add tests for etas resolver

test/resolvers/ShuttleResolverTests.test.ts

@@ -22,6 +22,32 @@ describe("ShuttleResolvers", () => {
     repository = new UnoptimizedInMemoryRepository();
   });
 
+  let mockSystem: ISystem;
+  let mockShuttle: IShuttle;
+
+  beforeEach(async () => {
+    const mockSystems = generateMockSystems();
+    mockSystem = mockSystems[0];
+    mockSystem.id = "1";
+    await repository.addOrUpdateSystem(mockSystem);
+
+    const mockShuttles = generateMockShuttles();
+    mockShuttle = mockShuttles[0];
+    mockShuttle.systemId = mockSystem.id;
+    mockShuttle.id = "1";
+    await repository.addOrUpdateShuttle(mockShuttle);
+  });
+
+
+  async function addMockEtas(shuttleId: string) {
+    const etas = generateMockEtas();
+    await Promise.all(etas.map(async (eta) => {
+      eta.shuttleId = shuttleId;
+      await repository.addOrUpdateEta(eta);
+    }));
+    return etas;
+  }
+
   describe("eta", () => {
     const query = `
     query GetShuttleETAs($systemId: ID!, $shuttleId: ID!, $stopId: ID!)
@@ -35,29 +61,8 @@ describe("ShuttleResolvers", () => {
       }
     }
     `
-    let mockSystem: ISystem;
-    let mockShuttle: IShuttle;
-
-    beforeEach(async () => {
-      // Arrange
-      const mockSystems = generateMockSystems();
-      mockSystem = mockSystems[0];
-      mockSystem.id = "1";
-      await repository.addOrUpdateSystem(mockSystem);
-
-      const mockShuttles = generateMockShuttles();
-      mockShuttle = mockShuttles[0];
-      mockShuttle.systemId = mockSystem.id;
-      mockShuttle.id = "1";
-      await repository.addOrUpdateShuttle(mockShuttle);
-    });
-
     it("returns ETA data for stop ID if exists", async () => {
-      const etas = generateMockEtas();
-      await Promise.all(etas.map(async (eta) => {
-        eta.shuttleId = mockShuttle.id;
-        await repository.addOrUpdateEta(eta);
-      }));
+      const etas = await addMockEtas(mockShuttle.id);
 
       const mockEta = etas[1];
 
@@ -101,4 +106,58 @@ describe("ShuttleResolvers", () => {
       expect((response.body.singleResult.data as any).system.shuttle.eta).toBeNull();
     });
   });
+
+  describe("etas", () => {
+    const query = `
+    query GetShuttleETAs($systemId: ID!, $shuttleId: ID!)
+    {
+      system(id: $systemId) {
+        shuttle(id: $shuttleId) {
+          etas {
+            secondsRemaining
+          }
+        }
+      }
+    }
+    `
+
+    it("returns associated ETAs if they exist for the shuttle", async () => {
+      const etas = await addMockEtas(mockShuttle.id);
+
+      const response = await testServer.executeOperation({
+        query,
+        variables: {
+          systemId: mockSystem.id,
+          shuttleId: mockShuttle.id,
+        },
+      }, {
+        contextValue: {
+          repository,
+        }
+      });
+
+      assert(response.body.kind === "single");
+      expect(response.body.singleResult.errors).toBeUndefined();
+      expect((response.body.singleResult.data as any).system.shuttle.etas).toHaveLength(etas.length);
+    });
+
+    it("returns empty array if no ETAs exist", async () => {
+      const response = await testServer.executeOperation({
+        query,
+        variables: {
+          systemId: mockSystem.id,
+          shuttleId: mockShuttle.id,
+        },
+      }, {
+        contextValue: {
+          repository,
+        }
+      });
+
+      assert(response.body.kind === "single");
+      expect(response.body.singleResult.errors).toBeUndefined();
+      expect((response.body.singleResult.data as any).system.shuttle.etas).toHaveLength(0);
+
+    });
+  });
 });