Eyes class
This class provides the main methods used to execute tests and checkpoints.
Eyes method
Syntax
let eyes = new Eyes(runner);
let eyes = new Eyes();
Parameters
runner
Type: EyesRunner [Optional ]
If this parameter is provided, it must be an instance of either the ClassicRunner or VisualGridRunner classes. If a VisualGridRunner is passed then the image will be rendered using the Ultrafast Grid. If this parameter is not provided, then DOM rendering is done using the local browser defined by the driver parameter passed to the Eyes.open method.
Return value
Type: Eyes
Use the object returned to call the various methods provided by the Eyes class.
abort method
Syntax
let result = await eyes.abort();
Parameters
This method does not take any parameters.
Return value
Type: Promise<TestResults>
Remarks
If you call this method on a test that was opened but not closed, then then test will have an aborted status in the Eyes Test Manager. If you call it after the test has been successfully closed, then the call is ignored.
addProperty method
Syntax
let value = eyes.addProperty(name, value);
Parameters
name
Type: string
The name of the property.
value
Type: string
The value associated with the name.
Return value
Type: Configuration
Remarks
- Set multiple properties by calling Eyes.addProperty or Configuration.addProperty multiple times with the same property name and with different values.
- You should not assign a given value to a property more than once in a given test run.
- You can also associate properties with a batch using BatchInfo.addProperty.
check method
Syntax
let result = await eyes.check(name, checkSettings_obj);
let result = await eyes.check(checkSettings_lit);
let result = await eyes.check();
Parameters
name
Type: string
The tag defines a name for the checkpoint in the Eyes Test Manager. The name may be any string and serves to identify the step to the user in the Test manager. You may change the tag value without impacting testing in any way since Eyes does not use the tag to identify the baseline step that corresponds to the checkpoint - Eyes matches steps based on their content and position in the sequences of images of the test. See How Eyes compares checkpoints and baseline images for details.
checkSettings_obj
Type: CheckSettings
The fluent API calls, starting with one of the Target methods.
A series of method calls to the CheckSettings class, in Fluent API style.
checkSettings_lit
Type: CheckSettingsPlain [Optional ]
The fluent API calls, starting with one of the Target methods.
A literal object defined by the CheckSettingsPlain object.
Return value
Type: Promise<MatchResult>
Remarks
For a detailed description of how to use this method see The Eyes SDK check Fluent API.
clearProperties method
Syntax
let value = eyes.clearProperties();
Parameters
This method does not take any parameters.
Return value
Type: Configuration
close method
Syntax
let result = await eyes.close(throwErr);
let result = await eyes.close();
Parameters
throwErr
Type: boolean [Optional ]
If this parameter has a value of true, then if there are new, missing, or mismatched steps, an exception will be thrown. If the parameter is set to false, then an exception will not be thrown for the above cases. If the parameter is not passed, then it is as if a true value was passed.
Return value
Type: Promise<TestResults>
The result of the test can be obtained from the object returned. See TestResults class for a list of what information can be obtained from this object. See TestResults class for a list of what information can be obtained from this object.
getApiKey method
Syntax
let value = eyes.getApiKey();
Parameters
This method does not take any parameters.
Return value
Type: string
getAppName method
Syntax
let value = eyes.getAppName();
Parameters
This method does not take any parameters.
Return value
Type: string
getBaselineBranchName method
Syntax
let value = eyes.getBaselineBranchName();
Parameters
This method does not take any parameters.
Return value
Type: string
getBaselineEnvName method
Syntax
let value = eyes.getBaselineEnvName();
Parameters
This method does not take any parameters.
Return value
Type: string
Returns the value most recently set by a call to setBaselineEnvName, or a value of null if the baseline environment name has not been assigned in this run.
getBatch method
Syntax
let value = eyes.getBatch();
Parameters
This method does not take any parameters.
Return value
Type: BatchInfo
getBranchName method
Syntax
let value = eyes.getBranchName();
Parameters
This method does not take any parameters.
Return value
Type: string
getConfiguration method
Syntax
let value = eyes.getConfiguration();
eyes.configuration = value;
value = eyes.configuration;
Note that this feature is available as both a method and a property.
Parameters
This method does not take any parameters.
