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Switchboard

Test Case Processing Toolset

Switchboard is designed to collect, parse, filter and group tests from code, transform the result and perform the required actions on it.

Concept

The toolset consists of an API module, a Core module, a Runner and an extendable set of Integration modules.

Test

An entity representing a single test (e.g. TestNG or JUnit test, a Cucumber scenario, etc.) consisting of an identifier and its Attributes.

TestRun

An entity representing a group of Tests consisting of an identifier, its Attributes and a set of tests.

Integration

Each Integration module provides specific features implementation or access to interaction with software, e.g. cukes integration can collect Cucumber test data from .feature files, jira integration provides access to Atlassian Jira REST API functionality etc. Each integration is autonomous and is run within its own classpath to evade dependency conflicts.

IntegrationComponent

An implementation of a single atomic component of an integration. All components are executed during integration run in the following sequence:

  • TestExtractor components supplying Tests from an external source, e.g. files, DB, URL etc.
  • TestProcessor components complementing, decoding, splitting etc. specified tests.
  • TestFilter components filtering processed Tests.
  • TestSplitter components splitting tests into TestRuns by specified attributes.
  • TestRunProcessor components processing (complementing, decoding, splitting etc) tests runs.
  • TestRunConsumer components consuming the prepared TestRuns (e.g. test runner, report collector etc.). Each IntegrationComponent is run within the context of an integration it is specified in.

How to run

A Switchboard is run by Runner module: java -jar {path-to-runner-jar} -c {path-to-configuration} -i {path-to-libs} with 2 parameters:

  • -c - JSON configuration file path
  • -i - Paths to integration lib jars and/or directories with libs; glob pattern is supported.

Runner executes all components marked as runnable ("runnable": true in JSON config).

Configuration

Each Integration or Integration set configuration is stored as a JSON, describing the structure, execution order and execution parameters.

Example

This configuration will:

  • collect Cucumber test cases
  • filter tests marked with MarkerAnnotation1 attribute
  • create test batches grouped by 5 tests at most
  • log the result into the console
{
  "@class": "com.devexperts.switchboard.integrations.cukes.CukesIntegration",
  "identifier": "CukesIntegration-1",
  "runnable": false,
  "testExtractors": [
    {
      "@class": "com.devexperts.switchboard.integrations.cukes.CukesTestExtractor",
      "identifier": "CukesTestExtractor-1",
      "testLocations": [
        "src/test/resources/test_classes"
      ],
      "filePattern": "regex:.*.feature",
      "cucumberNativeFilters": "",
      "basePath": "src/test/resources"
    }
  ],
  "testProcessors": [],
  "testFilters": [
    {
      "@class": "com.devexperts.switchboard.impl.filters.AttributesFilter",
      "identifier": "AttributesFilter-1",
      "attributePredicate": {
        "@class": "com.devexperts.switchboard.entities.attributes.AttributeIsPresent",
        "attributeKeyRegex": "MarkerAnnotation1"
      }
    }
  ],
  "testSplitters": [
    {
      "@class": "com.devexperts.switchboard.impl.splitters.TestCountSplitter",
      "identifier": "TestCountSplitter-1",
      "count": 5
    }
  ],
  "testRunProcessors": [],
  "testRunConsumers": [
    {
      "@class": "com.devexperts.switchboard.impl.consumers.LoggingTestRunConsumer",
      "identifier": "TestLoggingConsumer-1"
    }
  ]
}
ComponentReference

Any integration components can be used in other Integrations using a ComponentReference wrapper. A special component type ComponentReference can be used to wrap a component of an integration executed during another Integration run. Component wrapped by ComponentReference is run within the context of its source integration.

Environment variables in the configuration

If a value in configuration should be resolved from the environment during execution the variable should be set as %variable_name%. Here's how you can set Jira password from JIRA_PASSWORD environment variable:

[
  {
    "@class": "com.devexperts.switchboard.integrations.javaparser.JavaParserIntegration",
    "identifier": "JavaParserIntegration - runnable",
    "runnable": true,
    ...
    "uri": "https://jira.somewhere.elsewhere.com",
    "login": "somebody",
    "password": "%JIRA_PASSWORD%"
  }
]