css/tests/index.js

const config = require("../")
const stylelint = require("stylelint")
const test = require("ava")
const fs = require("fs")

const validCss =
`.selector-x { width: 10%; }
.selector-y { width: 20%; }
.selector-z { width: 30%; }
`

const invalidCss =
`.foo {
  top: .2em;
}
`

test("stylelint runs with config", t => {
  return stylelint.lint({
    code: "a { font-weight: bold; }",
    config: config
  })
    .then(data => {
      t.truthy(true, "config works")
      t.truthy(data, "data exists")
    })
})

test("no warnings with valid css", t => {
  return stylelint.lint({
    code: validCss,
    config: config,
  })
    .then(data => {
      const { errored, results } = data
      const { warnings } = results[0]
      t.falsy(errored, "no errored")
      t.is(warnings.length, 0, "flags no warnings")
    })
})

test("a warning with invalid css", t => {
  return stylelint.lint({
    code: invalidCss,
    config: config,
  })
    .then(data => {
      const { errored, results } = data
      const { warnings } = results[0]
      t.truthy(errored, "errored")
      t.is(warnings.length, 1, "flags one warning")
      t.is(warnings[0].text, "Expected a leading zero (number-leading-zero)", "correct warning text")
    })
})

test("No deprecated config", t => {
  const utilities = fs.readFileSync("./node_modules/primer-utilities/lib/borders.scss")

  return stylelint.lint({
    code: utilities.toString(),
    config: config,
    syntax: "scss"
  })
    .then(data => {
      const { errored, results } = data
      t.not(results.length, 0, "Did not find any resutls")
      t.is(results[0].deprecations.length, 0, `Expected there to be no deprecated config warnings. Please fix these:\n\n${results[0].deprecations.map((d) => d.text).join("\n")}`)
    })
})