75 lines
1.8 KiB
JavaScript
75 lines
1.8 KiB
JavaScript
var transaction = require('../../lib/transaction')
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var assert = require('assert')
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function call_back(cb, value) {
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setTimeout(function() {
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cb(value)
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}, Math.random()*30)
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}
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function test(uplinks, cb) {
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var calls = []
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var local = uplinks.shift()
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transaction(
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uplinks.map(
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function(x, i) {return [i, x]}
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),
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function localAction(cb) {
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calls.push('l')
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call_back(cb, !local ? 'l' : null)
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},
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function localRollback(cb) {
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calls.push('lb')
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call_back(cb, true)
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},
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function remoteAction(remote, cb) {
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calls.push('r'+remote[0])
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call_back(cb, !remote[1] ? 'r'+remote[0] : null)
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},
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function remoteRollback(remote, cb) {
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calls.push('rb'+remote[0])
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call_back(cb, true)
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},
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function callback(err) {
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cb(err, calls)
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}
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)
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}
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// everything is fine
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test([true, true, true, true, true], function(err, calls) {
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assert.deepEqual(err, undefined)
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assert.deepEqual(calls, [ 'l', 'r0', 'r1', 'r2', 'r3' ])
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})
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// local throws errors - don't call remotes
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test([false, true, true, true, true], function(err, calls) {
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assert.deepEqual(err, 'l')
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assert.deepEqual(calls, ['l'])
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})
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// remote fails, call all rollbacks
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test([true, true, true, false, true], function(err, calls) {
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assert.deepEqual(err, 'r2')
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assert.deepEqual(calls, [ 'l', 'r0', 'r1', 'r2', 'r3', 'rb0', 'rb1', 'rb3', 'lb' ])
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})
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// no remotes
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test([true], function(err, calls) {
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assert.deepEqual(err, undefined)
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assert.deepEqual(calls, [ 'l' ])
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})
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// all remotes fail
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test([true, false, false, false, false], function(err, calls) {
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assert.deepEqual(err, 'r0')
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assert.deepEqual(calls, [ 'l', 'r0', 'r1', 'r2', 'r3', 'lb' ])
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})
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// mix
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test([true, true, false, true, false], function(err, calls) {
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assert.deepEqual(err, 'r1')
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assert.deepEqual(calls, [ 'l', 'r0', 'r1', 'r2', 'r3', 'rb0', 'rb2', 'lb' ])
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})
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