🧪 test: add shape clipboard test module

tests/shape-clipboard.test.mjs

@@ -0,0 +1,71 @@
+import assert from "node:assert/strict";
+import { test } from "node:test";
+import { loadShapeClipboardModule } from "./helpers/load-plugin-modules.mjs";
+import { readDeck, toArrayBuffer } from "./helpers/renderer.mjs";
+
+test("createSlideObjectsClipboard should create a clipboard object with normalized shape indexes", async () => {
+  const { createSlideObjectsClipboard } = await loadShapeClipboardModule();
+
+  const buffer = new ArrayBuffer(8);
+  const slideIndex = 0;
+  const shapeIndexes = [2, 0, 1, 2];
+
+  const clipboard = createSlideObjectsClipboard(buffer, slideIndex, shapeIndexes);
+
+  assert.equal(clipboard.slideIndex, 0);
+  assert.deepEqual(clipboard.shapeIndexes, [0, 1, 2]);
+  assert.equal(clipboard.shapeIndex, 0);
+});
+
+test("createSlideObjectClipboard should create a clipboard object for a single shape", async () => {
+  const { createSlideObjectClipboard } = await loadShapeClipboardModule();
+
+  const buffer = new ArrayBuffer(8);
+  const slideIndex = 1;
+  const shapeIndex = 3;
+
+  const clipboard = createSlideObjectClipboard(buffer, slideIndex, shapeIndex);
+
+  assert.equal(clipboard.slideIndex, 1);
+  assert.deepEqual(clipboard.shapeIndexes, [3]);
+  assert.equal(clipboard.shapeIndex, 3);
+});
+
+test("createSlideObjectsClipboard throws error if shape indexes are empty", async () => {
+  const { createSlideObjectsClipboard } = await loadShapeClipboardModule();
+
+  const buffer = new ArrayBuffer(8);
+  assert.throws(
+    () => createSlideObjectsClipboard(buffer, 0, []),
+    /Select at least one PowerPoint object to copy/
+  );
+  assert.throws(
+    () => createSlideObjectsClipboard(buffer, 0, [-1]),
+    /Select at least one PowerPoint object to copy/
+  );
+});
+
+test("pasteSlideObject pastes a single shape", async () => {
+  const { pasteSlideObject, createSlideObjectClipboard } = await loadShapeClipboardModule();
+
+  const buffer = toArrayBuffer(await readDeck("simple-edit.pptx"));
+  const clipboard = createSlideObjectClipboard(buffer, 0, 0);
+
+  const result = await pasteSlideObject(buffer, clipboard, 0);
+
+  assert.ok(result.buffer instanceof ArrayBuffer);
+  assert.ok(Number.isInteger(result.shapeIndex));
+});
+
+test("pasteSlideObjects pastes multiple shapes", async () => {
+  const { pasteSlideObjects, createSlideObjectsClipboard } = await loadShapeClipboardModule();
+
+  const buffer = toArrayBuffer(await readDeck("features.pptx"));
+  const clipboard = createSlideObjectsClipboard(buffer, 0, [0, 2]);
+
+  const result = await pasteSlideObjects(buffer, clipboard, 0);
+
+  assert.ok(result.buffer instanceof ArrayBuffer);
+  assert.equal(result.shapeIndexes.length, 2);
+  assert.ok(result.shapeIndexes.every(idx => Number.isInteger(idx)));
+});