larry babby and threejs for glsl

webGl/my-threejs-test/node_modules/@parcel/graph/test/ContentGraph.test.js

@@ -0,0 +1,42 @@
+// @flow strict-local
+
+import assert from 'assert';
+import ContentGraph from '../src/ContentGraph';
+
+describe('ContentGraph', () => {
+  it('should addNodeByContentKey if no node exists with the content key', () => {
+    let graph = new ContentGraph();
+
+    const node = {};
+
+    const nodeId1 = graph.addNodeByContentKey('contentKey', node);
+
+    assert.deepEqual(graph.getNode(nodeId1), node);
+    assert(graph.hasContentKey('contentKey'));
+    assert.deepEqual(graph.getNodeByContentKey('contentKey'), node);
+  });
+
+  it('should throw if a node with the content key already exists', () => {
+    let graph = new ContentGraph();
+
+    graph.addNodeByContentKey('contentKey', {});
+
+    assert.throws(() => {
+      graph.addNodeByContentKey('contentKey', {});
+    }, /already has content key/);
+  });
+
+  it('should remove the content key from graph when node is removed', () => {
+    let graph = new ContentGraph();
+
+    const node1 = {};
+    const nodeId1 = graph.addNodeByContentKey('contentKey', node1);
+
+    assert.equal(graph.getNode(nodeId1), node1);
+    assert(graph.hasContentKey('contentKey'));
+
+    graph.removeNode(nodeId1);
+
+    assert(!graph.hasContentKey('contentKey'));
+  });
+});