feat: set beta version

tests/store/once-projection.ts

@@ -0,0 +1,94 @@
+import { assertEquals, assertObjectMatch } from "@std/assert";
+import { it } from "@std/testing/bdd";
+
+import { makeId } from "../../libraries/nanoid.ts";
+import type { EventStoreFactory } from "../mocks/events.ts";
+import { describe } from "../utilities/describe.ts";
+
+export default describe<EventStoreFactory>("projector.once", (getEventStore) => {
+  it("should handle successfull projection", async () => {
+    const { store, projector } = await getEventStore();
+
+    const stream = makeId();
+    const event = store.event({
+      stream,
+      type: "user:created",
+      data: {
+        name: {
+          given: "John",
+          family: "Doe",
+        },
+        email: "john.doe@fixture.none",
+      },
+      meta: {
+        auditor: "foo",
+      },
+    });
+
+    let emailId: string | Error | undefined;
+
+    projector.once(
+      "user:created",
+      async () => {
+        return { id: "fake-email-id" };
+      },
+      {
+        async onError({ error }) {
+          emailId = error as Error;
+        },
+        async onSuccess({ data }) {
+          emailId = data.id;
+        },
+      },
+    );
+
+    await store.pushEvent(event);
+
+    assertObjectMatch(await store.events.getByStream(stream).then((rows: any) => rows[0]), event);
+    assertEquals(emailId, "fake-email-id");
+  });
+
+  it("should handle failed projection", async () => {
+    const { store, projector } = await getEventStore();
+
+    const stream = makeId();
+    const event = store.event({
+      stream,
+      type: "user:created",
+      data: {
+        name: {
+          given: "John",
+          family: "Doe",
+        },
+        email: "john.doe@fixture.none",
+      },
+      meta: {
+        auditor: "foo",
+      },
+    });
+
+    let emailId: string | undefined;
+
+    projector.once(
+      "user:created",
+      async () => {
+        fakeEmail();
+      },
+      {
+        async onError({ error }) {
+          emailId = (error as Error).message;
+        },
+        async onSuccess() {},
+      },
+    );
+
+    await store.pushEvent(event);
+
+    assertObjectMatch(await store.events.getByStream(stream).then((rows: any) => rows[0]), event);
+    assertEquals(emailId, "Failed to send email!");
+  });
+});
+
+function fakeEmail() {
+  throw new Error("Failed to send email!");
+}