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import { BError } from "./berror.ts";import { assertEquals, assertStringContains } from "https://deno.land/std/testing/asserts.ts";
Deno.test("onlyMesesage", function () {  const e = new BError("A");  assertEquals(e.message, "A");});
Deno.test("messageAndCause", function () {  const e = new BError("A", Error("B"));  assertEquals(e.message, "A: B");});
Deno.test("full", function () {  const e = new BError("A", Error("B"), { foo: "bar" });  assertEquals(e.message, "A: B");});
Deno.test("simpleChain", function () {  const e = new BError("A", new BError("B", new Error("C")));  assertEquals(e.message, "A: B: C");});
Deno.test("metadata", function () {  const e1 = new BError("A", undefined, { foo: "bar", age: 42 });  const e2 = new BError("A", e1, { foo: "baz", name: "Deno" });  assertEquals(e2.metadata, { foo: "baz", age: 42, name: "Deno" });});
Deno.test("nonObject", function () {  const e = new BError("A", ({ foo: "bar", age: 42 }) as any);  assertEquals(    e.message,    `A: non-error object thrown: {"foo":"bar","age":42}`  );});
const a = () => {throw Error("original error")}const b = () => a()const c = () => {  try {b()} catch (e) { throw new BError('could not run b', e)}}
Deno.test("has original stack", function () {  try {c()} catch (e) {    assertStringContains(e.stack, "original error");  }});