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glue.spec.js
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glue.spec.js
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import {glue} from './glue'
test('empty string as a glue', () => {
const result = glue(
`
foo
bar
baz
`,
''
)
const expectedResult = 'foobarbaz'
expect(result).toBe(expectedResult)
})
test('case 0', () => {
const zero = 'node node_modules/jest'
const first = '--runInBand'
const last = '-- src/a.spec.js'
const flag = false
const result = glue(`
${zero}
${first}
${flag ? '--env=node' : ''}
${last}
`)
const expectedResult = `${zero} ${first} ${last}`
expect(result).toBe(expectedResult)
})
test('case 1', () => {
const zero = 'node node_modules/jest'
const first = '--runInBand'
const last = '-- src/a.spec.js'
const flag = true
const result = glue(`
${zero}
${first}
${flag ? '--env=node' : ''}
${last}
`)
const expectedResult = `${zero} ${first} --env=node ${last}`
expect(result).toBe(expectedResult)
})
test('case 2', () => {
const first = '--runInBand'
const result = glue(`
zero
${first}
last
`)
const expectedResult = `zero ${first} last`
expect(result).toBe(expectedResult)
})
test('case 3', () => {
const result = glue(`
foo
bar
baz
`)
const expectedResult = 'foo bar baz'
expect(result).toBe(expectedResult)
})
test('with glue', () => {
const result = glue(
`
foo
bar
baz
`,
'=='
)
const expectedResult = 'foo==bar==baz'
expect(result).toBe(expectedResult)
})