diff --git a/.pnp.cjs b/.pnp.cjs
index 56cf9473..568a5d25 100644
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -1770,6 +1770,7 @@ const RAW_RUNTIME_STATE =
           ["@jest/globals", "npm:29.7.0"],\
           ["@mittwald/react-use-promise", "virtual:e06e30328889a833dfcbfbc5c33f5e1173628bc1414934ce897e2f1b90b91087fa3f8b59a8a3ced3a53b1f7df474adc821437919c179e8897ac6cecf6bf31f00#npm:2.3.12"],\
           ["@types/jest", "npm:29.5.12"],\
+          ["@types/jest__globals", null],\
           ["@types/mittwald__react-use-promise", null],\
           ["@types/parse-path", "npm:7.0.3"],\
           ["@typescript-eslint/eslint-plugin", "virtual:36a01d8083315b8a6e8362097258ea8bc0f9dfb672cb210742e054760850c673a1038f542a6b7156397b5275ace8ee0482231cac5e8898044fa1a1c29f78ee5b#npm:7.0.2"],\
@@ -1795,6 +1796,7 @@ const RAW_RUNTIME_STATE =
         ],\
         "packagePeers": [\
           "@mittwald/react-use-promise",\
+          "@types/jest__globals",\
           "@types/mittwald__react-use-promise"\
         ],\
         "linkType": "SOFT"\
@@ -1806,6 +1808,7 @@ const RAW_RUNTIME_STATE =
           ["@jest/globals", "npm:29.7.0"],\
           ["@mittwald/react-use-promise", "virtual:c868363b9225da9941a57efe275cc186f56bbc5675507a35ee9dd42e682f6dada28f6419bfde0c8606475daefedaf411ac54fad43a935d5d29d658bdc4a86153#npm:2.3.12"],\
           ["@types/jest", "npm:29.5.12"],\
+          ["@types/jest__globals", null],\
           ["@types/mittwald__react-use-promise", null],\
           ["@types/parse-path", "npm:7.0.3"],\
           ["@typescript-eslint/eslint-plugin", "virtual:36a01d8083315b8a6e8362097258ea8bc0f9dfb672cb210742e054760850c673a1038f542a6b7156397b5275ace8ee0482231cac5e8898044fa1a1c29f78ee5b#npm:7.0.2"],\
@@ -1831,6 +1834,7 @@ const RAW_RUNTIME_STATE =
         ],\
         "packagePeers": [\
           "@mittwald/react-use-promise",\
+          "@types/jest__globals",\
           "@types/mittwald__react-use-promise"\
         ],\
         "linkType": "SOFT"\
diff --git a/packages/commons/package.json b/packages/commons/package.json
index cc0c4a40..859e7dcc 100644
--- a/packages/commons/package.json
+++ b/packages/commons/package.json
@@ -20,6 +20,10 @@
       "types": "./dist/types/index.d.ts",
       "default": "./dist/esm/index.js"
     },
+    "./testing": {
+      "types": "./dist/testing/index.d.ts",
+      "default": "./dist/testing/index.js"
+    },
     "./react": {
       "types": "./dist/types/react/index.d.ts",
       "default": "./dist/esm/react/index.js"
@@ -67,6 +71,9 @@
     "@mittwald/react-use-promise": "^2.1.0"
   },
   "peerDependenciesMeta": {
+    "@jest/globals": {
+      "optional": true
+    },
     "@mittwald/react-use-promise": {
       "optional": true
     }
diff --git a/packages/commons/src/testing/expectStatus.ts b/packages/commons/src/testing/expectStatus.ts
new file mode 100644
index 00000000..5bbd8937
--- /dev/null
+++ b/packages/commons/src/testing/expectStatus.ts
@@ -0,0 +1,13 @@
+import { expect } from "@jest/globals";
+import assertStatus from "../types/assertStatus.js";
+import { Response } from "../types/Response.js";
+
+export function expectStatus<T extends Response, S extends T["status"]>(
+  response: T,
+  status: S,
+): asserts response is T & { status: S } {
+  expect(response.status).toBe(status);
+  assertStatus(response, status);
+}
+
+export default expectStatus;
diff --git a/packages/commons/src/testing/index.ts b/packages/commons/src/testing/index.ts
new file mode 100644
index 00000000..5081dc3a
--- /dev/null
+++ b/packages/commons/src/testing/index.ts
@@ -0,0 +1 @@
+export * from "./expectStatus.js";
diff --git a/yarn.lock b/yarn.lock
index a928addd..952afcf2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1154,6 +1154,8 @@ __metadata:
   peerDependencies:
     "@mittwald/react-use-promise": ^2.1.0
   peerDependenciesMeta:
+    "@jest/globals":
+      optional: true
     "@mittwald/react-use-promise":
       optional: true
   languageName: unknown