Return value
Type: Configuration
getDebugScreenshotsPath method
Syntax
let value = eyes.getDebugScreenshotsPath();
Parameters
This method does not take any parameters.
Return value
Type: string
Remarks
Enable and disable saving screenshots to the local disk using the setSaveDebugScreenshots method.
getDebugScreenshotsPrefix method
Syntax
let value = eyes.getDebugScreenshotsPrefix();
Parameters
This method does not take any parameters.
Return value
Type: string
Remarks
Enable and disable saving screenshots to the local disk using the setSaveDebugScreenshots method.
getDeviceInfo method
Syntax
let value = eyes.getDeviceInfo();
Parameters
This method does not take any parameters.
Return value
Type: string
getDriver method
Syntax
let value = eyes.getDriver();
value = eyes.driver;
Note that this feature is available as both a method and a property.
Parameters
This method does not take any parameters.
Return value
Type: NightwatchAPI
getForceFullPageScreenshot method
Syntax
let value = eyes.getForceFullPageScreenshot();
Parameters
This method does not take any parameters.
Return value
Type: boolean
getHideCaret method
Syntax
let value = eyes.getHideCaret();
Parameters
This method does not take any parameters.
Return value
Type: boolean
getHideScrollbars method
Syntax
let value = eyes.getHideScrollbars();
Parameters
This method does not take any parameters.
Return value
Type: boolean
getHostApp method
Syntax
let value = eyes.getHostApp();
Parameters
This method does not take any parameters.
Return value
Type: string
getHostOS method
Syntax
let value = eyes.getHostOS();
Parameters
This method does not take any parameters.
Return value
Type: string
getIgnoreCaret method
Syntax
let value = eyes.getIgnoreCaret();
Parameters
This method does not take any parameters.
Return value
Type: boolean
getIsDisabled method
Syntax
let value = eyes.getIsDisabled();
Parameters
This method does not take any parameters.
Return value
Type: boolean
If true, then all calls to Eyes are ignored, if false then all calls to Eyes work as usual.
getIsOpen method
Syntax
let value = eyes.getIsOpen();
value = eyes.getIsOpen;
Note that this feature is available as both a method and a property.
Parameters
This method does not take any parameters.
Return value
Type: boolean
Return true if the Eyes.open method has been called on an eyes instance, and Eyes.close or Eyes.abort have not yet been called.
getMatchLevel method
Syntax
let value = eyes.getMatchLevel();
Parameters
This method does not take any parameters.
Return value
Type: MatchLevel
Remarks
For a full description of the affect of each match levels and the different ways to apply them to tests, checkpoints and regions, How to use Eyes match levels.
getMatchTimeout method
Syntax
let value = eyes.getMatchTimeout();
Parameters
This method does not take any parameters.
Return value
Type: number
getParentBranchName method
Syntax
let value = eyes.getParentBranchName();
Parameters
This method does not take any parameters.
Return value
Type: string
getProxy method
Syntax
let value = eyes.getProxy();
Parameters
This method does not take any parameters.
Return value
Type: ProxySettings
getRotation method
Syntax
let value = eyes.getRotation();
Parameters
This method does not take any parameters.
Return value
Type: ImageRotation
The rotation in degrees.
getSaveDebugScreenshots method
Syntax
let value = eyes.getSaveDebugScreenshots();
Parameters
This method does not take any parameters.
Return value
Type: boolean
Remarks
Enable and disable saving screenshots to the local disk using the setSaveDebugScreenshots method.
getSaveDiffs method
Syntax
let value = eyes.getSaveDiffs();
Parameters
This method does not take any parameters.
Return value
Type: boolean
returns true if steps that have mismatches are automatically saved to the baseline.
getSaveNewTests method
Syntax
let value = eyes.getSaveNewTests();
Parameters
This method does not take any parameters.
Return value
Type: boolean
getScaleRatio method
Syntax
let value = eyes.getScaleRatio();
Parameters
This method does not take any parameters.
Return value
Type: number
getScrollRootElement method
Syntax
let value = eyes.getScrollRootElement();
Parameters
This method does not take any parameters.
Return value
Type:
Element|Selector
Returns either the value most recently set using Eyes.setScrollRootElement, or returns an undefined value if this method was not called.
