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test.js
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test.js
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import { tryRequire } from 'source/env/tryRequire.js'
import { string, basicFunction } from 'source/common/verify.js'
import { isString, isBasicFunction } from 'source/common/check.js'
import { catchSync, catchAsync } from 'source/common/error.js'
import { clock } from 'source/common/time.js'
import { time } from 'source/common/format.js'
import { indentLine } from 'source/common/string.js'
import { withTimeoutAsync } from 'source/common/function.js'
import { createTreeDepthFirstSearchAsync } from 'source/common/data/Tree.js'
const LIST_NAME_BEFORE = 'beforeList'
const LIST_NAME_IT = 'itList'
const LIST_NAME_AFTER = 'afterList'
const createScope = (
upperScope = null,
level = 0,
title = ''
) => ({
upperScope, level, title,
[ LIST_NAME_BEFORE ]: [],
[ LIST_NAME_IT ]: [],
[ LIST_NAME_AFTER ]: []
})
const walkScopeAsync = createTreeDepthFirstSearchAsync((scope) => scope.func ? [] : [
...scope[ LIST_NAME_BEFORE ],
...scope[ LIST_NAME_IT ],
...scope[ LIST_NAME_AFTER ]
])
const getTitleStack = (title, upperScope) => {
const titleStack = [ title ]
while (upperScope) {
titleStack.unshift(upperScope.title)
upperScope = upperScope.upperScope
}
return titleStack
}
const createTest = ({ // BDD style
colorFallback = (text) => text,
colorError = colorFallback,
colorMain = colorFallback,
colorTitle = colorFallback,
colorText = colorFallback,
colorTime = colorFallback
} = {}) => {
let ROOT_SCOPE
let CURRENT_SCOPE
let RESULT
let CONFIG
const describe = (title, setupFunc) => {
string(title, 'invalid describe title')
basicFunction(setupFunc, 'invalid describe setupFunc')
if (CURRENT_SCOPE === undefined) throw new Error(`should add "describe()" between "TEST_SETUP()" & "TEST_RUN()": ${title}`)
const innerScope = createScope(CURRENT_SCOPE, CURRENT_SCOPE.level + 1, title)
CURRENT_SCOPE[ LIST_NAME_IT ].push(innerScope)
CURRENT_SCOPE = innerScope
const { result, error } = catchSync(setupFunc) // TODO: should be sync
if (result instanceof Promise) throw new Error(`unexpect Promise from describe: ${title}`)
if (error) {
CONFIG.log(colorError(`error from describe: ${title}`))
throw error
}
CURRENT_SCOPE = CURRENT_SCOPE.upperScope
}
const getPushScopeFunc = (type, typeListName) => (title, func) => {
if (func === undefined && isBasicFunction(title)) [ title, func ] = [ func, title ] // swap to support auto naming, but this is not a good test habit
if (!isString(title)) title = `${CURRENT_SCOPE.title} - ${type} #${CURRENT_SCOPE[ typeListName ].length}`
string(title, `invalid ${type} title`)
basicFunction(func, `invalid ${type} func`)
if (CURRENT_SCOPE === undefined) throw new Error(`should "${type}()" between "TEST_SETUP()" & "TEST_RUN()": ${title}`)
CURRENT_SCOPE[ typeListName ].push({
upperScope: CURRENT_SCOPE,
level: CURRENT_SCOPE.level + 1,
title,
func
})
}
const before = getPushScopeFunc('before', LIST_NAME_BEFORE)
const it = getPushScopeFunc('it', LIST_NAME_IT)
const after = getPushScopeFunc('after', LIST_NAME_AFTER)
const stringify = (tryRequire('node:util') || {}).inspect || String
const info = (...args) => CONFIG && CONFIG.log(indentLine(args.map((v) => isString(v) ? v : stringify(v)).join(' '), ' > '))
const TEST_SETUP = ({
log = console.log,
logLevel = (level, ...args) => log(indentLine(args.join(' '), ' '.repeat(level))),
timeout = 42 * 1000, // 42 sec, for each test
testGlobal = globalThis,
isSkipGlobalAssign = false
} = {}) => {
ROOT_SCOPE = CURRENT_SCOPE = createScope(null, 0, 'root')
RESULT = { passList: [], failList: [] }
CONFIG = { log, logLevel, timeout }
// inject global for test script
!isSkipGlobalAssign && Object.assign(testGlobal, { describe, it, before, after, info })
CONFIG.log(colorMain('[TEST] setup'))
}
const TEST_RUN = async () => {
CONFIG.log(colorMain('[TEST] run'))
// reset
const scope = ROOT_SCOPE
ROOT_SCOPE = CURRENT_SCOPE = undefined
const runStart = clock()
await walkScopeAsync(scope, async ({
upperScope,
title,
level,
func
}) => {
if (!func) { // describe
CONFIG.logLevel(level, colorTitle(title))
} else {
const funcStart = clock()
const { error } = await catchAsync(withTimeoutAsync, func, CONFIG.timeout)
const funcDuration = clock() - funcStart
const timeLog = funcDuration > 64 ? colorTime(`(${time(funcDuration)})`) : ''
if (error) {
RESULT.failList.push({ titleStack: getTitleStack(title, upperScope), error })
CONFIG.logLevel(level, colorError(`[FAIL] ${title}`), timeLog)
CONFIG.logLevel(level, colorError(indentLine(error.stack || error, ' ')))
} else {
RESULT.passList.push({ title })
CONFIG.logLevel(level, colorText(title), timeLog)
}
}
})
CONFIG.log(colorMain([
`[TEST] done in ${time(clock() - runStart)}`,
` pass: ${RESULT.passList.length}`,
` fail: ${RESULT.failList.length}`
].join('\n')))
for (let index = 0, indexMax = RESULT.failList.length; index < indexMax; index++) {
const { titleStack, error } = RESULT.failList[ index ]
CONFIG.log(colorError(`[FAIL|${index}]`))
titleStack.forEach((title, level) => level && CONFIG.logLevel(level, colorError(title))) // skip root level
CONFIG.logLevel(titleStack.length, colorError(indentLine(error.stack || error, ' ')))
}
return RESULT
}
return {
TEST_SETUP, TEST_RUN,
describe, it, before, after, info
}
}
export { createTest }