a couple TransformMatrix unit tests

Author: suchipi

packages/2d/src/Models/TransformMatrix.test.ts

@@ -0,0 +1,40 @@
+import TransformMatrix from "./TransformMatrix";
+
+test("TransformMatrix empty constructor", () => {
+  const mat = new TransformMatrix();
+  expect(mat._matrix).toBeInstanceOf(DOMMatrix);
+  // prettier-ignore
+  expect([
+    mat.a, mat.c, mat.e,
+    mat.b, mat.d, mat.f
+  ]).toEqual([
+    1, 0, 0,
+    0, 1, 0,
+  ]);
+});
+
+test("TransformMatrix constructor with args", () => {
+  const mat = new TransformMatrix(2, 3, 4, 5, 6, 7);
+  expect(mat._matrix).toBeInstanceOf(DOMMatrix);
+  // prettier-ignore
+  expect([
+    mat.a, mat.c, mat.e,
+    mat.b, mat.d, mat.f
+  ]).toEqual([
+    2, 4, 6,
+    3, 5, 7,
+  ]);
+});
+
+test("TransformMatrix scale", () => {
+  const mat = new TransformMatrix();
+  const mat2 = mat.scale(2, 3, 0.3, 0.4);
+  // prettier-ignore
+  expect([
+    mat2.a, mat2.c, mat2.e,
+    mat2.b, mat2.d, mat2.f
+  ]).toMatchObject([
+    2, 0, -0.30000001192092896, 
+    0, 3, -0.8000000715255737,
+  ]);
+});

tsconfig.json

@@ -7,11 +7,7 @@
     "./ts-webpack.ts"
   ],
   "include": ["./packages/**/*.ts", "./packages/**/*.tsx"],
-  "exclude": [
-    "./packages/**/*.test.ts",
-    "./packages/scripts/**/*",
-    "./packages/create/template/**/*"
-  ],
+  "exclude": ["./packages/scripts/**/*", "./packages/create/template/**/*"],
 
   "compilerOptions": {
     "lib": ["es2019", "dom"],