Feature/customer service (#8)

Adds CustomerService

packages/medusa/src/models/__mocks__/customer.js

@@ -0,0 +1,37 @@
+import { IdMap } from "medusa-test-utils"
+
+export const customers = {
+  testCustomer: {
+    _id: IdMap.getId("testCustomer"),
+    email: "oliver@medusa.com",
+    first_name: "Oliver",
+    last_name: "Juhl",
+    billingAddress: {},
+    password_hash: "123456789",
+  },
+  deleteCustomer: {
+    _id: IdMap.getId("deleteId"),
+    email: "oliver@medusa.com",
+    first_name: "Oliver",
+    last_name: "Juhl",
+    billingAddress: {},
+    password_hash: "123456789",
+  },
+}
+
+export const CustomerModelMock = {
+  create: jest.fn().mockReturnValue(Promise.resolve()),
+  updateOne: jest.fn().mockImplementation((query, update) => {
+    return Promise.resolve()
+  }),
+  deleteOne: jest.fn().mockReturnValue(Promise.resolve()),
+  findOne: jest.fn().mockImplementation(query => {
+    if (query._id === IdMap.getId("testCustomer")) {
+      return Promise.resolve(customers.testCustomer)
+    }
+    if (query._id === IdMap.getId("deleteId")) {
+      return Promise.resolve(customers.deleteCustomer)
+    }
+    return Promise.resolve(undefined)
+  }),
+}

packages/medusa/src/models/customer.js

@@ -14,7 +14,6 @@ class CustomerModel extends BaseModel {
     first_name: { type: String, required: true },
     last_name: { type: String, required: true },
     billing_address: { type: AddressSchema },
-    password_hash: { type: String },
     metadata: { type: mongoose.Schema.Types.Mixed, default: {} },
   }
 }