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Merge pull request #38 from RGPosadas/BUG-1/es6-modules-failing-test
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es6 modules failing test
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RGPosadas authored Feb 28, 2020
2 parents 392552f + c02599a commit b619687
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2 changes: 1 addition & 1 deletion .travis.yml
Original file line number Diff line number Diff line change
Expand Up @@ -13,4 +13,4 @@ script:
- pre-commit run -a
- npm install -g expo-cli --loglevel=error
- npm install --log-level=error
#- npm test # Tests disabled for now
- npm test
18 changes: 12 additions & 6 deletions App.test.js
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@@ -1,11 +1,17 @@
import React from "react";
import App from "./App";

import renderer from "react-test-renderer";

import App from "./App";
// Mock application
jest.mock("expo", () => ({
AppLoading: "AppLoading"
}));

jest.mock("./navigation/navigation", () => "navigation");

describe("<App />", () => {
it("has 1 child", () => {
const tree = renderer.create(<App />).toJSON();
expect(tree.children.length).toBe(1);
});
// Snapshot test
test("renders correctly", () => {
const tree = renderer.create(<App />).toJSON();
expect(tree).toMatchSnapshot();
});
3 changes: 3 additions & 0 deletions __snapshots__/App.test.js.snap
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@@ -0,0 +1,3 @@
// Jest Snapshot v1, https://goo.gl/fbAQLP

exports[`renders correctly 1`] = `<navigation />`;
18 changes: 13 additions & 5 deletions babel.config.js
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@@ -1,6 +1,14 @@
module.exports = function(api) {
api.cache(true);
return {
presets: ["babel-preset-expo"]
};
module.exports = {
presets: [
[
"@babel/preset-env",
{
targets: {
node: "current"
}
}
],
"babel-preset-expo"
],
plugins: ["@babel/plugin-proposal-class-properties"]
};
193 changes: 193 additions & 0 deletions jest.config.js
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@@ -0,0 +1,193 @@
// For a detailed explanation regarding each configuration property, visit:
// https://jestjs.io/docs/en/configuration.html

module.exports = {
// All imported modules in your tests should be mocked automatically
automock: false,

// Stop running tests after `n` failures
// bail: 0,

// Respect "browser" field in package.json when resolving modules
// browser: false,

// The directory where Jest should store its cached dependency information
// cacheDirectory: "/private/var/folders/yr/8t4wss656yn9j60qkpl2r1l80000gn/T/jest_dx",

// Automatically clear mock calls and instances between every test
clearMocks: true,

// Indicates whether the coverage information should be collected while executing the test
// collectCoverage: false,

// An array of glob patterns indicating a set of files for which coverage information should be collected
// collectCoverageFrom: null,

// The directory where Jest should output its coverage files
coverageDirectory: "coverage",

// An array of regexp pattern strings used to skip coverage collection
// coveragePathIgnorePatterns: [
// "/node_modules/"
// ],

// A list of reporter names that Jest uses when writing coverage reports
// coverageReporters: [
// "json",
// "text",
// "lcov",
// "clover"
// ],

// An object that configures minimum threshold enforcement for coverage results
// coverageThreshold: null,

// A path to a custom dependency extractor
// dependencyExtractor: null,

// Make calling deprecated APIs throw helpful error messages
// errorOnDeprecated: false,

// Force coverage collection from ignored files using an array of glob patterns
// forceCoverageMatch: [],

// A path to a module which exports an async function that is triggered once before all test suites
// globalSetup: null,

// A path to a module which exports an async function that is triggered once after all test suites
// globalTeardown: null,

// A set of global variables that need to be available in all test environments
// globals: {},

// The maximum amount of workers used to run your tests. Can be specified as % or a number. E.g. maxWorkers: 10% will use 10% of your CPU amount + 1 as the maximum worker number. maxWorkers: 2 will use a maximum of 2 workers.
// maxWorkers: "50%",

// An array of directory names to be searched recursively up from the requiring module's location
// moduleDirectories: [
// "node_modules"
// ],

// An array of file extensions your modules use
// moduleFileExtensions: [
// "js",
// "json",
// "jsx",
// "ts",
// "tsx",
// "node"
// ],

// A map from regular expressions to module names that allow to stub out resources with a single module
// moduleNameMapper: {},

// An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
// modulePathIgnorePatterns:
// [
// "node_modules/react-native-screens/src/screens.native.js"
// ],

// Activates notifications for test results
// notify: false,

// An enum that specifies notification mode. Requires { notify: true }
// notifyMode: "failure-change",

// A preset that is used as a base for Jest's configuration
preset: "jest-expo",

// Run tests from one or more projects
// projects: null,

// Use this configuration option to add custom reporters to Jest
// reporters: undefined,

// Automatically reset mock state between every test
// resetMocks: false,

// Reset the module registry before running each individual test
// resetModules: false,

// A path to a custom resolver
// resolver: null,

// Automatically restore mock state between every test
// restoreMocks: false,

// The root directory that Jest should scan for tests and modules within
// rootDir: null,

// A list of paths to directories that Jest should use to search for files in
// roots: [
// "<rootDir>"
// ],

// Allows you to use a custom runner instead of Jest's default test runner
// runner: "jest-runner",

// The paths to modules that run some code to configure or set up the testing environment before each test
setupFiles: ["./setupJest.js"],

// A list of paths to modules that run some code to configure or set up the testing framework before each test
// setupFilesAfterEnv: [],

// A list of paths to snapshot serializer modules Jest should use for snapshot testing
// snapshotSerializers: [],

// The test environment that will be used for testing
testEnvironment: "node",

// Options that will be passed to the testEnvironment
// testEnvironmentOptions: {},

// Adds a location field to test results
// testLocationInResults: false,

// The glob patterns Jest uses to detect test files
// testMatch: [
// "**/__tests__/**/*.[jt]s?(x)",
// "**/?(*.)+(spec|test).[tj]s?(x)"
// ],

// An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
// testPathIgnorePatterns: [
// "/node_modules/"
// ],

// The regexp pattern or array of patterns that Jest uses to detect test files
// testRegex: [],

// This option allows the use of a custom results processor
// testResultsProcessor: null,

// This option allows use of a custom test runner
// testRunner: "jasmine2",

// This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
// testURL: "http://localhost",

// Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout"
// timers: "real",

// A map from regular expressions to paths to transformers
transform: {
"^.+\\.jsx?$": "babel-jest"
},

// An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
transformIgnorePatterns: [
"node_modules/(?!(jest-)?react-native|react-clone-referenced-element|@react-native-community|expo(nent)?|@expo(nent)?/.*|react-navigation|@react-navigation/.*|@unimodules/.*|sentry-expo|native-base|react-native-screens|react-native|rn-sliding-up-panel|react-native-maps|react-test-renderer)"
]

// An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
// unmockedModulePathPatterns: undefined,

// Indicates whether each individual test should be reported during the run
// verbose: null,

// An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode
// watchPathIgnorePatterns: [],

// Whether to use watchman for file crawling
// watchman: true,
};
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