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index.js
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index.js
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const preset = require(`../`)
const path = require(`path`)
it(`Specifies proper presets and plugins for test stage`, () => {
const { presets, plugins } = preset()
expect(presets).toEqual([
[
expect.stringContaining(path.join(`@babel`, `preset-env`)),
{
exclude: [`transform-typeof-symbol`],
corejs: 2,
loose: true,
modules: `commonjs`,
useBuiltIns: `usage`,
targets: {
node: `current`,
},
},
],
[
expect.stringContaining(path.join(`@babel`, `preset-react`)),
{
development: false,
pragma: `React.createElement`,
useBuiltIns: true,
},
],
])
expect(plugins).toEqual([
[
expect.stringContaining(
path.join(`@babel`, `plugin-proposal-class-properties`)
),
{ loose: true },
],
expect.stringContaining(`babel-plugin-macros`),
expect.stringContaining(
path.join(`@babel`, `plugin-syntax-dynamic-import`)
),
[
expect.stringContaining(path.join(`@babel`, `plugin-transform-runtime`)),
{
absoluteRuntimePath: expect.stringContaining(
path.join(`@babel`, `runtime`)
),
corejs: false,
helpers: true,
regenerator: true,
useESModules: false,
},
],
[
expect.stringContaining(path.join(`@babel`, `plugin-transform-spread`)),
{
loose: false,
},
],
expect.stringContaining(`babel-plugin-dynamic-import-node`),
])
})
it(`Specifies proper presets and plugins for build-html stage`, () => {
const currentGatsbyBuildStage = process.env.GATSBY_BUILD_STAGE
let presets, plugins
try {
process.env.GATSBY_BUILD_STAGE = `build-html`
const config = preset()
presets = config.presets
plugins = config.plugins
} finally {
process.env.GATSBY_BUILD_STAGE = currentGatsbyBuildStage
}
expect(presets).toEqual([
[
expect.stringContaining(path.join(`@babel`, `preset-env`)),
{
exclude: [`transform-typeof-symbol`],
corejs: 2,
loose: true,
modules: false,
useBuiltIns: `usage`,
targets: {
node: `current`,
},
},
],
[
expect.stringContaining(path.join(`@babel`, `preset-react`)),
{
development: false,
pragma: `React.createElement`,
useBuiltIns: true,
},
],
])
expect(plugins).toEqual([
[
expect.stringContaining(
path.join(`@babel`, `plugin-proposal-class-properties`)
),
{ loose: true },
],
expect.stringContaining(`babel-plugin-macros`),
expect.stringContaining(
path.join(`@babel`, `plugin-syntax-dynamic-import`)
),
[
expect.stringContaining(path.join(`@babel`, `plugin-transform-runtime`)),
{
absoluteRuntimePath: expect.stringContaining(
path.join(`@babel`, `runtime`)
),
helpers: false,
regenerator: true,
corejs: false,
useESModules: true,
},
],
[
expect.stringContaining(path.join(`@babel`, `plugin-transform-spread`)),
{
loose: false,
},
],
expect.stringContaining(`babel-plugin-dynamic-import-node`),
])
})
it(`Allows to configure browser targets`, () => {
const targets = `last 1 version`
const { presets } = preset(null, {
targets,
})
expect(presets[0]).toEqual([
expect.stringContaining(path.join(`@babel`, `preset-env`)),
{
exclude: [`transform-typeof-symbol`],
corejs: 2,
loose: true,
modules: false,
useBuiltIns: `usage`,
targets,
},
])
})