Type definitions
Element
Used to identify an HTML element defined as |{ELEMENT:string}|{'element-6066-11e4-a52e-4f735466cecf':string}|import('nightwatch').NightwatchTypedCallbackResult.
Selector
Used to identify an HTML element defined as |{locateStrategy:import('nightwatch').LocateStrategy;selector:'string'}|string|{selector:string;Type: string}.
getSendDom method
Syntax
let value = eyes.getSendDom();
Parameters
This method does not take any parameters.
Return value
Type: boolean
getServerUrl method
Syntax
let value = eyes.getServerUrl();
Parameters
This method does not take any parameters.
Return value
Type: string
getStitchMode method
Syntax
let value = eyes.getStitchMode();
Parameters
This method does not take any parameters.
Return value
Type: StitchMode
The value returned can be either CSS or SCROLL.
getStitchOverlap method
Syntax
let value = eyes.getStitchOverlap();
Parameters
This method does not take any parameters.
Return value
Type: number
The stitching overlap in pixels.
getViewportSize method
Syntax
let result = await eyes.getViewportSize();
Parameters
This method does not take any parameters.
Return value
Type: Promise<RectangleSize>
getWaitBeforeScreenshots method
Syntax
let value = eyes.getWaitBeforeScreenshots();
Parameters
This method does not take any parameters.
Return value
Type: number
The time Eyes waits before taking a screenshot, in milliseconds.
locate method
Syntax
Call syntax
let regions = eyes.locate({ locatorNames: ["locA", "locB"], firstOnly: false });
Declaration
<TLocator extends string>(settings:VisualLocatorSettings<TLocator>):Promise<Record<TLocator,RegionPlain[]>>
Parameters
settings
Type: VisualLocatorSettings<TLocator>
A literal object that defines the required visual locator names and whether a single or all instances of each locator should be found. See the example below for more details.
Return value
Type: Promise<Record<TLocator,RegionPlain[]>>
Returns a mapping between the names passed in the locatornames field passed as a parameter and the regions in the viewport where the graphic images defined by those locator names were detected. If the firstOnly parameter is passed and has a value of true then only the 1st result found is retuned.
If the image of a particular locator name is not found in the viewport, the locator is mapped to a zero length array. If a locator name is passed, and a locator of that name has not been defined on the Eyes server, the returned locator will be mapped to a value of null instead of an array.
Type definitions
RegionPlain
Used to describe a position and rectangular region in an image. RegionPlain is defined as: LocationPlain&RectangleSizePlain
Remarks
The article Visual locators describes in detail how to associate locator names with graphic images and how to search for instances of the graphic in the browser viewport. The example below is a briefer description of how to search for instances of the locator graphics.
open method
Syntax
let result = await eyes.open(driver);
let result = await eyes.open(driver, appName, testName, viewportSize);
let result = await eyes.open(driver, appName, testName);
let result = await eyes.open(driver, appName);
Parameters
driver
Type: NightwatchAPI
The web driver.
appName
Type: string [Optional ]
The application name. This may be any string. You can set the application name for all tests using the Configuration.setAppName method or Eyes.setAppName method. If you do so, then set this parameter to a value of null to indicate that the configuration default should be used.
testName
Type: string [Optional ]
The name of the test. This name must be unique within the scope of the application name. It may be any string.
viewportSize
Type: RectangleSizePlain [Optional ]
The size of the viewport
The size of the viewport passed as an object.
The size of the viewport passed as an object {'width':, 'height':}
Defines the viewport size of the browser that will be set before the start of the test. If this parameter is not provided then the viewport size will be based on the current browser window size. See Using viewports in Eyes for more details.
Return value
Type: Promise<NightwatchAPI>
The returned web driver is a clone of the driver passed as a parameter. It is recommended that you use the web driver object returned by this method in all further calls to the web driver. This allows Eyes to record these interactions and play them back in the Eyes Test Manager.
Remarks
After making a call to this method, you must eventually terminate the test by calling Eyes.close (in case of a normal completion) or Eyes.abort (in case of an aborted test). If you want to run another test, then it is recommended to do this with a newly created Eyes instance to avoid side effects. However, in principle, it is legal to call Eyes.Open again to start a new test on the same Eyes instance.
setApiKey method
Syntax
eyes.setApiKey(apiKey);
Parameters
apiKey
Type: string
Your API key.
