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plugin-ordering.test.js
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plugin-ordering.test.js
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import * as babel from "@babel/core";
import proposalClassStaticBlock from "..";
describe("plugin ordering", () => {
it("should throw when @babel/plugin-proposal-class-static-block is after class features plugin", () => {
const source = `class Foo {
static {
this.foo = Foo.bar;
}
static bar = 42;
}
`;
expect(() => {
babel.transform(source, {
filename: "example.js",
highlightCode: false,
configFile: false,
babelrc: false,
plugins: [
"@babel/plugin-proposal-class-properties",
proposalClassStaticBlock,
],
});
})
.toThrow(`Incorrect plugin order, \`@babel/plugin-proposal-class-static-block\` should be placed before class features plugins
{
"plugins": [
"@babel/plugin-proposal-class-static-block",
"@babel/plugin-proposal-private-property-in-object",
"@babel/plugin-proposal-private-methods",
"@babel/plugin-proposal-class-properties",
]
}
1 | class Foo {
> 2 | static {
| ^
3 | this.foo = Foo.bar;
4 | }
5 | static bar = 42;`);
});
});