test: add check for last/before args

Related graphql-compose/graphql-compose-mongoose#120

Author: nodkz

src/__tests__/connectionResolver-test.js

@@ -831,4 +831,38 @@ describe('connectionResolver', () => {
       expect(data.pageInfo.hasPreviousPage).toBe(true);
     });
   });
+
+  describe.only('check last/before args', () => {
+    const defaultResolver = prepareConnectionResolver(userTypeComposer, {
+      countResolverName: 'count',
+      findResolverName: 'findMany',
+      sort: sortOptions,
+    });
+
+    it('should use defaultLimit option', async () => {
+      const res1 = await defaultResolver.resolve({
+        args: {
+          last: 2,
+          before: '',
+          sort: { id: 1 },
+        },
+      });
+      expect(res1.edges).toEqual([
+        { cursor: 'eyJpZCI6MTR9', node: { age: 45, gender: 'm', id: 14, name: 'user14' } },
+        { cursor: 'eyJpZCI6MTV9', node: { age: 45, gender: 'm', id: 15, name: 'user15' } },
+      ]);
+
+      const res2 = await defaultResolver.resolve({
+        args: {
+          last: 2,
+          before: 'eyJpZCI6MTR9',
+          sort: { id: 1 },
+        },
+      });
+      expect(res2.edges).toEqual([
+        { cursor: 'eyJpZCI6MTJ9', node: { age: 47, gender: 'f', id: 12, name: 'user12' } },
+        { cursor: 'eyJpZCI6MTN9', node: { age: 45, gender: 'f', id: 13, name: 'user13' } },
+      ]);
+    });
+  });
 });

src/__tests__/github-issues/graphql-compose-mongoose-120-test.js

@@ -0,0 +1,39 @@
+/* @flow */
+/* eslint-disable no-param-reassign */
+
+import { userTypeComposer, sortOptions } from '../../__mocks__/userTypeComposer';
+import { prepareConnectionResolver } from '../../connectionResolver';
+
+describe('check last/before args', () => {
+  const defaultResolver = prepareConnectionResolver(userTypeComposer, {
+    countResolverName: 'count',
+    findResolverName: 'findMany',
+    sort: sortOptions,
+  });
+
+  it('should use defaultLimit option', async () => {
+    const res1 = await defaultResolver.resolve({
+      args: {
+        last: 2,
+        before: '',
+        sort: { id: 1 },
+      },
+    });
+    expect(res1.edges).toEqual([
+      { cursor: 'eyJpZCI6MTR9', node: { age: 45, gender: 'm', id: 14, name: 'user14' } },
+      { cursor: 'eyJpZCI6MTV9', node: { age: 45, gender: 'm', id: 15, name: 'user15' } },
+    ]);
+
+    const res2 = await defaultResolver.resolve({
+      args: {
+        last: 2,
+        before: 'eyJpZCI6MTR9',
+        sort: { id: 1 },
+      },
+    });
+    expect(res2.edges).toEqual([
+      { cursor: 'eyJpZCI6MTJ9', node: { age: 47, gender: 'f', id: 12, name: 'user12' } },
+      { cursor: 'eyJpZCI6MTN9', node: { age: 45, gender: 'f', id: 13, name: 'user13' } },
+    ]);
+  });
+});