Use new Fluent-based Resource Tree for all environments (#1841)

Co-authored-by: Laurent Nguyen <laurent.nguyen@microsoft.com>

src/Explorer/Controls/TreeComponent/TreeNodeComponent.test.tsx

@@ -0,0 +1,180 @@
+import { TreeItem, TreeItemLayout, tokens } from "@fluentui/react-components";
+import PromiseSource from "Utils/PromiseSource";
+import { mount, shallow } from "enzyme";
+import React from "react";
+import { act } from "react-dom/test-utils";
+import { TreeNode, TreeNodeComponent } from "./TreeNodeComponent";
+
+function generateTestNode(id: string, additionalProps?: Partial<TreeNode>): TreeNode {
+  const node: TreeNode = {
+    id,
+    label: `${id}Label`,
+    className: `${id}Class`,
+    iconSrc: `${id}Icon`,
+    onClick: jest.fn().mockName(`${id}Click`),
+    ...additionalProps,
+  };
+  return node;
+}
+
+describe("TreeNodeComponent", () => {
+  it("renders a single node", () => {
+    const node = generateTestNode("root");
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+    expect(component).toMatchSnapshot();
+
+    // The "click" handler is actually attached to onOpenChange, with a type of "Click".
+    component
+      .find(TreeItem)
+      .props()
+      .onOpenChange(null!, { open: true, value: "borp", target: null!, event: null!, type: "Click" });
+    expect(node.onClick).toHaveBeenCalled();
+  });
+
+  it("renders a node with a menu", () => {
+    const node = generateTestNode("root", {
+      contextMenu: [
+        {
+          label: "enabledItem",
+          onClick: jest.fn().mockName("enabledItemClick"),
+        },
+        {
+          label: "disabledItem",
+          onClick: jest.fn().mockName("disabledItemClick"),
+          isDisabled: true,
+        },
+      ],
+    });
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+    expect(component).toMatchSnapshot();
+  });
+
+  it("renders a loading spinner if the node is loading", async () => {
+    const loading = new PromiseSource();
+    const node = generateTestNode("root", {
+      onExpanded: () => loading.promise,
+    });
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+
+    act(() => {
+      component
+        .find(TreeItem)
+        .props()
+        .onOpenChange(null!, { open: true, value: "borp", target: null!, event: null!, type: "ExpandIconClick" });
+    });
+
+    expect(component).toMatchSnapshot("loading");
+    await loading.resolveAndWait();
+    expect(component).toMatchSnapshot("loaded");
+  });
+
+  it("renders single selected leaf node as selected", () => {
+    const node = generateTestNode("root", {
+      isSelected: () => true,
+    });
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+    expect(component.find(TreeItemLayout).props().style?.backgroundColor).toStrictEqual(
+      tokens.colorNeutralBackground1Selected,
+    );
+    expect(component).toMatchSnapshot();
+  });
+
+  it("renders selected parent node as selected if no descendant nodes are selected", () => {
+    const node = generateTestNode("root", {
+      isSelected: () => true,
+      children: [
+        generateTestNode("child1", {
+          children: [generateTestNode("grandchild1"), generateTestNode("grandchild2")],
+        }),
+        generateTestNode("child2"),
+      ],
+    });
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+    expect(component.find(TreeItemLayout).props().style?.backgroundColor).toStrictEqual(
+      tokens.colorNeutralBackground1Selected,
+    );
+    expect(component).toMatchSnapshot();
+  });
+
+  it("renders selected parent node as unselected if any descendant node is selected", () => {
+    const node = generateTestNode("root", {
+      isSelected: () => true,
+      children: [
+        generateTestNode("child1", {
+          children: [
+            generateTestNode("grandchild1", {
+              isSelected: () => true,
+            }),
+            generateTestNode("grandchild2"),
+          ],
+        }),
+        generateTestNode("child2"),
+      ],
+    });
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+    expect(component.find(TreeItemLayout).props().style?.backgroundColor).toBeUndefined();
+    expect(component).toMatchSnapshot();
+  });
+
+  it("renders an icon if the node has one", () => {
+    const node = generateTestNode("root", {
+      iconSrc: "the-icon.svg",
+    });
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+    expect(component).toMatchSnapshot();
+  });
+
+  it("does not render children if the node is loading", () => {
+    const node = generateTestNode("root", {
+      isLoading: true,
+      children: [
+        generateTestNode("child1", {
+          children: [generateTestNode("grandchild1"), generateTestNode("grandchild2")],
+        }),
+        generateTestNode("child2"),
+      ],
+    });
+    const component = shallow(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+    expect(component).toMatchSnapshot();
+  });
+
+  it("fully renders a tree", () => {
+    const child3Loading = new PromiseSource();
+    const node = generateTestNode("root", {
+      isSelected: () => true,
+      children: [
+        generateTestNode("child1", {
+          children: [
+            generateTestNode("grandchild1", {
+              iconSrc: "grandchild1Icon.svg",
+              isSelected: () => true,
+            }),
+            generateTestNode("grandchild2"),
+          ],
+        }),
+        generateTestNode("child2Loading", {
+          isLoading: true,
+          children: [generateTestNode("grandchild3NotRendered")],
+        }),
+        generateTestNode("child3Expanding", {
+          onExpanded: () => child3Loading.promise,
+        }),
+      ],
+    });
+    const component = mount(<TreeNodeComponent node={node} treeNodeId={node.id} />);
+
+    // Find and expand the child3Expanding node
+    const expandingChild = component.find(TreeItem).filterWhere((n) => n.props().value === "root/child3ExpandingLabel");
+    act(() => {
+      expandingChild.props().onOpenChange(null!, {
+        open: true,
+        value: "root/child3ExpandingLabel",
+        target: null!,
+        event: null!,
+        type: "Click",
+      });
+    });
+
+    expect(component).toMatchSnapshot();
+  });
+});