test suite for js/protoblocks.js (#4382)

* creating test suite for js/protoblocks.js

* Exporting modules for test

Author: omsuneri

js/__tests__/protoblocks.test.js

@@ -0,0 +1,90 @@
+const ProtoBlock = require("../protoblocks");
+global.createjs = {
+  Container: jest.fn(() => ({
+    addChild: jest.fn(),
+    getBounds: jest.fn(() => ({ width: 50 })),
+  })),
+  Text: jest.fn((text, font, color) => ({ text, font, color })),
+};
+
+global.SVG = jest.fn(() => ({
+  setScale: jest.fn(),
+  setTab: jest.fn(),
+  setSlot: jest.fn(),
+  setFontSize: jest.fn(),
+  setExpand: jest.fn(),
+  basicBlock: jest.fn(() => "<svg></svg>"),
+  docks: [[0, 0]],
+  getWidth: jest.fn(() => 100),
+  getHeight: jest.fn(() => 50),
+}));
+
+global.DEFAULTBLOCKSCALE = 1.0;
+global.STANDARDBLOCKHEIGHT = 20;
+
+describe("ProtoBlock", () => {
+  let block;
+  beforeEach(() => {
+    block = new ProtoBlock("TestBlock");
+  });
+
+  test("should initialize with default properties", () => {
+    expect(block.name).toBe("TestBlock");
+    expect(block.palette).toBeNull();
+    expect(block.style).toBeNull();
+    expect(block.generator).toBeNull();
+    expect(block.expandable).toBe(false);
+    expect(block.args).toBe(0);
+    expect(block.defaults).toEqual([]);
+  });
+
+  test("adjustWidthToLabel should set textWidth and extraWidth", () => {
+    block.staticLabels.push("Example Label");
+    block.adjustWidthToLabel();
+    expect(block.textWidth).toBe(50);
+    expect(block.extraWidth).toBeGreaterThan(0);
+  });
+
+  test("zeroArgBlock should set correct properties", () => {
+    block.zeroArgBlock();
+    expect(block.args).toBe(0);
+    expect(block.dockTypes).toEqual(["out", "in"]);
+    expect(typeof block.generator).toBe("function");
+  });
+
+  test("zeroArgBlockGenerator should return SVG details", () => {
+    block.zeroArgBlock();
+    const result = block.generator();
+    expect(result).toEqual(["<svg></svg>", [[0, 0]], 100, 50, 50]);
+  });
+
+  test("oneArgBlock should set correct properties", () => {
+    block.oneArgBlock();
+    expect(block.args).toBe(1);
+    expect(block.dockTypes).toEqual(["out", "numberin", "in"]);
+  });
+
+  test("twoArgBlock should configure expandable block", () => {
+    block.twoArgBlock();
+    expect(block.expandable).toBe(true);
+    expect(block.args).toBe(2);
+    expect(block.dockTypes).toContain("numberin");
+  });
+
+  test("hiddenBlockFlow should set generator correctly", () => {
+    block.hiddenBlockFlow();
+    expect(block.size).toBe(0);
+    expect(block.dockTypes).toContain("in");
+  });
+
+  test("booleanZeroArgBlock should configure boolean output", () => {
+    block.booleanZeroArgBlock();
+    expect(block.dockTypes).toContain("booleanout");
+  });
+
+  test("parameterBlock should set up a value output block", () => {
+    block.parameterBlock();
+    expect(block.dockTypes).toContain("numberout");
+    expect(block.parameter).toBe(true);
+  });
+});

js/protoblocks.js

@@ -2329,3 +2329,7 @@ class StackClampBlock extends BaseBlock {
         });
     }
 }
+
+if (typeof module !== "undefined" && module.exports) {
+    module.exports = ProtoBlock;
+}