#1704 handling of subgraph data

src/diagrams/flowchart/flowDb.spec.js

@@ -0,0 +1,44 @@
+import flowDb from './flowDb';
+
+describe('flow db subgraphs', () => {
+  let subgraphs;
+  beforeEach( ()=>{
+    subgraphs = [
+      {nodes:['a', 'b', 'c', 'e']},
+      {nodes:['f', 'g', 'h']},
+      {nodes:['i', 'j']},
+      {nodes:['k']},
+    ];
+  });
+  describe('exist', () => {
+    it('should return true when the is exists in a subgraph', () => {
+      expect(flowDb.exists(subgraphs, 'a')).toBe(true);
+      expect(flowDb.exists(subgraphs, 'h')).toBe(true);
+      expect(flowDb.exists(subgraphs, 'j')).toBe(true);
+      expect(flowDb.exists(subgraphs, 'k')).toBe(true);
+    });
+    it('should return false when the is exists in a subgraph', () => {
+      expect(flowDb.exists(subgraphs, 'a2')).toBe(false);
+      expect(flowDb.exists(subgraphs, 'l')).toBe(false);
+    });
+  });
+
+    describe('makeUniq', () => {
+      it('should remove ids from sungraph that already exists in another subgraph even if it gets empty', () => {
+        const subgraph = flowDb.makeUniq({nodes:['i', 'j']}, subgraphs);
+
+        expect(subgraph.nodes).toEqual([]);
+      });
+      it('should remove ids from sungraph that already exists in another subgraph', () => {
+        const subgraph = flowDb.makeUniq({nodes:['i', 'j', 'o']}, subgraphs);
+
+        expect(subgraph.nodes).toEqual(['o']);
+      });
+      it('should not remove ids from subgraph if they are unique', () => {
+        const subgraph = flowDb.makeUniq({nodes:['q', 'r', 's']}, subgraphs);
+
+        expect(subgraph.nodes).toEqual(['q', 'r', 's']);
+      });
+    });
+});
+