Better RetryErrors

packages/stack-shared/src/utils/errors.tsx

@@ -82,10 +82,7 @@ StackAssertionError.prototype.name = "StackAssertionError";
 
 export function errorToNiceString(error: unknown): string {
   if (!(error instanceof Error)) return `${typeof error}<${nicify(error)}>`;
-  let stack = error.stack ?? "";
-  const toString = error.toString();
-  if (!stack.startsWith(toString)) stack = `${toString}\n${stack}`;  // some browsers don't include the error message in the stack, some do
-  return `${stack} ${nicify(Object.fromEntries(Object.entries(error)), { maxDepth: 8 })}`;
+  return nicify(error, { maxDepth: 8 });
 }
 
 

packages/stack-shared/src/utils/hashes.tsx

@@ -17,7 +17,7 @@ export async function hashPassword(password: string) {
   return await bcrypt.hash(password, salt);
 }
 
-export async function comparePassword(password: string, hash: string) {
+export async function comparePassword(password: string, hash: string): Promise<boolean> {
   switch (await getPasswordHashAlgorithm(hash)) {
     case "bcrypt": {
       return await bcrypt.compare(password, hash);

packages/stack-shared/src/utils/results.tsx

@@ -1,5 +1,5 @@
 import { wait } from "./promises";
-import { deindent } from "./strings";
+import { deindent, nicify } from "./strings";
 
 export type Result<T, E = unknown> =
   | {
@@ -305,7 +305,7 @@ import.meta.vitest?.test("mapResult", ({ expect }) => {
 
 class RetryError extends AggregateError {
   constructor(public readonly errors: unknown[]) {
-    const strings = errors.map(e => String(e));
+    const strings = errors.map(e => nicify(e));
     const isAllSame = strings.length > 1 && strings.every(s => s === strings[0]);
     super(
       errors,
@@ -314,10 +314,10 @@ class RetryError extends AggregateError {
 
       ${isAllSame ? deindent`
         Attempts 1-${errors.length}:
-          ${errors[0]}
-      ` : errors.map((e, i) => deindent`
+          ${strings[0]}
+      ` : strings.map((s, i) => deindent`
           Attempt ${i + 1}:
-            ${e}
+            ${s}
         `).join("\n\n")}
       `,
       { cause: errors[errors.length - 1] }

