bun.sh/test/js/bun/resolve/resolve-error.test.ts

import { describe, expect, it } from "bun:test";

describe("ResolveMessage", () => {
  it("position object does not segfault", async () => {
    try {
      await import("./file-importing-nonexistent-file.js");
    } catch (e: any) {
      expect(Bun.inspect(e.position).length > 0).toBe(true);
      expect(e.column).toBeGreaterThanOrEqual(0);
      expect(e.line).toBeGreaterThanOrEqual(0);
    }
  });

  it(".message is modifiable", async () => {
    try {
      await import("./file-importing-nonexistent-file.js");
    } catch (e: any) {
      const orig = e.message;
      expect(() => (e.message = "new message")).not.toThrow();
      expect(e.message).toBe("new message");
      expect(e.message).not.toBe(orig);
    }
  });

  it("has code for esm", async () => {
    try {
      await import("./file-importing-nonexistent-file.js");
    } catch (e: any) {
      expect(e.code).toBe("ERR_MODULE_NOT_FOUND");
    }
  });

  it("has code for require.resolve", () => {
    try {
      require.resolve("./file-importing-nonexistent-file.js");
    } catch (e: any) {
      expect(e.code).toBe("MODULE_NOT_FOUND");
    }
  });

  it("has code for require", () => {
    try {
      require("./file-importing-nonexistent-file.cjs");
    } catch (e: any) {
      expect(e.code).toBe("MODULE_NOT_FOUND");
    }
  });

  it("invalid data URL import", async () => {
    expect(async () => {
      // @ts-ignore
      await import("data:Hello%2C%20World!");
    }).toThrow("Cannot resolve invalid data URL");
  });

  it("doesn't crash", async () => {
    expect(async () => {
      // @ts-ignore
      await import(":://filesystem");
    }).toThrow("Cannot find module");
  });
});