test: add unit test for GraphQLStatementsFormatter class

Author: phani-srikar

packages/amplify-codegen/tests/utils/GraphQLStatementsFormatter.test.js

@@ -0,0 +1,41 @@
+const { GraphQLStatementsFormatter } = require('../../src/utils'); 
+
+describe('GraphQL statements Formatter', () => {
+  const statements = new Map();
+  statements.set('getTodo', `
+    query GetProject($id: ID!) {
+      getProject(id: $id) {
+        id
+        name
+        createdAt
+        updatedAt
+      }
+    }
+  `);
+
+  it('Generates formatted output for JS frontend', () => {
+    const formattedOutput = (new GraphQLStatementsFormatter('javascript')).format(statements);
+    expect(formattedOutput).toMatchSnapshot();
+  });
+
+  it('Generates formatted output for TS frontend', () => {
+    const formattedOutput = (new GraphQLStatementsFormatter('typescript')).format(statements);
+    expect(formattedOutput).toMatchSnapshot();
+  });
+
+  it('Generates formatted output for Flow frontend', () => {
+    const formattedOutput = (new GraphQLStatementsFormatter('flow')).format(statements);
+    expect(formattedOutput).toMatchSnapshot();
+  });
+
+  it('Generates formatted output for Angular frontend', () => {
+    const formattedOutput = (new GraphQLStatementsFormatter('angular')).format(statements);
+    // Note that for Angular, we generate in GraphQL language itself.
+    expect(formattedOutput).toMatchSnapshot();
+  });
+
+  it('Generates formatted output for GraphQL language', () => {
+    const formattedOutput = (new GraphQLStatementsFormatter('graphql')).format(statements);
+    expect(formattedOutput).toMatchSnapshot();
+  });
+});

packages/amplify-codegen/tests/utils/__snapshots__/GraphQLStatementsFormatter.test.js.snap

@@ -0,0 +1,81 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`GraphQL statements Formatter Generates formatted output for Angular frontend 1`] = `
+"# this is an auto generated file. This will be overwritten
+
+query GetProject($id: ID!) {
+  getProject(id: $id) {
+    id
+    name
+    createdAt
+    updatedAt
+  }
+}
+"
+`;
+
+exports[`GraphQL statements Formatter Generates formatted output for Flow frontend 1`] = `
+"// @flow
+// this is an auto generated file. This will be overwritten
+
+export const getTodo = /* GraphQL */ \`
+  query GetProject($id: ID!) {
+    getProject(id: $id) {
+      id
+      name
+      createdAt
+      updatedAt
+    }
+  }
+\`;
+"
+`;
+
+exports[`GraphQL statements Formatter Generates formatted output for GraphQL language 1`] = `
+"# this is an auto generated file. This will be overwritten
+
+query GetProject($id: ID!) {
+  getProject(id: $id) {
+    id
+    name
+    createdAt
+    updatedAt
+  }
+}
+"
+`;
+
+exports[`GraphQL statements Formatter Generates formatted output for JS frontend 1`] = `
+"/* eslint-disable */
+// this is an auto generated file. This will be overwritten
+
+export const getTodo = /* GraphQL */ \`
+  query GetProject($id: ID!) {
+    getProject(id: $id) {
+      id
+      name
+      createdAt
+      updatedAt
+    }
+  }
+\`;
+"
+`;
+
+exports[`GraphQL statements Formatter Generates formatted output for TS frontend 1`] = `
+"/* tslint:disable */
+/* eslint-disable */
+// this is an auto generated file. This will be overwritten
+
+export const getTodo = /* GraphQL */ \`
+  query GetProject($id: ID!) {
+    getProject(id: $id) {
+      id
+      name
+      createdAt
+      updatedAt
+    }
+  }
+\`;
+"
+`;