Add 1.x gates

Author: WWRS

testing/_assert_inline_snapshot.ts

@@ -17,6 +17,9 @@ import {
   serialize,
 } from "./_snapshot_utils.ts";
 
+// TODO (WWRS): Remove this when we drop support for Deno 1.x
+export const LINT_SUPPORTED = !Deno.version.deno.startsWith("1.");
+
 /** The options for {@linkcode assertInlineSnapshot}. */
 
 export interface InlineSnapshotOptions<T = unknown>
@@ -136,6 +139,12 @@ class AssertInlineSnapshotContext {
     const snapshotsUpdated = Object.keys(this.#lineColumnToSnapshot).length;
     if (snapshotsUpdated === 0) return;
 
+    if (!LINT_SUPPORTED) {
+      throw new Error(
+        "Deno versions before 2.2.0 do not support Deno.lint, which is required to update inline snapshots",
+      );
+    }
+
     const testFilePath = fromFileUrl(this.#testFileUrl);
     ensureFileSync(testFilePath);
     const file = Deno.readTextFileSync(testFilePath);
@@ -237,8 +246,8 @@ class AssertInlineSnapshotContext {
  * ```ts
  * import { assertInlineSnapshot } from "@std/testing/snapshot";
  *
- * Deno.test("snapshot", async (t) => {
- *   await assertInlineSnapshot<number>(t, 2, `2`);
+ * Deno.test("snapshot", (t) => {
+ *   assertInlineSnapshot<number>(t, 2, `2`);
  * });
  * ```
  * @typeParam T The type of the snapshot
@@ -263,8 +272,8 @@ export function assertInlineSnapshot<T>(
  * ```ts
  * import { assertInlineSnapshot } from "@std/testing/snapshot";
  *
- * Deno.test("snapshot", async (t) => {
- *   await assertInlineSnapshot<number>(t, 2, `2`);
+ * Deno.test("snapshot", (t) => {
+ *   assertInlineSnapshot<number>(t, 2, `2`);
  * });
  * ```
  * @typeParam T The type of the snapshot
@@ -354,8 +363,8 @@ export function assertInlineSnapshot(
  *   format: false
  * });
  *
- * Deno.test("a snapshot test case", async (t) => {
- *   await assertInlineSnapshot(
+ * Deno.test("a snapshot test case", (t) => {
+ *   assertInlineSnapshot(
  *     t,
  *     { foo: "Hello", bar: "World" },
  *     `CREATE`

testing/_assert_inline_snapshot_test.ts

@@ -5,6 +5,7 @@ import { assertEquals } from "@std/assert";
 import {
   assertInlineSnapshot,
   createAssertInlineSnapshot,
+  LINT_SUPPORTED,
 } from "./_assert_inline_snapshot.ts";
 
 const SNAPSHOT_MODULE_URL = toFileUrl(join(
@@ -85,6 +86,8 @@ Deno.test("assertInlineSnapshot()", (t) => {
 });
 
 Deno.test("assertInlineSnapshot() formats", async () => {
+  if (!LINT_SUPPORTED) return;
+
   const tempDir = await Deno.makeTempDir();
   const formatTestFile = join(tempDir, "format_test.ts");
   const noFormatTestFile = join(tempDir, "no_format_test.ts");
@@ -138,6 +141,8 @@ Deno.test("no format", async (t) => {
 });
 
 Deno.test("assertInlineSnapshot() counts lines and columns like V8", async () => {
+  if (!LINT_SUPPORTED) return;
+
   const tempDir = await Deno.makeTempDir();
   const countTestFile = join(tempDir, "count_test.ts");
   try {

testing/snapshot.ts

@@ -38,12 +38,12 @@
  * // example_test.ts
  * import { assertInlineSnapshot } from "@std/testing/snapshot";
  *
- * Deno.test("isInlineSnapshotMatch", async function (t): Promise<void> {
+ * Deno.test("isInlineSnapshotMatch", function (t): void {
  *   const a = {
  *     hello: "world!",
  *     example: 123,
  *   };
- *   await assertInlineSnapshot(
+ *   assertInlineSnapshot(
  *     t,
  *     a,
  *     `{
@@ -179,13 +179,15 @@ import {
   type SnapshotMode,
   type SnapshotOptions,
 } from "./_assert_snapshot.ts";
+import { serialize } from "./_snapshot_utils.ts";
 
 export {
   assertInlineSnapshot,
   assertSnapshot,
   createAssertInlineSnapshot,
   createAssertSnapshot,
   type InlineSnapshotOptions,
+  serialize,
   type SnapshotMode,
   type SnapshotOptions,
 };