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plugins.test.js
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plugins.test.js
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"use strict"
const path = require("path")
const postcss = require("postcss")
const stylelint = require("..")
const cssWithFoo = ".foo {}"
const cssWithoutFoo = ".bar {}"
const cssWithFooAndBar = ".foo {}\n.bar {}"
const configRelative = {
plugins: ["./fixtures/plugin-warn-about-foo"],
rules: {
"plugin/warn-about-foo": "always",
"block-no-empty": true,
},
}
const configAbsolute = {
plugins: [path.join(__dirname, "./fixtures/plugin-warn-about-foo")],
rules: {
"plugin/warn-about-foo": "always",
"block-no-empty": true,
},
}
const configExtendRelative = {
extends: ["./fixtures/config-relative-plugin"],
}
const configRelativeAndExtendRelative = {
extends: ["./fixtures/config-relative-plugin"],
plugins: ["./fixtures/plugin-warn-about-bar"],
rules: {
"plugin/warn-about-bar": "always",
},
}
const processorRelative = postcss().use(stylelint({ config: configRelative, configBasedir: __dirname }))
const processorAbsolute = postcss().use(stylelint({ config: configAbsolute }))
const processorExtendRelative = postcss().use(stylelint({ config: configExtendRelative, configBasedir: __dirname }))
const processorRelativeAndExtendRelative = postcss().use(stylelint({ config: configRelativeAndExtendRelative, configBasedir: __dirname }))
it("one plugin runs", () => {
return processorRelative.process(cssWithFoo).then(result => {
expect(result.warnings().length).toBe(2)
expect(result.warnings()[0].text).toBe("found .foo (plugin/warn-about-foo)")
expect(result.warnings()[0].node).toBeTruthy()
})
})
it("another plugin runs", () => {
return processorRelative.process(cssWithoutFoo).then(result => {
expect(result.warnings().length).toBe(1)
expect(result.warnings()[0].text).toBe("Unexpected empty block (block-no-empty)")
})
})
it("plugin with absolute path and no configBasedir", () => {
return processorAbsolute.process(cssWithFoo).then(result => {
expect(result.warnings().length).toBe(2)
expect(result.warnings()[0].text).toBe("found .foo (plugin/warn-about-foo)")
expect(result.warnings()[0].node).toBeTruthy()
})
})
it("config extending another config that invokes a plugin with a relative path", () => {
return processorExtendRelative.process(cssWithFoo).then(result => {
expect(result.warnings().length).toBe(1)
expect(result.warnings()[0].text).toBe("found .foo (plugin/warn-about-foo)")
expect(result.warnings()[0].node).toBeTruthy()
})
})
it("config with its own plugins extending another config that invokes a plugin with a relative path", () => {
return processorRelativeAndExtendRelative.process(cssWithFooAndBar).then(result => {
expect(result.warnings().length).toBe(2)
expect(result.warnings()[0].text).toBe("found .bar (plugin/warn-about-bar)")
expect(result.warnings()[1].text).toBe("found .foo (plugin/warn-about-foo)")
expect(result.warnings()[0].node).toBeTruthy()
})
})
describe("plugin using exposed rules via stylelint.rules", () => {
const cssWithDirectiveLower = "/** @@check-color-hex-case */ a { color: #eee; }"
const cssWithDirectiveUpper = "/** @@check-color-hex-case */ a { color: #EEE; }"
const cssWithoutDirectiveLower = "a { color: #eee; }"
const cssWithoutDirectiveUpper = "a { color: #EEE; }"
const config = expectation => ({
config: {
plugins: [path.join(__dirname, "fixtures/plugin-conditionally-check-color-hex-case")],
rules: {
"plugin/conditionally-check-color-hex-case": expectation,
},
},
})
it("with uppercase expectation and lowercase color", () => {
return postcss().use(stylelint(config("upper"))).process(cssWithDirectiveLower).then(result => {
expect(result.warnings().length).toBe(1)
expect(result.warnings()[0].text).toBe("Expected \"#eee\" to be \"#EEE\" (color-hex-case)")
})
})