Return value
Type: void
Remarks
Set this immediately after the Eyes object is created (before calling open). If you have an environment variable called APPLITOOLS_API_KEY that is set to the value of your API key, then you do not need to call this method, and Eyes will take the string from the environment value.
setAppName method
Syntax
eyes.setAppName(appName);
Parameters
appName
Type: string
The application name. This may be any string.
Return value
Type: void
Remarks
If you call this method, it must be called before the call to Eyes.open. In the call to Eyes.open, if you provide the application parameter, then it will override the value set here. If you don't provide the parameter or pass a null, then the value set here will be used.
setBaselineBranchName method
Syntax
eyes.setBaselineBranchName(baselineBranchName);
Parameters
baselineBranchName
Type: string
The name of the baseline branch to use.
Return value
Type: void
setBaselineEnvName method
Syntax
eyes.setBaselineEnvName(baselineEnvName);
Parameters
baselineEnvName
Type: string
The name of the baseline environment.
Return value
Type: void
setBatch method
Syntax
eyes.setBatch(batch);
eyes.setBatch(name, id, startedAt_date);
eyes.setBatch(name, id);
eyes.setBatch(name);
eyes.setBatch(name, id, startedAt_str);
Parameters
batch
Type: BatchInfoPlain
An object of the class BatchInfo that describes the batch.
name
Type: string
The batch name. It may be any string.
id
Type: string [Optional ]
If the first parameter is a batch name string (and not a BatchInfo object), then the value passed for this parameter will be used as the id of the created object. All tests that have the same batch ID will appear in the Test results in the same batch. If the value is a falsy value or is not passed and the environment variable APPLITOOLS_BATCH_ID is defined, then the value of the environment variable will be used as the ID. Otherwise, an internal id will be generated.
startedAt_date
Type: Date [Optional ]
If the value is a falsey value or is not passed, then the current date and time will be used.
The start date/time as a JavaScript Date object
startedAt_str
Type: string [Optional ]
If the value is a falsey value or is not passed, then the current date and time will be used.
The value passed must be a string that represents the date/time in the same format as Date().toUTCString().
Return value
Type: void
Remarks
Call this method once before the calls to the open method for all tests that are supposed to be part of this batch.
setBranchName method
Syntax
eyes.setBranchName(branchName);
Parameters
branchName
Type: string
The name of the branch from which the baseline will be taken and saved. This may be any string.
Return value
Type: void
setConfiguration method
Syntax
eyes.setConfiguration(config);
eyes.configuration = value;
value = eyes.configuration;
Note that this feature is available as both a method and a property.
Parameters
config
Type: ConfigurationPlain
A configuration object that has the various properties/methods set to the required values.
Return value
Type: void
Remarks
The typical sequence for configuring a test is:
- Create a Configuration object.
- Set the properties you want to set up, using the various set methods.
- Create an Eyes instance.
- Call the Eyes.setConfiguration method with the configuration object.
- Call the Eyes.open method to start the test session.
Once you've changed the configuration of an Eyes instance by calling Eyes.setConfiguration or by setting a configuration directly on the Eyes instance, if you want to change the configuration, you must use the following sequence:
- Get the current configuration using Eyes.getConfiguration to a local variable.
- Make changes to the local configuration value.
- Assign the local configuration object to the Eyes instance using Eyes.setConfiguration.
setDebugScreenshotsPath method
Syntax
eyes.setDebugScreenshotsPath(path);
Parameters
path
Type: string
A pathname where saved checkpoint images should be stored.
Return value
Type: void
Remarks
Enable and disable saving screenshots to the local disk using the setSaveDebugScreenshots method.
setDebugScreenshotsPrefix method
Syntax
eyes.setDebugScreenshotsPrefix(prefix);
Parameters
prefix
Type: string
A prefix to be added to the saved checkpoint images filename.
Return value
Type: void
Remarks
Enable and disable saving screenshots to the local disk using the setSaveDebugScreenshots method.
setDeviceInfo method
Syntax
eyes.setDeviceInfo(deviceInfo);
Parameters
deviceInfo
Type: string
The name of the device - this is displayed in the Device column in the Test Manager.
