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JavaScript

const Mocha = require('mocha')
class Reporter {
constructor (runner) {
this.failedTests = []
runner.on(Mocha.Runner.constants.EVENT_RUN_BEGIN, () => {
console.log('Starting tests')
})
runner.on(Mocha.Runner.constants.EVENT_RUN_END, () => {
console.log('Tests finished')
console.log()
console.log('****************')
console.log('* TESTS REPORT *')
console.log('****************')
console.log()
console.log(`Executed ${runner.stats.suites} suites with ${runner.stats.tests} tests in ${runner.stats.duration} ms`)
console.log(` Passed: ${runner.stats.passes}`)
console.log(` Skipped: ${runner.stats.pending}`)
console.log(` Failed: ${runner.stats.failures}`)
if (this.failedTests.length > 0) {
console.log()
console.log(' Failed test details')
this.failedTests.forEach((failedTest, index) => {
console.log()
console.log(` ${index + 1}.'${failedTest.test.fullTitle()}'`)
console.log(` Name: ${failedTest.error.name}`)
console.log(` Message: ${failedTest.error.message}`)
console.log(` Code: ${failedTest.error.code}`)
console.log(` Stack: ${failedTest.error.stack}`)
})
}
console.log()
})
runner.on(Mocha.Runner.constants.EVENT_SUITE_BEGIN, (suite) => {
if (suite.root) {
return
}
console.log(`Starting suite '${suite.title}'`)
})
runner.on(Mocha.Runner.constants.EVENT_SUITE_END, (suite) => {
if (suite.root) {
return
}
console.log(`Suite '${suite.title}' finished`)
console.log()
})
runner.on(Mocha.Runner.constants.EVENT_TEST_BEGIN, (test) => {
console.log(`Starting test '${test.title}'`)
})
runner.on(Mocha.Runner.constants.EVENT_TEST_PASS, (test) => {
console.log(`Test '${test.title}' passed in ${test.duration} ms`)
})
runner.on(Mocha.Runner.constants.EVENT_TEST_PENDING, (test) => {
console.log(`Test '${test.title}' skipped in ${test.duration} ms`)
})
runner.on(Mocha.Runner.constants.EVENT_TEST_FAIL, (test, error) => {
this.failedTests.push({ test, error })
console.log(`Test '${test.title}' failed in ${test.duration} ms with ${error}`)
})
runner.on(Mocha.Runner.constants.EVENT_TEST_END, (test) => {
console.log()
})
}
}
module.exports = Reporter