85 lines
2.1 KiB
JavaScript
85 lines
2.1 KiB
JavaScript
import prettier from "prettier-local";
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import runPrettier from "../run-prettier.js";
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test("allows custom parser provided as object", async () => {
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const output = await prettier.format("1", {
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parser(text) {
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expect(text).toBe("1");
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return {
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type: "Literal",
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value: 2,
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raw: "2",
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};
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},
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});
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expect(output).toBe("2");
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});
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test("allows usage of prettier's supported parsers", async () => {
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const output = await prettier.format("foo ( )", {
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parser(text, parsers) {
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expect(typeof parsers.babel).toBe("function");
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const ast = parsers.babel(text);
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ast.program.body[0].expression.callee.name = "bar";
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return ast;
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},
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});
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expect(output).toBe("bar();\n");
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});
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test("parsers should allow omit optional arguments", async () => {
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let parsers;
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try {
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await prettier.format("{}", {
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parser(text, builtinParsers) {
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parsers = builtinParsers;
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},
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});
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} catch {
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// noop
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}
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expect(typeof parsers.babel).toBe("function");
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const code = {
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graphql: "type A {hero: Character}",
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default: "{}",
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};
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for (const [name, parse] of Object.entries(parsers)) {
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// Private parser should not be used by users
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if (name.startsWith("__")) {
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continue;
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}
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expect(() => parse(code[name] || code.default)).not.toThrow();
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}
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});
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test("allows add empty `trailingComments` array", async () => {
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const output = await prettier.format("(foo /* comment */)( )", {
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parser(text, parsers) {
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const ast = parsers.babel(text);
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// This may happens in this use case https://github.com/prettier/prettier/pull/5497#issuecomment-439841965
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// Simply simulate it
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const callExpression = ast.program.body[0].expression;
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callExpression.extra = { parenthesized: true };
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callExpression.trailingComments = [];
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return ast;
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},
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});
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expect(output).toBe("foo(/* comment */);\n");
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});
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describe("allows passing a string to resolve a parser", () => {
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runPrettier("./custom-parsers/", [
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"--end-of-line",
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"lf",
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"./custom-rename-input.js",
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"--parser",
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"./custom-rename-parser.cjs",
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]).test({
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status: 0,
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});
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});
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