49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
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const { ApolloServer } = require("apollo-server");
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const { createTestClient } = require("apollo-server-testing");
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const connectToDb = require("../db");
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const actualConnectToDb = jest.requireActual("../db");
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const { config } = require("../index");
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const { query } = createTestClient(new ApolloServer(config));
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// Spy on db.execute, so we can snapshot the queries we run. This can help us
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// keep an eye on perf - watch for tests with way too many queries!
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jest.mock("../db");
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let dbExecuteFn;
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let db;
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beforeAll(() => {
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connectToDb.mockImplementation(async (...args) => {
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db = await actualConnectToDb(...args);
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dbExecuteFn = jest.spyOn(db, "execute");
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return db;
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});
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});
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afterEach(() => {
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dbExecuteFn.mockClear();
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});
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afterAll(() => {
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db.end();
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});
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const getDbCalls = () => dbExecuteFn.mock.calls;
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// Add a new `expect(res).toHaveNoErrors()` to call after GraphQL calls!
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expect.extend({
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toHaveNoErrors(res) {
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if (res.errors) {
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return {
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message: () =>
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`expected no GraphQL errors, but got:\n ${res.errors}`,
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pass: false,
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};
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} else {
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return {
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message: () => `expected GraphQL errors, but there were none`,
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pass: true,
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};
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}
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},
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});
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module.exports = { query, getDbCalls };
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