test: add step definitions for reset-clone-undo-redo

tests/cucumber/support/step_definitions/Then material with following data does not exist in state.js

@@ -0,0 +1,18 @@
+import path from "path";
+
+import {parseTable} from "../utils/table";
+import {readFileSync} from "../utils/file";
+import {retry, shallowDeepAlmostEqual} from "../utils";
+
+export default function () {
+    this.Then(/^material with following data does not exist in state$/, function (table) {
+        const config = parseTable(table, this)[0];
+        const material = JSON.parse(readFileSync(path.resolve(__dirname, "../../fixtures", config.path)));
+        retry(() => {
+            const materials = exabrowser.execute(() => {
+                return window.MDContainer.store.getState().present.materials.map(m => m.toJSON());
+            }).value;
+            shallowDeepAlmostEqual(undefined, materials[config.index - 1]);
+        }, {retries: 5});
+    });
+};

tests/cucumber/support/step_definitions/When I select # option from the Edit menu.js

@@ -0,0 +1,10 @@
+import {materialDesignerPage} from "../widgets/material_designer_page";
+
+export default function () {
+    this.Then(/^I select "([^"]*)" option from the Edit menu$/, function (actionString) {
+        const map = {"undo": 1, "redo": 2, "reset": 3};
+        const index = map[actionString];
+        if (!index) throw new Error("I click # action from the Edit menu - index is undefined");
+        materialDesignerPage.designerWidget.clickUndoRedoReset(index);
+    });
+};

tests/cucumber/support/widgets/material_designer_widget.js

@@ -45,6 +45,8 @@ export class MaterialDesignerWidget extends Widget {
 
     cloneCurrentMaterial() {this.headerMenu.selectMenuItemByNameAndItemNumber("Edit", 4)};
 
+    clickUndoRedoReset(index = 1) {this.headerMenu.selectMenuItemByNameAndItemNumber("Edit", index)};
+
     openSurfaceDialog() {this.headerMenu.selectMenuItemByNameAndItemNumber("Advanced", 4)}
 
     createSurface(config) {