chore: import upstream snapshot with attribution

2026-07-13 12:25:07 +08:00
commit a26e856398
1681 changed files with 296950 additions and 0 deletions
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+// ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
+// ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
+// ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
+// ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
+// ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
+// ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
+// ┃ Copyright (c) 2017, the Perspective Authors.                              ┃
+// ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
+// ┃ This file is part of the Perspective library, distributed under the terms ┃
+// ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
+// ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
+
+import { test, expect } from "@perspective-dev/test";
+import perspective from "./perspective_client";
+
+function it_old_behavior(name, capture) {
+    test(name, async function () {
+        let done;
+        let result = new Promise((x) => {
+            done = x;
+        });
+
+        await capture(done);
+        await result;
+    });
+}
+
+function mock_fn() {
+    let count = 0;
+    let fun = () => {
+        count += 1;
+    };
+    fun.count = () => count;
+    return fun;
+}
+
+((perspective) => {
+    test.describe("Delete", function () {
+        test("calls all delete callbacks registered on table", async function () {
+            const table = await perspective.table([{ x: 1 }]);
+            const cb1 = mock_fn();
+            const cb2 = mock_fn();
+            table.on_delete(cb1);
+            table.on_delete(cb2);
+            await table.delete();
+            expect(cb1.count()).toEqual(1);
+            expect(cb2.count()).toEqual(1);
+        });
+
+        test("remove_delete unregisters table delete callbacks", async function () {
+            const table = await perspective.table([{ x: 1 }]);
+            const cb1 = mock_fn();
+            const cb2 = mock_fn();
+            const sub1 = await table.on_delete(cb1);
+            table.on_delete(cb2);
+            await table.remove_delete(sub1);
+            await table.delete();
+            expect(cb1.count()).toEqual(0);
+            expect(cb2.count()).toEqual(1);
+        });
+
+        test("calls all delete callbacks registered on view", async function () {
+            const table = await perspective.table([{ x: 1 }]);
+            const view = await table.view();
+            const cb1 = mock_fn();
+            const cb2 = mock_fn();
+            view.on_delete(cb1);
+            view.on_delete(cb2);
+            await view.delete();
+            expect(cb1.count()).toEqual(1);
+            expect(cb2.count()).toEqual(1);
+            await table.delete();
+        });
+
+        test("remove_delete unregisters view delete callbacks", async function () {
+            const table = await perspective.table([{ x: 1 }]);
+            const view = await table.view();
+            const cb1 = mock_fn();
+            const cb2 = mock_fn();
+            const sub1 = await view.on_delete(cb1);
+            view.on_delete(cb2);
+            view.remove_delete(sub1);
+            await view.delete();
+            expect(cb1.count()).toEqual(0);
+            expect(cb2.count()).toEqual(1);
+            await table.delete();
+        });
+
+        it_old_behavior(
+            "properly removes a failed delete callback on a table",
+            async function (done) {
+                const table = await perspective.table([{ x: 1 }]);
+
+                // when a callback throws, it should delete that callback
+                table.on_delete(() => {
+                    throw new Error("something went wrong!");
+                });
+
+                table.delete();
+                done();
+            },
+        );
+
+        it_old_behavior(
+            "properly removes a failed delete callback on a view",
+            async function (done) {
+                const table = await perspective.table([{ x: 1 }]);
+                const view = await table.view();
+
+                // when a callback throws, it should delete that callback
+                view.on_delete(() => {
+                    throw new Error("something went wrong!");
+                });
+
+                view.delete();
+                table.delete();
+                done();
+            },
+        );
+    });
+})(perspective);