1 files changed, 50 insertions, 0 deletions
diff --git a/src/features/workspaces/logic/create.test.ts b/src/features/workspaces/logic/create.test.ts
new file mode 100644
index 0000000..278bcd6
--- /dev/null
+++ b/src/features/workspaces/logic/create.test.ts
@@ -0,0 +1,50 @@
+import type { Workspace } from "@dispatch/wire";
+import { describe, expect, it } from "vitest";
+import {
+  archivedCreateMessage,
+  checkFailedCreateMessage,
+  gateCreate,
+  type WorkspaceLookup,
+} from "./create";
+
+function workspace(overrides: Partial<Workspace> = {}): Workspace {
+  return {
+    id: "old",
+    title: "Old",
+    defaultCwd: null,
+    defaultComputerId: null,
+    starred: false,
+    archived: false,
+    createdAt: 1,
+    lastActivityAt: 2,
+    ...overrides,
+  };
+}
+
+describe("gateCreate", () => {
+  it("blocks a slug whose workspace is archived, with the can't-create message", () => {
+    const lookup: WorkspaceLookup = { kind: "found", workspace: workspace({ archived: true }) };
+    const gate = gateCreate("old", lookup);
+    expect(gate).toEqual({ ok: false, error: archivedCreateMessage("old") });
+    expect(gate.ok === false && gate.error).toContain(
+      'A workspace named "old" already exists and is archived — you can\'t create it.',
+    );
+  });
+
+  it("proceeds for an existing ACTIVE workspace (ensure is idempotent)", () => {
+    const lookup: WorkspaceLookup = { kind: "found", workspace: workspace({ archived: false }) };
+    expect(gateCreate("old", lookup)).toEqual({ ok: true });
+  });
+
+  it("proceeds for a missing slug", () => {
+    expect(gateCreate("fresh", { kind: "missing" })).toEqual({ ok: true });
+  });
+
+  it("blocks when the existence probe failed (never guesses)", () => {
+    const gate = gateCreate("maybe", { kind: "failed", error: "db down" });
+    expect(gate).toEqual({ ok: false, error: checkFailedCreateMessage("maybe", "db down") });
+    expect(gate.ok === false && gate.error).toContain(
+      'Couldn\'t check whether a workspace named "maybe"',
+    );
+  });
+});