fix(agent): 画布助手 - 完善不限预算与技能分页上下文卸载

web/test/canvas-grid-split.test.ts

@@ -0,0 +1,32 @@
+import { describe, expect, test } from "bun:test";
+
+import { clampGridSplitSize, isValidGridSplit, layoutGridSplitCells } from "../src/lib/canvas/canvas-grid-split";
+
+describe("canvas-grid-split", () => {
+    test("clamps size into 1..5", () => {
+        expect(clampGridSplitSize(0)).toBe(1);
+        expect(clampGridSplitSize(8)).toBe(5);
+        expect(clampGridSplitSize(2.6)).toBe(3);
+    });
+
+    test("rejects a single cell", () => {
+        expect(isValidGridSplit({ rows: 1, columns: 1 })).toBe(false);
+        expect(isValidGridSplit({ rows: 1, columns: 2 })).toBe(true);
+        expect(isValidGridSplit({ rows: 3, columns: 2 })).toBe(true);
+    });
+
+    test("lays out fitted cells without overlap", () => {
+        const cells = [
+            { row: 0, column: 0, width: 592, height: 432 },
+            { row: 0, column: 1, width: 592, height: 432 },
+            { row: 1, column: 0, width: 592, height: 432 },
+            { row: 1, column: 1, width: 592, height: 432 },
+        ];
+        const positions = layoutGridSplitCells({ x: 100, y: 40 }, cells, 48);
+        expect(positions[1]).toEqual({ x: 100 + 592 + 48, y: 40 });
+        expect(positions[2]).toEqual({ x: 100, y: 40 + 432 + 48 });
+        expect(positions[3]).toEqual({ x: 100 + 592 + 48, y: 40 + 432 + 48 });
+        expect(positions[1]!.x).toBeGreaterThanOrEqual(positions[0]!.x + cells[0]!.width + 48);
+        expect(positions[2]!.y).toBeGreaterThanOrEqual(positions[0]!.y + cells[0]!.height + 48);
+    });
+});