$ gnpm install @tapjs/before
@tapjs/before
A default tap plugin providing t.before()
.
This plugin is installed with tap by default. If you had
previously removed it, you can tap plugin add @tapjs/before
to
bring it back.
import t from 'tap'
t.before(() => {
// this will run before the tests in this file start
})
If the method returns a promise, it will be awaited before moving on to the next test.
A t.before()
method will run prior to any subsequent child
tests. If it's called before any child tests have started, then
it will be run right away.
So, this test:
import t from 'tap'
t.before(() => {
console.error('before initial')
})
t.test('first test', t => {
t.before(async () => {
// this will wait before moving on
await new Promise(res => setTimeout(res, 100))
console.error('before in first test')
})
console.error('in first test')
t.test('child test', (t) => {
console.error('child of first test')
t.end()
})
t.end()
})
t.before(() => {
console.error('before between')
})
t.test('second test', t => {
console.error('in second test')
t.end()
})
will print:
before initial
in first test
before in first test
child of first test
before between
in second test
Essentially, t.before()
is a bit like a child test method that
doesn't get a Test
object as an argument.
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