read(8)))
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end)
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N.test('i2c read 0', function()
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gpio.write(7, 0)
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ok(eq(false, geti2cb6()))
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end)
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N.test('i2c read 1', function()
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gpio.write(7, 1)
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ok(eq(true, geti2cb6()))
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end)
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N.testasync('gpio toggle trigger 1', function(next)
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seti2cb7(false)
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tmr.delay(10)
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gpio.trig(8, "both", function(l,_,c)
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ok(c == 1 and l == 1)
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return next()
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end)
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seti2cb7(true)
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end, true)
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N.testasync('gpio toggle trigger 2', function(next)
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gpio.trig(8, "both", function(l,_,c)
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ok(c == 1 and l == 0)
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return next()
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end)
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seti2cb7(false)
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end, true)
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N.test('gpio toggle trigger end', function()
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gpio.trig(8, "none")
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ok(true)
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end)
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