it("with uppercase expectation and uppercase color", () => {
return postcss().use(stylelint(config("upper"))).process(cssWithDirectiveUpper).then(result => {
expect(result.warnings().length).toBe(0)
})
})
it("with lowercase expectation and uppercase color", () => {
return postcss().use(stylelint(config("lower"))).process(cssWithDirectiveUpper).then(result => {
expect(result.warnings().length).toBe(1)
expect(result.warnings()[0].text).toBe("Expected \"#EEE\" to be \"#eee\" (color-hex-case)")
})
})
it("with lowercase expectation and lowercase color", () => {
return postcss().use(stylelint(config("lower"))).process(cssWithDirectiveLower).then(result => {
expect(result.warnings().length).toBe(0)
})
})
it("with uppercase expectation and lowercase color without directive", () => {
return postcss().use(stylelint(config("upper"))).process(cssWithoutDirectiveLower).then(result => {
expect(result.warnings().length).toBe(0)
})
})
it("with uppercase expectation and uppercase color without directive", () => {
return postcss().use(stylelint(config("lower"))).process(cssWithoutDirectiveUpper).then(result => {
expect(result.warnings().length).toBe(0)
})
})
})
describe("module providing an array of plugins", () => {
const config = {
plugins: [path.join(__dirname, "fixtures/plugin-array")],
rules: {
"plugin/conditionally-check-color-hex-case": "upper",
"plugin/warn-about-foo": "always",
},
}
it("first plugin works", () => {
return postcss().use(stylelint(config)).process("@@check-color-hex-case a { color: #eee; }").then(result => {
expect(result.warnings().length).toBe(1)
expect(result.warnings()[0].text).toBe("Expected \"#eee\" to be \"#EEE\" (color-hex-case)")
})
})
it("second plugin works", () => {
return postcss().use(stylelint(config)).process(".foo {}").then(result => {
expect(result.warnings().length).toBe(1)
expect(result.warnings()[0].text).toBe("found .foo (plugin/warn-about-foo)")
})
})
})
it("slashless plugin causes configuration error", () => {
const config = {
plugins: [path.join(__dirname, "fixtures/plugin-slashless-warn-about-foo")],
rules: {
"slashless-warn-about-foo": true,
},
}
return postcss().use(stylelint(config)).process(".foo {}").then(() => {
throw new Error("should not have succeeded")
}).catch(err => {
expect(err.message.indexOf("stylelint v7+ requires plugin rules to be namspaced")).toBe(0)
})
})
it("plugin with primary option array", () => {
const config = {
plugins: [path.join(__dirname, "fixtures/plugin-primary-array")],
rules: {
"plugin/primary-array": [ "foo", "bar" ],
},
}
return postcss().use(stylelint(config)).process("a {}").then(result => {
expect(result.warnings().length).toBe(0)
})
})
it("plugin with primary option array within options array", () => {
const config = {
plugins: [path.join(__dirname, "fixtures/plugin-primary-array")],
rules: {
"plugin/primary-array": [ [ "foo", "bar" ], { something: true } ],
},
}
return postcss().use(stylelint(config)).process("a {}").then(result => {
expect(result.warnings().length).toBe(0)
})
})
it("plugin with async rule", () => {
const config = {
plugins: [path.join(__dirname, "fixtures/plugin-async")],
rules: {
"plugin/async": true,
},
}
return postcss().use(stylelint(config)).process("a {}").then(result => {
expect(result.warnings().length).toBe(1)
})
})
describe("loading a plugin from process.cwd", () => {
let actualCwd
let result
const config = {
plugins: ["./fixtures/plugin-warn-about-foo"],
rules: {
"plugin/warn-about-foo": "always",
},
}
beforeAll(() => {
actualCwd = process.cwd()
process.chdir(__dirname)
})
afterAll(() => {
process.chdir(actualCwd)
})
beforeEach(() => {
return postcss().use(stylelint(config)).process(".foo {}").then(data => result = data)
})
it("error is caught", () => {
expect(result.warnings().length).toBe(1)
})
it("error is correct", () => {
expect(result.warnings()[0].rule).toBe("plugin/warn-about-foo")
})
})