packages/stack-shared/src/utils/strings.nicify.test.ts

@@ -0,0 +1,245 @@
+import { describe, expect, test } from "vitest";
+import { NicifyOptions, deindent, nicify } from "./strings";
+
+describe("nicify", () => {
+  describe("primitive values", () => {
+    test("numbers", () => {
+      expect(nicify(123)).toBe("123");
+      expect(nicify(123n)).toBe("123n");
+    });
+
+    test("strings", () => {
+      expect(nicify("hello")).toBe('"hello"');
+    });
+
+    test("booleans", () => {
+      expect(nicify(true)).toBe("true");
+      expect(nicify(false)).toBe("false");
+    });
+
+    test("null and undefined", () => {
+      expect(nicify(null)).toBe("null");
+      expect(nicify(undefined)).toBe("undefined");
+    });
+
+    test("symbols", () => {
+      expect(nicify(Symbol("test"))).toBe("Symbol(test)");
+    });
+  });
+
+  describe("arrays", () => {
+    test("empty array", () => {
+      expect(nicify([])).toBe("[]");
+    });
+
+    test("single-element array", () => {
+      expect(nicify([1])).toBe("[1]");
+    });
+
+    test("single-element array with long content", () => {
+      expect(nicify(["123123123123123"])).toBe('["123123123123123"]');
+    });
+
+    test("flat array", () => {
+      expect(nicify([1, 2, 3])).toBe("[1, 2, 3]");
+    });
+
+    test("longer array", () => {
+      expect(nicify([10000, 2, 3])).toBe(deindent`
+        [
+          10000,
+          2,
+          3,
+        ]
+      `);
+    });
+
+    test("nested array", () => {
+      expect(nicify([1, [2, 3]])).toBe(deindent`
+        [
+          1,
+          [2, 3],
+        ]
+      `);
+    });
+  });
+
+  describe("objects", () => {
+    test("empty object", () => {
+      expect(nicify({})).toBe("{}");
+    });
+
+    test("simple object", () => {
+      expect(nicify({ a: 1 })).toBe('{ "a": 1 }');
+    });
+
+    test("multiline object", () => {
+      expect(nicify({ a: 1, b: 2 })).toBe(deindent`
+        {
+          "a": 1,
+          "b": 2,
+        }
+      `);
+    });
+  });
+
+  describe("custom classes", () => {
+    test("class instance", () => {
+      class TestClass {
+        constructor(public value: number) {}
+      }
+      expect(nicify(new TestClass(42))).toBe('TestClass { "value": 42 }');
+    });
+  });
+
+  describe("built-in objects", () => {
+    test("URL", () => {
+      expect(nicify(new URL("https://example.com"))).toBe('URL("https://example.com/")');
+    });
+
+    test("TypedArrays", () => {
+      expect(nicify(new Uint8Array([1, 2, 3]))).toBe("Uint8Array([1,2,3])");
+      expect(nicify(new Int32Array([1, 2, 3]))).toBe("Int32Array([1,2,3])");
+    });
+
+    test("Error objects", () => {
+      const error = new Error("test error");
+      const nicifiedError = nicify({ error });
+      expect(nicifiedError).toMatch(new RegExp(deindent`
+        ^\{
+          "error": Error: test error
+            Stack:
+              at (.|\\n)*
+        \}$
+      `));
+    });
+
+    test("Error objects with cause and an extra property", () => {
+      const error = new Error("test error", { cause: new Error("cause") });
+      (error as any).extra = "something";
+      const nicifiedError = nicify(error, { lineIndent: "--" });
+      expect(nicifiedError).toMatch(new RegExp(deindent`
+        ^Error: test error
+        --Stack:
+        ----at (.|\\n)+
+        --Extra properties: \{ "extra": "something" \}
+        --Cause:
+        ----Error: cause
+        ------Stack:
+        --------at (.|\\n)+$
+      `));
+    });
+
+    test("Headers", () => {
+      const headers = new Headers();
+      headers.append("Content-Type", "application/json");
+      headers.append("Accept", "text/plain");
+      expect(nicify(headers)).toBe(deindent`
+        Headers {
+          "accept": "text/plain",
+          "content-type": "application/json",
+        }`
+      );
+    });
+  });
+
+  describe("multiline strings", () => {
+    test("basic multiline", () => {
+      expect(nicify("line1\nline2")).toBe('deindent`\n  line1\n  line2\n`');
+    });
+
+    test("multiline with trailing newline", () => {
+      expect(nicify("line1\nline2\n")).toBe('deindent`\n  line1\n  line2\n` + "\\n"');
+    });
+  });
+
+  describe("circular references", () => {
+    test("object with self reference", () => {
+      const circular: any = { a: 1 };
+      circular.self = circular;
+      expect(nicify(circular)).toBe(deindent`
+        {
+          "a": 1,
+          "self": Ref<value>,
+        }`
+      );
+    });
+  });
+
+  describe("configuration options", () => {
+    test("maxDepth", () => {
+      const deep = { a: { b: { c: { d: { e: 1 } } } } };
+      expect(nicify(deep, { maxDepth: 2 })).toBe('{ "a": { "b": { ... } } }');
+    });
+
+    test("lineIndent", () => {
+      expect(nicify({ a: 1, b: 2 }, { lineIndent: "    " })).toBe(deindent`
+        {
+            "a": 1,
+            "b": 2,
+        }
+      `);
+    });
+
+    test("hideFields", () => {
+      expect(nicify({ a: 1, b: 2, secret: "hidden" }, { hideFields: ["secret"] })).toBe(deindent`
+        {
+          "a": 1,
+          "b": 2,
+          <some fields may have been hidden>,
+        }
+      `);
+    });
+  });
+
+  describe("custom overrides", () => {
+    test("override with custom type", () => {
+      expect(nicify({ type: "special" }, {
+        overrides: ((value: unknown) => {
+          if (typeof value === "object" && value && "type" in value && (value as any).type === "special") {
+            return "SPECIAL";
+          }
+          return null;
+        }) as NicifyOptions["overrides"]
+      })).toBe("SPECIAL");
+    });
+  });
+
+  describe("functions", () => {
+    test("named function", () => {
+      expect(nicify(function namedFunction() {})).toBe("function namedFunction(...) { ... }");
+    });
+
+    test("arrow function", () => {
+      expect(nicify(() => {})).toBe("(...) => { ... }");
+    });
+  });
+
+  describe("Nicifiable interface", () => {
+    test("object implementing Nicifiable", () => {
+      const nicifiable = {
+        value: 42,
+        getNicifiableKeys() {
+          return ["value"];
+        },
+        getNicifiedObjectExtraLines() {
+          return ["// custom comment"];
+        }
+      };
+      expect(nicify(nicifiable)).toBe(deindent`
+        {
+          "value": 42,
+          // custom comment,
+        }
+      `);
+    });
+  });
+
+  describe("unknown types", () => {
+    test("object without prototype", () => {
+      const unknownType = Object.create(null);
+      unknownType.value = "test";
+      expect(nicify(unknownType)).toBe('{ "value": "test" }');
+    });
+  });
+});