Table of Contents

• About
• Quickstart
  • Installation
  • Configuration
    • Script Mode
  • Execution
• Karma Configuration Requirements
• Options
  • url
  • type
  • paths
  • configPath
  • mode
    • html
    • script
  • testpage
  • urlParameters
  • failOnEmptyTestPage
  • config
  • tests
  • fileExport
• API
  • helper
    • configureIframeCoverage
• Notes on UI5 Tooling Custom Server Middleware
• License

About

This Karma plugin helps testing your UI5 projects.

Please refer to the Testing section in the UI5 Developer Guide for information about writing tests for your project.

Note: This project has been renamed from karma-openui5 to karma-ui5 with the v1.0.0 release.
For upgrade information, see the Migration Guide.
For the karma-openui5 documentation, see 0.x branch.

Quickstart

Installation

First you need to install the Karma CLI globally:

npm install -g karma-cli

You can find more information on installing Karma here.

Next, you need to add karma and karma-ui5 as devDependencies:

npm install --save-dev karma karma-ui5

To start a browser, you also need to install a launcher, e.g. for Chrome:

npm install --save-dev karma-chrome-launcher

Configuration

To configure the plugin, you need to add two things to your karma.conf.js:

1. Specify "ui5" in the list of frameworks.
2. Set a URL for serving the UI5 resources.
   • Note: This can be omitted when you use UI5 Tooling.

This is an example karma.conf.js file that is sufficient for most projects:

module.exports = function(config) {
  config.set({

    frameworks: ["ui5"],

    ui5: {
      url: "https://openui5.hana.ondemand.com"
    },

    browsers: ["Chrome"]

  });
};

Script Mode

(Optional, next step: Execution)

The configuration above implies to use the html mode, which is recommended. It runs your existing test pages and does not require additional Karma plugins or configuration.

However the script mode is more flexible and better allows integration with other karma plugins / frameworks.

The following steps describe a minimal configuration for the script mode.

With the script mode you need to also include a testing framework and its Karma adapter, like QUnit and karma-qunit.

npm install --save-dev qunit karma-qunit

To use test spies, stubs and mocks you need to install Sinon.JS and karma-sinon.

npm install --save-dev sinon karma-sinon

Both frameworks need to be added to the karma.conf.js.
Note that ui5 should be the first entry.

frameworks: ["ui5", "qunit", "sinon"]

Next, you need to provide the UI5 bootstrap configuration (see config).
The resourceRoots configuration should be aligned with your project namespace.

ui5: {
  config: {
    async: true,
    resourceRoots: {
      "sap.ui.demo.todo": "./base/webapp"
    }
  }
}

Last but not least the test modules need to be listed, so that they are executed.

ui5: {
  tests: [
    "sap/ui/demo/todo/test/unit/AllTests"
  ]
}

Here is the full example for the script mode:

module.exports = function(config) {
  config.set({
    frameworks: ["ui5", "qunit", "sinon"],
    ui5: {
      url: "https://openui5.hana.ondemand.com",
      mode: "script",
      config: {
        async: true,
        resourceRoots: {
          "sap.ui.demo.todo": "./base/webapp"
        }
      },
      tests: [
        "sap/ui/demo/todo/test/unit/AllTests"
      ]
    },
    browsers: ["Chrome"]
  });
};

Execution

With the above configuration, karma will by default run all tests in Chrome and listen for changed files to execute them again (watch mode).

karma start

For CI testing, you can run Chrome in headless mode and execute the tests only once using the singleRun option:

module.exports = function(config) {
  config.set({

    // ...

    browsers: ["ChromeHeadless"],
    singleRun: true

  });
};

The options can also be set via CLI arguments:

karma start --browsers=ChromeHeadless --singleRun=true

For more information, see the "Configuration File" documentation from Karma.

Karma Configuration Requirements

There is an important requirement for using this plugin:

• The karma basePath option must point to your project root, not to a subfolder like "webapp". This is the default when your karma.conf.js is in the project root.
  It is required for the type detection and automatic inclusion of your project files.

Options

All configuration options need to be defined in an ui5 object in your Karma configuration:

module.exports = function(config) {
  config.set({

    ui5: {

    }

  });
};

url

Type: string
CLI: --ui5.url

The URL where UI5 should be loaded from.

When omitted and the project contains a ui5.yaml file, UI5 Tooling will be used as server middleware. Beware of restrictions outlined in Notes on UI5 Tooling Custom Server Middleware.

Example:

ui5: {
  url: "https://openui5.hana.ondemand.com"
}

type

Type: enum ("application" / "library")

Defines the project type.
If not set, it is automatically detected based on

• the type defined in ui5.yaml, or
• existing folders
  • "webapp" => application
  • "src" / "test" => library

Example:

ui5: {
  type: "application"
}

paths

Type: object

Custom path mappings for project folders based on the type.
Use this option only when the automatic type detection does not work because the project uses a different folder structure.

