[Init] Initial commit - NetMesh terminal manager

components/terminalLayer/workspaceSplitResize.test.ts

@@ -0,0 +1,54 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import {
+  computeResizeBoundary,
+  computeSplitSizesFromDelta,
+  patchWorkspaceSplitSizes,
+  type WorkspaceResizeSession,
+} from './workspaceSplitResize';
+import type { Workspace } from '../../types';
+
+const session: WorkspaceResizeSession = {
+  workspaceId: 'ws-1',
+  splitId: 'split-1',
+  index: 0,
+  direction: 'horizontal',
+  startSizes: [0.5, 0.5],
+  startArea: { x: 0, y: 0, w: 800, h: 600 },
+  startClient: { x: 0, y: 300 },
+};
+
+test('computeSplitSizesFromDelta keeps normalized sizes', () => {
+  const sizes = computeSplitSizesFromDelta(session, 60);
+  assert.equal(sizes.length, 2);
+  assert.ok(Math.abs(sizes[0] + sizes[1] - 1) < 0.0001);
+  assert.ok(sizes[0] > 0.5);
+});
+
+test('computeResizeBoundary moves down when dragging split divider downward', () => {
+  const base = computeResizeBoundary(session, 0);
+  const moved = computeResizeBoundary(session, 80);
+  assert.ok(base != null && moved != null);
+  assert.ok(moved > base);
+});
+
+test('patchWorkspaceSplitSizes updates only the targeted split node', () => {
+  const workspace: Workspace = {
+    id: 'ws-1',
+    title: 'ws-1',
+    root: {
+      id: 'split-1',
+      type: 'split',
+      direction: 'horizontal',
+      sizes: [0.5, 0.5],
+      children: [
+        { id: 'pane-a', type: 'pane', sessionId: 'a' },
+        { id: 'pane-b', type: 'pane', sessionId: 'b' },
+      ],
+    },
+  };
+  const next = patchWorkspaceSplitSizes(workspace, 'split-1', [0.7, 0.3]);
+  assert.notEqual(next, workspace);
+  assert.deepEqual(next.root.type === 'split' ? next.root.sizes : null, [0.7, 0.3]);
+});