public commit

app/__test__/data/specs/relations/EntityRelation.spec.ts

@@ -0,0 +1,78 @@
+import { describe, expect, it, test } from "bun:test";
+import { Entity, type EntityManager } from "../../../../src/data";
+import {
+   type BaseRelationConfig,
+   EntityRelation,
+   EntityRelationAnchor,
+   RelationTypes
+} from "../../../../src/data/relations";
+
+class TestEntityRelation extends EntityRelation {
+   constructor(config?: BaseRelationConfig) {
+      super(
+         new EntityRelationAnchor(new Entity("source"), "source"),
+         new EntityRelationAnchor(new Entity("target"), "target"),
+         config
+      );
+   }
+   initialize(em: EntityManager<any>) {}
+   type() {
+      return RelationTypes.ManyToOne; /* doesn't matter */
+   }
+   setDirections(directions: ("source" | "target")[]) {
+      this.directions = directions;
+      return this;
+   }
+
+   buildWith(a: any, b: any, c: any): any {
+      return;
+   }
+
+   buildJoin(a: any, b: any): any {
+      return;
+   }
+}
+
+describe("[data] EntityRelation", async () => {
+   test("other", async () => {
+      const relation = new TestEntityRelation();
+      expect(relation.other("source").entity.name).toBe("target");
+      expect(relation.other("target").entity.name).toBe("source");
+   });
+
+   it("visibleFrom", async () => {
+      const relation = new TestEntityRelation();
+      // by default, both sides are visible
+      expect(relation.visibleFrom("source")).toBe(true);
+      expect(relation.visibleFrom("target")).toBe(true);
+
+      // make source invisible
+      relation.setDirections(["target"]);
+      expect(relation.visibleFrom("source")).toBe(false);
+      expect(relation.visibleFrom("target")).toBe(true);
+
+      // make target invisible
+      relation.setDirections(["source"]);
+      expect(relation.visibleFrom("source")).toBe(true);
+      expect(relation.visibleFrom("target")).toBe(false);
+   });
+
+   it("hydrate", async () => {
+      // @todo: implement
+   });
+
+   it("isListableFor", async () => {
+      // by default, the relation is listable from target side
+      const relation = new TestEntityRelation();
+      expect(relation.isListableFor(relation.target.entity)).toBe(true);
+      expect(relation.isListableFor(relation.source.entity)).toBe(false);
+   });
+
+   it("required", async () => {
+      const relation1 = new TestEntityRelation();
+      expect(relation1.config.required).toBe(false);
+
+      const relation2 = new TestEntityRelation({ required: true });
+      expect(relation2.config.required).toBe(true);
+   });
+});