60 lines
1.5 KiB
JavaScript
60 lines
1.5 KiB
JavaScript
"use strict";
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const prettier = require("prettier-local");
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const runPrettier = require("../runPrettier");
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test("allows custom parser provided as object", () => {
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const output = prettier.format("1", {
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parser(text) {
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expect(text).toEqual("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).toEqual("2");
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});
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test("allows usage of prettier's supported parsers", () => {
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const output = prettier.format("foo ( )", {
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parser(text, parsers) {
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expect(typeof parsers.babel).toEqual("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).toEqual("bar();\n");
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});
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test("allows add empty `trailingComments` array", () => {
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const output = 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).toEqual("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",
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]).test({
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status: 0,
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});
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});
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