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# Configuration - [WAVE Test Runner](./README.md)
Using a configuration file, the WAVE Test Runner can be configured to be more
functional in different use cases. This document lists all configuration
parameters and what they are used for.
## Contents
1. [Location and structure](#1-location-and-structure)
2. [Parameters](#2-parameters)
1. [Results directory](#21-results-directory)
2. [Test Timeouts](#22-test-timeouts)
3. [Enable import of results](#23-enable-import-of-results)
4. [Web namespace](#24-web-namespace)
5. [Persisting interval](#25-persisting-interval)
6. [API titles](#26-api-titles)
7. [Enable listing all sessions](#27-enable-listing-all-sessions)
8. [Event caching duration](#28-event-caching-duration)
9. [Enable test type selection](#29-enable-test-type-selection)
## 1. Location and structure
Configuration parameters are defined in a JSON file called `config.json` in
the project root of the WPT runner. This configuration file is also used by
the WPT runner, so any WAVE Test Runner related configuration parameters are
wrapped inside a `wave` object.
```
<PRJ_ROOT>/config.json
```
```json
{
"wave": {
"results": "./results"
}
}
```
All the default values are stored in a configuration file inside the wave
directory:
```
<PRJ_ROOT>/tools/wave/config.default.json
```
```json
{
"wave": {
"results": "./results",
"timeouts": {
"automatic": 60000,
"manual": 300000
},
"enable_import_results": false,
"web_root": "/_wave",
"persisting_interval": 20,
"api_titles": [],
"enable_read_sessions": false,
"event_cache_duration": 60000
}
}
```
[🠑 top](#configuration---wave-test-runner)
## 2. Parameters
### 2.1 Results directory
The results parameter sets where results and session information are stored.
**Parameters**:
```json
{
"results": "<String>"
}
```
- **results**: Path to the results directory. Can be absolute, or relative to
the project root.
**Default**:
```json
{
"results": "./results"
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.2 Test Timeouts
The test timeouts set the default test timeout for different test types.
**Parameters**:
```json
{
"timeouts": {
"automatic": "<Number>",
"manual": "<Number>"
}
}
```
- **timeouts**: Holds the key value pairs for different types of tests
- **automatic**: Default time to wait for automatic tests in milliseconds.
- **manual**: Default time to wait for manual tests in milliseconds.
**Default**:
```json
{
"timeouts": {
"automatic": 600000,
"manual": 300000
}
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.3 Enable import of results
This parameter enables the capability to import session results from other
WAVE Test Runner instances into the current one.
**Parameters**:
```json
{
"enable_import_results": "<Boolean>"
}
```
- **enable_import_results**: Sets whether or not to enable the [REST API endpoint to import results](./rest-api/results-api/import.md)
**Default**:
```json
{
"enable_import_results": "false"
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.4 Web namespace
All static resources and REST API endpoints are accessible under a
configurable namespace. This namespace can be set using the `web_root`
parameter.
**Parameters**:
```json
{
"web_root": "<String>"
}
```
- **web_root**: The namespace to use
**Default**:
```json
{
"web_root": "/_wave"
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.5 Persisting interval
The persisting interval specifies how many tests have to be completed until
all session information is updated in the results directory.
For example, if set to 5, then every 5 completed tests the `info.json` in the
results directory is updated with the current state of the session. When
restarting the server, this state is used to reconstruct all sessions testing
state.
**Parameters**:
```json
{
"persisting_interval": "<Number>"
}
```
- **persisting_interval**: The number of tests to execute until the persisted
session information gets updated
**Default**:
```json
{
"persisting_interval": 20
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.6 API titles
The API titles are used to display a more human readible representation of an
API that tests are available for. Using the parameter it is possible to assign
a name to an API subdirectory.
**Parameters**:
```json
{
"api_titles": [
{
"title": "<String>",
"path": "<String>"
},
...
]
}
```
- **api_titles**: An array of titles assigned to paths
- **title**: The displayed title of the API in the UI
- **path**: The path relative to the project root of the tested API
**Default**:
```json
{
"api_titles": []
}
```
**Example**:
```json
{
"api_titles": [
{
"title": "WebGL",
"path": "/webgl"
},
{
"title": "WebRTC Extensions",
"path": "/webrtc-extensions"
}
]
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.7 Enable listing all sessions
This parameter enables the [REST API endpoint to list all available sessions](./rest-api/sessions-api/read_sessions.md).
**Parameters**:
```json
{
"enable_read_sessions": "<Boolean>"
}
```
- **enable_import_results**: Sets whether or not to enable the REST API endpoint read all sessions
**Default**:
```json
{
"enable_read_sessions": "false"
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.8 Event caching duration
This parameters specifies how long events are hold in the cache. Depending on
how fast clients are able to evaluate events, this value may be changed
accordingly.
**Parameters**:
```json
{
"event_cache_duration": "<Number>"
}
```
- **event_cache_duration**: The duration events are hold in the cache in milliseconds
**Default**:
```json
{
"event_cache_duration": 60000
}
```
[🠑 top](#configuration---wave-test-runner)
### 2.9 Enable test type selection
Sets display of test type configuration UI elements.
**Parameters**:
```json
{
"enable_test_type_selection": "<Boolean>"
}
```
- **enable_test_type_selection**: Whether or not test type UI controls are displayed
**Default**:
False
[🠑 top](#configuration---wave-test-runner)