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use binary search in the prioritized task executor
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Original file line number | Diff line number | Diff line change |
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@@ -1,24 +1,39 @@ | ||
import * as tape from 'tape' | ||
import { PrioritizedTaskExecutor } from '../src/prioritizedTaskExecutor' | ||
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const taskExecutor = new PrioritizedTaskExecutor(2) | ||
tape('prioritized task executor test', function (t: any) { | ||
t.test('should execute tasks in the right order', (st: any) => { | ||
const taskExecutor = new PrioritizedTaskExecutor(2) | ||
const tasks = [1, 2, 3, 4] | ||
const callbacks = [] as any | ||
const executionOrder = [] as any | ||
tasks.forEach(function (task) { | ||
taskExecutor.execute(task, function (cb: Function) { | ||
executionOrder.push(task) | ||
callbacks.push(cb) | ||
}) | ||
}) | ||
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tape('prioritized task executor test', function (t) { | ||
const tasks = [1, 2, 3, 4] | ||
const callbacks = [] as any | ||
const executionOrder = [] as any | ||
tasks.forEach(function (task) { | ||
taskExecutor.execute(task, function (cb: Function) { | ||
executionOrder.push(task) | ||
callbacks.push(cb) | ||
callbacks.forEach(function (callback: Function) { | ||
callback() | ||
}) | ||
}) | ||
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callbacks.forEach(function (callback: Function) { | ||
callback() | ||
const expectedExecutionOrder = [1, 2, 4, 3] | ||
st.deepEqual(executionOrder, expectedExecutionOrder) | ||
st.end() | ||
}) | ||
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const expectedExecutionOrder = [1, 2, 4, 3] | ||
t.deepEqual(executionOrder, expectedExecutionOrder) | ||
t.end() | ||
t.test('should queue tasks in the right order', (st: any) => { | ||
const priorityList = [0, 1, 0, 2, 0, 1, 0, 2, 2, 1] | ||
const PTE = new PrioritizedTaskExecutor(0) // this ensures that no task actually gets executed, so this essentially just checks the sort algorithm | ||
priorityList.map((priority) => { | ||
PTE.execute(priority, () => {}) | ||
}) | ||
// have to cast the PTE as <any> to access the private queue | ||
st.deepEqual( | ||
(<any>PTE).queue.map((task: any) => task.priority), | ||
priorityList.sort((a: any, b: any) => b - a), | ||
) | ||
st.end() | ||
}) | ||
}) |