Mocking interfaces (+adding new method to canvas to make it more JS-like)

common/test/mock/root.mjs

@@ -0,0 +1,61 @@
+/**
+ *  LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
+ *  Copyright (C) 2021-2024  Ad5001
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Mock for root element with width and height property.
+ * setWidth, setHeight, getWidth, and getHeight methods can be spied on to check
+ * when the accessor is called.
+ */
+export class MockRootElement {
+    #width = 0
+    #height = 0
+
+    constructor() {}
+
+    setWidth(width) {
+        this.#width = width;
+    }
+
+    getWidth() {
+        return this.#width
+    }
+
+    setHeight(height) {
+        this.#height = height;
+    }
+
+    getHeight() {
+        return this.#height
+    }
+
+    get width() {
+        return this.getWidth()
+    }
+
+    set width(value) {
+        this.setWidth(value)
+    }
+
+    get height() {
+        return this.getHeight()
+    }
+
+    set height(value) {
+        this.setHeight(value)
+    }
+}