feat: implement util.styleText (#9287)

* feat: implement util.styleText

* i forgot to test

src/js/node/util.js

@@ -240,6 +240,23 @@ var toUSVString = input => {
  return (input + "").toWellFormed();
 };
 
+function styleText(format, text) {
+ if (typeof text !== "string") {
+ const e = new Error(`The text argument must be of type string. Received type ${typeof text}`);
+ e.code = "ERR_INVALID_ARG_TYPE";
+ throw e;
+ }
+ const formatCodes = inspect.colors[format];
+ if (formatCodes == null) {
+ const e = new Error(
+ `The value "${typeof format === "symbol" ? format.description : format}" is invalid for argument 'format'. Reason: must be one of: ${Object.keys(inspect.colors).join(", ")}`,
+ );
+ e.code = "ERR_INVALID_ARG_VALUE";
+ throw e;
+ }
+ return `\u001b[${formatCodes[0]}m${text}\u001b[${formatCodes[1]}m`;
+}
+
 export default Object.assign(cjs_exports, {
  format,
  formatWithOptions,
@@ -273,4 +290,5 @@ export default Object.assign(cjs_exports, {
  TextDecoder,
  TextEncoder,
  parseArgs,
+ styleText,
 });

test/js/node/util/util.test.js

@@ -325,4 +325,36 @@ describe("util", () => {
  "wow({ obj: \u001B[33mtrue\u001B[39m })",
  );
  });
+
+ it("styleText", () => {
+ [undefined, null, false, 5n, 5, Symbol(), () => {}, {}, []].forEach(invalidOption => {
+ assert.throws(
+ () => {
+ util.styleText(invalidOption, "test");
+ },
+ {
+ code: "ERR_INVALID_ARG_VALUE",
+ },
+ );
+ assert.throws(
+ () => {
+ util.styleText("red", invalidOption);
+ },
+ {
+ code: "ERR_INVALID_ARG_TYPE",
+ },
+ );
+ });
+
+ assert.throws(
+ () => {
+ util.styleText("invalid", "text");
+ },
+ {
+ code: "ERR_INVALID_ARG_VALUE",
+ },
+ );
+
+ assert.strictEqual(util.styleText("red", "test"), "\u001b[31mtest\u001b[39m");
+ });
 });