Export error classes and refactor tests to use exposed functions

By utilising functions exposed via `mod.ts` as much as possible in tests, errors related to imports can be caught early

Author: sebastianquek

CHANGELOG.md

@@ -10,6 +10,8 @@ and this project adheres to
 
 ### Added
 
+- Export error classes.
+
 ### Changed
 
 ### Fixed

mod.ts

@@ -1,6 +1,8 @@
 export type { Config } from "./src/config.ts";
 export { config } from "./src/config.ts";
 
+export { InvalidTimeoutError, MissingApiKeyError } from "./src/errors.ts";
+
 export type {
   AccountApiParameters,
   AccountInformation,

tests/engines/google_test.ts

@@ -22,14 +22,14 @@ import {
   assertStringIncludes,
 } from "https://deno.land/std@0.170.0/testing/asserts.ts";
 import { _internals } from "../../src/utils.ts";
-import { MissingApiKeyError } from "../../src/errors.ts";
 import {
+  config,
   getHtml,
   getHtmlBySearchId,
   getJson,
   getJsonBySearchId,
-} from "../../src/serpapi.ts";
-import { config } from "../../src/config.ts";
+  MissingApiKeyError,
+} from "../../mod.ts";
 
 loadSync({ export: true });
 const SERPAPI_TEST_KEY = Deno.env.get("SERPAPI_TEST_KEY") ?? "";

tests/serpapi_test.ts

@@ -12,10 +12,14 @@ import {
   assertRejects,
 } from "https://deno.land/std@0.170.0/testing/asserts.ts";
 import { Stub, stub } from "https://deno.land/std@0.170.0/testing/mock.ts";
-import { InvalidTimeoutError, MissingApiKeyError } from "../src/errors.ts";
-import { getAccount, getLocations } from "../src/serpapi.ts";
 import { _internals } from "../src/utils.ts";
-import { config } from "../src/config.ts";
+import {
+  config,
+  getAccount,
+  getLocations,
+  InvalidTimeoutError,
+  MissingApiKeyError,
+} from "../mod.ts";
 
 loadSync({ export: true });
 const SERPAPI_TEST_KEY = Deno.env.get("SERPAPI_TEST_KEY") ?? "";

tests/validators_test.ts

@@ -8,8 +8,7 @@ import {
   assertThrows,
 } from "https://deno.land/std@0.170.0/testing/asserts.ts";
 import { validateApiKey, validateTimeout } from "../src/validators.ts";
-import { config } from "../src/config.ts";
-import { InvalidTimeoutError, MissingApiKeyError } from "../src/errors.ts";
+import { config, InvalidTimeoutError, MissingApiKeyError } from "../mod.ts";
 
 describe("validateApiKey", () => {
   afterEach(() => {