Example application:

ui5: {
  type: "application",
  paths: {
    webapp: "src/main/webapp"
  }
}

Example library:

ui5: {
  type: "library",
  paths: {
    src: "src/main/js",
    test: "src/test/js"
  }
}

configPath

Type: string
Default: "ui5.yaml"
CLI: --ui5.configPath

Path to the UI5 configuration file. It is resolved relative to the project root.

Example:

ui5: {
  configPath: "ui5-test.yaml"
}

mode

Type: enum ("html" / "script")
Default: "html"

Configures the mode how tests should be executed.

html

The HTML mode runs QUnit test suites and test pages in a separate context.
It has built-in support for QUnit. The QUnit adapter must not be used in combination with this mode. Other framework plugins must also not be used. Instead, the required libraries such as sinon should be loaded within the test.

ui5: {
  mode: "html"
}

Specific config options:

• testpage
• urlParameters
• failOnEmptyTestPage

script

The script mode includes the UI5 bootstrap script. It allows to pass UI5 config and loads your test modules.
You need to also install and configure an adapter for your test framework such as QUnit, to enable test execution and reporting.

ui5: {
  mode: "script"
}

Specific config options:

• config
• tests

testpage

Type: string
CLI: --ui5.testpage
Specific to "html" mode

A file path pointing to a test page or test suite that should be executed.
The path needs to be relative to the project root.

If not set, the project is scanned for available test suites (testsuite.qunit.html).
When exactly one test suite is found, it will be used as testpage. Otherwise, all found pages are printed out and one of them needs to be configured manually.

Example:

ui5: {
  mode: "html",
  testpage: "webapp/test/myTestPage.qunit.html"
}

urlParameters

Type: Array
Specific to "html" mode

URL parameters to append to every testpage.

Example:

ui5: {
    mode: "html",
    urlParameters: [{
        key: "hidepassed",
        value: true
    }]
}

failOnEmptyTestPage

Type: boolean
Default: false
CLI: --ui5.failOnEmptyTestPage
Specific to "html" mode

Reports an error when a test page does not define any tests.
The Karma configuration failOnEmptyTestSuite only covers the case when no tests were defined at all, but not when just one testpage doesn't define tests.

Example:

ui5: {
        mode: "html",
        failOnEmptyTestPage: true
}

config

Type: object
Specific to "script" mode

Configuration of the UI5 bootstrap.

Example:

ui5: {
  mode: "script",
  config: {
    bindingSyntax: "complex",
    compatVersion: "edge",
    async: true,
    resourceRoots: {
      "sap.ui.demo.todo": "./base/webapp"
    }
  }
}

tests

Type: Array
Specific to "script" mode

List of test modules that should be loaded (via sap.ui.require).
If not provided, the test files must be included in the karma files config to load them with <script> tags.

Example:

ui5: {
  mode: "script",
  tests: [
    "sap/ui/demo/todo/test/unit/AllTests",
    "sap/ui/demo/todo/test/integration/AllJourneys"
  ]
}

fileExport

Type: boolean or object
Default: false

Configures whether report files provided by tools like UI5 Support Assistant are exported to the file system.
Optionally, an output directory can be set to specify the export path.

Example boolean:

ui5: {
  fileExport: true
}

Example object:

ui5: {
  fileExport: {
    outputDir: "directory/to/export/files"
  }
}

Projects can also add report files by themselves by setting or enhancing the global window._$files array in the executed source code in the following way:

window._$files = window._$files || [];
window._$files.push({
  name: "file_name.txt",
  content: "file content"
});

API

helper

This plugin also comes with a helper module to be used in your Karma configuration file.

configureIframeCoverage

Enables code coverage for iframes. Can only be used in combination with the karma-coverage plugin (v2.0.0+).

Must be called from the karma configuration function after the coverage plugin has been configured. The config object must be passed as a parameter.

module.exports = function(config) {
    config.set({

        // ...

    });
    require("karma-ui5/helper").configureIframeCoverage(config);
};

Notes on UI5 Tooling Custom Server Middleware

If the url-option is not used, and if the project contains a ui5.yaml file, karma-ui5 will automatically use UI5 Tooling to start an internal server. Any custom middleware configured in the ui5.yaml will be used automatically.

However, since Karma uses the connect framework, as opposed to UI5 Tooling's express, custom middleware might not always work as expected. Compared to connect, the express framework provides a more versatile API to middleware.

Therefore, if you plan to use custom middleware in an integrated scenario with karma-ui5, you must restrict the middleware to using the connect API only to ensure compatibility.

Alternatively, you can start a server with the usual ui5 serve command and configure the corresponding URL.

For more information see UI5 Tooling - Custom UI5 Server Middleware.

Big Thanks

Cross-browser Testing Platform and Open Source <3 Provided by Sauce Labs.