diff --git a/web/src/utils/is-stage-running.test.ts b/web/src/utils/is-stage-running.test.ts
new file mode 100644
index 0000000000..e3969f9b9f
--- /dev/null
+++ b/web/src/utils/is-stage-running.test.ts
@@ -0,0 +1,16 @@
+import { StageStatus } from "~~/model/deployment_pb";
+import { isStageRunning } from "./is-stage-running";
+
+describe("isStageRunning", () => {
+  it.each([
+    [StageStatus.STAGE_NOT_STARTED_YET, true],
+    [StageStatus.STAGE_RUNNING, true],
+    [StageStatus.STAGE_SUCCESS, false],
+    [StageStatus.STAGE_FAILURE, false],
+    [StageStatus.STAGE_CANCELLED, false],
+    [StageStatus.STAGE_SKIPPED, false],
+    [StageStatus.STAGE_EXITED, false],
+  ])("given status %p, returns %p", (status, expected) => {
+    expect(isStageRunning(status)).toBe(expected);
+  });
+});