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Developing OpenUI5

This page explains the initial setup, development workflow, and test execution for OpenUI5.

Setting up the OpenUI5 Development Environment

OpenUI5 content is developed in an environment based on Node.js. UI5 Tooling is used as a development server and build tool. Leveraging its newer version UI5 Tooling 3.x allows for a consolidated development setup.

Standard Setup

This setup allows you to start a server for the OpenUI5 project in an easy way:

  1. Install Node.js. This also includes npm, the node package manager.
  2. Clone the OpenUI5 Git repository. You can download and install Git from git-scm.com.
git clone https://github.com/SAP/openui5.git
  1. Install all npm dependencies.
cd openui5
npm install
  1. Start the server
npm start
  1. Open the TestSuite at http://localhost:8080/test-resources/testsuite/testframe.html
  2. You're done!

Tip: Alternatively, you can let your browser open the TestSuite URL automatically by executing npm run testsuite

Configuring the TestSuite Server

Using npm scripts

You can pass arguments to an npm script by using --. As npm start executes the CLI command ui5 serve, you can pass any of its CLI options.

For example, to allow remote access to the server, that is, from an interface other than your computer's loopback/localhost, you can configure the server as follows:

npm start -- --accept-remote-connections
Using the UI5 CLI

Alternatively, you can use the UI5 CLI directly. As it is installed as a local dev dependency during standard setup, it can easily be invoked by the npx shell command. For instance, navigate into the TestSuite project by cd src/testsuite and start the UI5 server:

npx ui5 serve --accept-remote-connections

Of course, if you have a UI5 CLI globally installed via npm install --global @ui5/cli, you could invoke the ui5 command immediately:

ui5 serve --accept-remote-connections

In this case, the UI5 CLI will always try to invoke the local installation. This behavior can be disabled by setting the environment variable UI5_CLI_NO_LOCAL.

In principle, you may be interested in other features of the UI5 CLI than serving the TestSuite. See the UI5 CLI documentation for many comprehensive features such as building a project.

Building the OpenUI5 SDK (Demo Kit)

There are three npm scripts available that can be executed in the root directory of the OpenUI5 project:

  • npm run build-sdk: Build the SDK to src/testsuite/dist
  • npm run serve-sdk: Start a local HTTP server for the directory src/testsuite/dist
  • npm run sdk: Combination of the above
Run the SDK

  1. After you have executed the npm run build-sdk command in the OpenUI5 root directory, a dist directory is created inside the testsuite project.

  2. Start the HTTP server for the dist directory

npm run serve-sdk

  1. Launch the Demo Kit at http://localhost:8000/documentation.html

  2. To launch the Demo Kit showing the restricted APIs as well, just add the visibility URL parameter with a value of internal to the URL http://localhost:8000/documentation.html?visibility=internal

Available Build Configurations
  • OPENUI5_LIBRARIES="sap.m,sap.ui.core": Filter the libraries to build. You don't need to run a full build beforehand. Other libraries will be built as necessary.
Shortcuts

In the OpenUI5 root directory:

  • You can build and serve the SDK using this command:
    npm run sdk
  • You can build specific libraries by specifying them in the OPENUI5_LIBRARIES environment variable:
    OPENUI5_LIBRARIES="sap.m,sap.ui.core" npm run sdk

Legacy Setup

The legacy Grunt-based setup will be discontinued in the near future. It is recommended to already switch to the setup described above for working with the OpenUI5 repository.

To use the legacy setup, execute npm run start-grunt. Note that in the past this was the default npm start behavior.

For details, see legacy Grunt development environment documentation.

Differences to the Standard Setup

  1. /testsuite Path-prefix:

    Standard setup: http://localhost:8080/test-resources/testsuite/testframe.html
    Legacy setup http://localhost:8080/testsuite/test-resources/testsuite/testframe.html

The Development Process

Regular Development: No Build Required

Just modify any source file and reload your browser. Now that's simple, isn't it?

This build-free development process does not feature optimized runtime performance. For example, there are many small requests, which would not be acceptable for remote connections. But it is the most convenient way to modify the OpenUI5 sources. Under the hood there are mainly two mechanisms applied that adapt the sources:

  • The Git repository path contains a folder named like the respective control library (e.g. "sap.m"), which is omitted at runtime. The UI5 CLI server is mapping the locations.
  • The CSS files are transformed (server-side) by the LESS pre-processor during the first request after a CSS file has been modified. This includes mirroring for right-to-left support.

Working With Other UI5 Projects

When working on UI5 applications or libraries that already make use of the @openui5 npm packages like the OpenUI5 Sample App, you can link your local OpenUI5 repository into that project. This allows you to make changes to the project itself as well as to the OpenUI5 libraries simultaneously and test them immediately.

A detailed step-by-step guide on how to achieve such a setup with the OpenUI5 sample app can be found here.

Building UI5

UI5 Tooling is used to build a production-ready version of OpenUI5. Every library needs to be built individually.

Usage:

ui5 build

The build is responsible for the following tasks:

  • Creation of the bundled library.css and library-RTL.css file for all available themes
  • Minification of CSS
  • Minification of JavaScript
  • Bundling the JavaScript modules of the libraries into a single library-preload.js file
  • Bundling of the most important UI5 Core modules into sap-ui-core.js

Testing UI5

Running the Static Code Checks (ESLint)

All UI5 code must conform to a certain ruleset which is checked with ESLint (http://eslint.org/).
To run an ESLint check, navigate to the root directory of the repository and execute:

npm run lint

Running Tests

Test can be executed automatically with the Karma Test-Runner.

To run tests of a library, the --lib needs to be passed.
The <library-name> corresponds to the folder within ./src/, e.g. sap.m.

npm run karma -- --lib=<library-name>

This executes all tests of that library in watch mode, which will automatically re-run tests in case of file changes.

Example: npm run karma -- --lib=sap.m

Run a specific test

Instead of executing all tests of a library, it is also possible to run one test or testsuite only.

In order to find the URL, you can open http://localhost:8080/test.html and search for the test. Copy the URL and remove the origin part (http://localhost:8080/), so that it begins with resources or test-resources.

npm run karma -- --lib=<library-name> --ui5.testpage="<testpage-url>"

Note: The corresponding --lib option needs to still be provided accordingly

Example:

npm run karma -- --lib=sap.m --ui5.testpage="resources/sap/ui/test/starter/Test.qunit.html?testsuite=test-resources/sap/m/qunit/testsuite.mobile.qunit&test=Button"

Coverage

Coverage reporting can be enabled by additionally passing the --coverage option

npm run karma -- --lib=<library-name> --coverage

Continuous integration (CI)

The continuous integration mode can be enabled by additionally passing the --ci option.
This will enable Chrome headless and disable the watch mode, so the execution stops after all tests have been executed.

npm run karma -- --lib=<library-name> --ci

The options --ci and --coverage can be combined.