// The examples use Ava but any test runner works (Jest, Mocha, Jasmine, etc.)
import test from 'ava'

import multiply from './multiply.js'

import { each } from 'test-each'

// The code we are testing

// Repeat test using different inputs and expected outputs
each(
  [
    { first: 2, second: 2, output: 4 },
    { first: 3, second: 3, output: 9 },
  ],
  ({ title }, { first, second, output }) => {
    // Test titles will be:
    //    should multiply | {"first": 2, "second": 2, "output": 4}
    //    should multiply | {"first": 3, "second": 3, "output": 9}
    test(`should multiply | ${title}`, (t) => {
      t.is(multiply(first, second), output)
    })
  },
)

// Snapshot testing. The `output` is automatically set on the first run,
// then re-used in the next runs.
each(
  [
    { first: 2, second: 2 },
    { first: 3, second: 3 },
  ],
  ({ title }, { first, second }) => {
    test(`should multiply outputs | ${title}`, (t) => {
      t.snapshot(multiply(first, second))
    })
  },
)

// Cartesian product.
// Run this test 4 times using every possible combination of inputs
each([0.5, 10], [2.5, 5], ({ title }, first, second) => {
  test(`should mix integers and floats | ${title}`, (t) => {
    t.is(typeof multiply(first, second), 'number')
  })
})

// Fuzz testing. Run this test 1000 times using different numbers.
each(1000, Math.random, ({ title }, index, randomNumber) => {
  test(`should correctly multiply floats | ${title}`, (t) => {
    t.is(multiply(randomNumber, 1), randomNumber)
  })
})

import { each } from 'test-each'

const inputs = [
  ['red', 'blue'],
  [0, 5, 50],
]
each(...inputs, (info, color, number) => {})

import { each } from 'test-each'

each([{ color: 'red' }, { color: 'blue' }], ({ title }, param) => {
  // Test titles will be:
  //    should test color | {"color": "red"}
  //    should test color | {"color": "blue"}
  test(`should test color | ${title}`, () => {})
})

// Plain objects can override this using a `title` property
each(
  [
    { color: 'red', title: 'Red' },
    { color: 'blue', title: 'Blue' },
  ],
  ({ title }, param) => {
    // Test titles will be:
    //    should test color | Red
    //    should test color | Blue
    test(`should test color | ${title}`, () => {})
  },
)

// The `info` argument can be used for dynamic titles
each([{ color: 'red' }, { color: 'blue' }], (info, param) => {
  // Test titles will be:
  //    should test color | 0 red
  //    should test color | 1 blue
  test(`should test color | ${info.index} ${param.color}`, () => {})
})

import { each } from 'test-each'

// Run callback five times: a -> b -> c -> d -> e
each(['a', 'b', 'c', 'd', 'e'], (info, param) => {})

// Run callback six times: a c -> a d -> a e -> b c -> b d -> b e
each(['a', 'b'], ['c', 'd', 'e'], (info, param, otherParam) => {})

// Nested arrays are not iterated.
// Run callback only twice: ['a', 'b'] -> ['c', 'd', 'e']
each(
  [
    ['a', 'b'],
    ['c', 'd', 'e'],
  ],
  (info, param) => {},
)

import { each } from 'test-each'

// Run callback with a different random number each time
each(['red', 'green', 'blue'], Math.random, (info, color, randomNumber) => {})

// Input functions are called with the same arguments as the callback
each(
  ['02', '15', '30'],
  ['January', 'February', 'March'],
  ['1980', '1981'],
  (info, day, month, year) => `${day}/${month}/${year}`,
  (info, day, month, year, date) => {},
)

import faker from 'faker'

// Run callback 1000 times with a random UUID and color each time
each(
  1000,
  faker.random.uuid,
  faker.random.arrayElement(['green', 'red', 'blue']),
  (info, randomUuid, randomColor) => {},
)

// `info.index` can be used as a seed for reproducible randomness.
// The following series of 1000 UUIDs will remain the same across executions.
each(
  1000,
  ({ index }) => faker.seed(index) && faker.random.uuid(),
  (info, randomUuid) => {},
)

import { each } from 'test-each'

// The `output` is automatically set on the first run,
// then re-used in the next runs.
each(
  [
    { first: 2, second: 2 },
    { first: 3, second: 3 },
  ],
  ({ title }, { first, second }) => {
    test(`should multiply outputs | ${title}`, (t) => {
      t.snapshot(multiply(first, second))
    })
  },
)

import { each } from 'test-each'

each(
  ['green', 'red', 'blue'],
  [{ active: true }, { active: false }],
  (info, color, param) => {
    // This should not be done, as the objects are re-used in several iterations
    param.active = false

    // But this is safe since it's a copy
    const newParam = { ...param }
    newParam.active = false
  },
)

import { iterable } from 'test-each'

const combinations = iterable(
  ['green', 'red', 'blue'],
  [{ active: true }, { active: false }],
)

for (const [{ title }, color, param] of combinations) {
  test(`should test color | ${title}`, () => {})
}

const array = [...combinations]

array.forEach(([{ title }, color, param]) => {
  test(`should test color | ${title}`, () => {})
})