uci-mcp/test/mcp.test.js

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'use strict'
const expect = require('chai').expect,
i2c = require('uci-i2c'),
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_u = require('uci-utils'),
MCP = require('../lib/mcp23008-17')
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let bus1 = new i2c.Bus(1)
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const config_sets = {
output: {
dir: 0, // 0 output,1 input
ivrt: 0,
pullup: 0,
intr: 0, // if intr = 0 usedef,deval not used
usedef: 0, // if usedef = 0 defval not used
defval: 0
},
toggle_switch: {
dir: 1, // 0 output,1 input
ivrt: 1, // for reading let 1 be zero and vice versa
pullup: 1,
intr: 1, // if intr = 0 usedef,deval not used
usedef: 0, // if usedef = 0 defval not used
defval: 0
},
momentary_switch: {
dir: 1, // 0 output,1 input
ivrt: 1, // for reading let 1 be zero and vice versa
pullup: 1,
intr: 1, // if intr = 0 usedef,deval not used
usedef: 1, // if usedef = 0 defval not used
defval: 1
}
}
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// console.log(bus1)
// bus1.scan((devs)=>{console.log('devices: ', devs)})
//bus1.scan().then(results=>console.log(results))
describe('I2C Device Classes - ', function () {
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let mcp17 = new MCP.MCP23017(bus1, 0x20, {
pin_cfg_default: 'momentary_switch',
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name: 'switches 1-16'
})
describe('MCP23017 Class - ', function () {
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it('can set and get a single pin config on both ports', function () {
expect(mcp17.pin(1).cfg, "pin configs getter failed").to.deep.equal(config_sets.momentary_switch)
expect(mcp17.pin(8).cfg.dir, "pin config getter failed").to.equal(1)
mcp17.pin(8).cfg.dir = 0
expect(mcp17.pin(8).cfg.dir, "pin address setter failed").to.equal(0)
expect(mcp17.pin(8, 'B').cfg.dir, "pin address getter port B failed").to.equal(1)
mcp17.pin(8, 'B').cfg.dir = 0
expect(mcp17.pin(8, 'B').config.dir, "pin address setter failed").to.equal(0)
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});
});
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let mcp8 = new MCP.MCP23008(bus1, 0x21, {
pin_cfg_default: 'toggle_switch',
name: 'test 1-8'
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})
describe('MCP23008 Class - ', function () {
it('can set and get a single pin config', function () {
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expect(mcp8.pin(1).cfg, "pin configs getter failed").to.deep.equal(config_sets.toggle_switch)
expect(mcp8.pin(8).cfg.dir, "pin address getter failed").to.equal(1)
expect(mcp8.pin(8).cfg.ivrt, "pin address getter failed").to.equal(1)
expect(mcp8.pin(8).cfg.usedef, "pin address getter failed").to.equal(0)
mcp8.pin(8).cfg.dir = 0
expect(mcp8.pin(8).cfg.dir, "pin address setter failed").to.equal(0)
expect(mcp8.pin(8).cfg.ivrt, "pin address getter failed").to.equal(1)
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});
});
});
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let ADDR = 0x20,
W = 0x09,
R = 0x0A,
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PINSON = 0xa5,
PINSOFF = 0x00
let testout = new MCP.MCP23008(bus1, ADDR, {
pin_cfg_default: 'output',
name: 'outputs 1-8'
})
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function tstout() {
return testout.init()
.then(() => {
console.log('testing device write and read')
return testout.write(W, PINSON)
.then(() => {
return testout.read(R)
.then((resp) => {
console.log('Pins Set On', _u.byteFormat(resp, { in: 'DEC', out: 'PLC' }))
return _u.pDelay(1000)
.then(() => {
console.log('Reset Pins')
return testout.write(W, PINSOFF)
})
})
})
})
.catch(err => console.log('errors:', err))
}
const
ADDR17 = 0x27,
port = { A: 0x09, B: 0x19 }
let testin = new MCP.MCP23017(bus1, ADDR17, {
pin_cfg_default: 'toggle_switch',
name: 'read inputs 1-16'
})
function tstin(p) {
return testin.init()
.then(() => {
console.log('port', port[p])
return testin.read(port[p])
.then((resp) => {
console.log('Port ', p, ' Pins', _u.byteFormat(resp, { in: 'DEC', out: 'PLC' }))
})
})
.catch(err => console.log('errors:', err))
}
// tstout().then(() => tstin())
bus1.qAdd(tstin('A'))
bus1.qAdd(tstin('B'))