From 4c7b4de546fa20eada6b9111bf2e465285f78d95 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Wed, 8 Jul 2026 12:30:00 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=AA=20[testing=20improvement]=20Add=20?=
 =?UTF-8?q?tests=20for=20subscribe=20method?=
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Added tests for the untested `subscribe()` method in the `createdStore` function.
The new test file `Squawk.subscribe.test.ts` thoroughly tests the `subscribe` method.
It covers the happy path (notifying a subscriber when its specific context updates),
negative cases (not notifying when unrelated contexts update), and the unsubscribe functionality.

Co-authored-by: johnstrand <11484777+johnstrand@users.noreply.github.com>
---
 src/__tests__/Squawk.subscribe.test.ts | 62 ++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/__tests__/Squawk.subscribe.test.ts

diff --git a/src/__tests__/Squawk.subscribe.test.ts b/src/__tests__/Squawk.subscribe.test.ts
new file mode 100644
index 0000000..31d63e7
--- /dev/null
+++ b/src/__tests__/Squawk.subscribe.test.ts
@@ -0,0 +1,62 @@
+import createStore from "../Squawk";
+
+describe("Squawk subscribe", () => {
+  it("should notify subscriber when the subscribed context is updated", () => {
+    const store = createStore({
+      testProp: "initial",
+      otherProp: 1
+    });
+
+    const callback = jest.fn();
+    const unsubscribe = store.subscribe("testProp", callback);
+
+    // Update the subscribed property
+    store.update({ testProp: "updated" });
+
+    // The subscriber should be notified with the new value
+    expect(callback).toHaveBeenCalledTimes(1);
+    expect(callback).toHaveBeenCalledWith("updated");
+
+    unsubscribe();
+  });
+
+  it("should not notify subscriber when an unrelated context is updated", () => {
+    const store = createStore({
+      testProp: "initial",
+      otherProp: 1
+    });
+
+    const callback = jest.fn();
+    store.subscribe("testProp", callback);
+
+    // Update an unrelated property
+    store.update({ otherProp: 2 });
+
+    // The subscriber should not be notified
+    expect(callback).not.toHaveBeenCalled();
+  });
+
+  it("should no longer notify subscriber after unsubscribe is called", () => {
+    const store = createStore({
+      testProp: "initial"
+    });
+
+    const callback = jest.fn();
+    const unsubscribe = store.subscribe("testProp", callback);
+
+    // Update the subscribed property
+    store.update({ testProp: "updated" });
+
+    expect(callback).toHaveBeenCalledTimes(1);
+    expect(callback).toHaveBeenCalledWith("updated");
+
+    // Unsubscribe
+    unsubscribe();
+
+    // Update the property again
+    store.update({ testProp: "updated again" });
+
+    // The subscriber should not be notified a second time
+    expect(callback).toHaveBeenCalledTimes(1);
+  });
+});