test: add test for content etag

Author: janniks

tests/cache.test.ts

@@ -244,4 +244,45 @@ describe('ETag cache', () => {
     });
     expect(cacheBusted.statusCode).toBe(200);
   });
+
+  test('inscription content cache control', async () => {
+    const block1 = new TestChainhookPayloadBuilder()
+      .apply()
+      .block({ height: 778575, hash: randomHash() })
+      .transaction({ hash: '0x9f4a9b73b0713c5da01c0a47f97c6c001af9028d6bdd9e264dfacbc4e6790201' })
+      .inscriptionRevealed({
+        content_bytes: '0x48656C6C6F',
+        content_type: 'text/plain',
+        content_length: 5,
+        inscription_number: 7,
+        inscription_fee: 705,
+        inscription_id: '9f4a9b73b0713c5da01c0a47f97c6c001af9028d6bdd9e264dfacbc4e6790201i0',
+        inscription_output_value: 10000,
+        inscriber_address: 'bc1pscktlmn99gyzlvymvrezh6vwd0l4kg06tg5rvssw0czg8873gz5sdkteqj',
+        ordinal_number: 257418248345364,
+        ordinal_block_height: 650000,
+        ordinal_offset: 0,
+        satpoint_post_inscription:
+          '9f4a9b73b0713c5da01c0a47f97c6c001af9028d6bdd9e264dfacbc4e6790201:0:0',
+      })
+      .build();
+    await db.updateInscriptions(block1);
+
+    // ETag response
+    const response = await fastify.inject({
+      method: 'GET',
+      url: '/ordinals/v1/inscriptions/9f4a9b73b0713c5da01c0a47f97c6c001af9028d6bdd9e264dfacbc4e6790201i0/content',
+    });
+    expect(response.statusCode).toBe(200);
+    expect(response.headers.etag).not.toBeUndefined();
+    const etag = response.headers.etag;
+
+    // Cached
+    const cached = await fastify.inject({
+      method: 'GET',
+      url: '/ordinals/v1/inscriptions/9f4a9b73b0713c5da01c0a47f97c6c001af9028d6bdd9e264dfacbc4e6790201i0/content',
+      headers: { 'if-none-match': etag },
+    });
+    expect(cached.statusCode).toBe(304);
+  });
 });