Return value
Type: void
setForceFullPageScreenshot method
Syntax
eyes.setForceFullPageScreenshot(forceFullPageScreenshot);
Parameters
forceFullPageScreenshot
Type: boolean
If True, Eyes will do scrolling and stitching if necessary. If False, the result is browser dependent.
Return value
Type: void
setHideCaret method
Syntax
eyes.setHideCaret(hideCaret);
Parameters
hideCaret
Type: boolean
If this parameter has a value of true, then the cursor will be hidden before the image is captured.
Return value
Type: void
Remarks
We recommend using this method instead of Eyes.setIgnoreCaret, Configuration.setIgnoreCaret or CheckSettings.ignoreCaret, since this method/property eliminates cursor related artifacts instead of detecting and ignoring them.
setHideScrollbars method
Syntax
eyes.setHideScrollbars(hideScrollbars);
Parameters
hideScrollbars
Type: boolean
If True scrollbars will be hidden.
Return value
Type: void
setHostApp method
Syntax
eyes.setHostApp(hostApp);
Parameters
hostApp
Type: string
The value to be used for the Host OS Property.
Return value
Type: void
setHostOS method
Syntax
eyes.setHostOS(hostOS);
Parameters
hostOS
Type: string
The value to be used for the Host OS property.
Return value
Type: void
setIgnoreCaret method
Syntax
eyes.setIgnoreCaret(ignoreCaret);
Parameters
ignoreCaret
Type: boolean
If set to true, then Eyes does extra processing to eliminate artifacts introduced by blinking cursors.
Return value
Type: void
Remarks
We recommend using setHideCaret or setHideCaret since this eliminates cursor related artifacts instead of detecting and ignoring them.
setIsDisabled method
Syntax
eyes.setIsDisabled(isDisabled);
Parameters
isDisabled
Type: boolean
If this has a value of true then all method calls to the SDK are ignored. Otherwise, all methods work as usual.
Return value
Type: void
setMatchLevel method
Syntax
eyes.setMatchLevel(matchLevel);
Parameters
matchLevel
Type: MatchLevel
Available match level values are:
For a description of these match levels and the different ways to apply them to tests, checkpoints, and regions, see Eyes match levels.
Return value
Type: void
Remarks
For a full description of the affect of each match levels and the different ways to apply them to tests, checkpoints and regions, How to use Eyes match levels.
setMatchTimeout method
Syntax
eyes.setMatchTimeout(matchTimeout);
Parameters
matchTimeout
Type: number
The timeout to set in milliseconds.
Return value
Type: void
Remarks
You can override the default timeout set by this method for a specific set checkpoint by passing a timeout to one of the check_XXXX methods that support a timeout parameter, e.g. eyes.checkwindow (not yet available in nightwatch javascript)You can also override the timeout for a specific test using the check fluent timeout method
setParentBranchName method
Syntax
eyes.setParentBranchName(parentBranchName);
Parameters
parentBranchName
Type: string
The branch name. This may be any string.
Return value
Type: void
setProxy method
Syntax
eyes.setProxy(proxy);
eyes.setProxy(url, username, password, isHttpOnly);
eyes.setProxy(url, username, password);
eyes.setProxy(url, username);
eyes.setProxy(url);
eyes.setProxy(isEnabled);
Parameters
proxy
Type: ProxySettingsPlain
url
Type: string
The proxy URL to be used by the serverConnector. If it has a value of then no proxy is set.
username
Type: string [Optional ]
The string to pass as the username.
password
Type: string [Optional ]
The string to pass as the password.
isHttpOnly
Type: boolean [Optional ]
A value of true specifies that the SDK should communicate with the server using an http tunnel. Use this if your http proxy blocks https communication.
isEnabled
Type: false
If this parameter is provided, then it must have a value of false, and it means that use of the proxy is disabled.
Return value
Type: void
setRotation method
Syntax
eyes.setRotation(rotation_lit);
eyes.setRotation(rotation_obj);
Parameters
rotation_lit
Type: ImageRotationPlain
The number of degrees to rotate.
A literal object that defines the amount to rotate.
Type definitions
ImageRotationPlain
The legal values that an image may be rotated by. This may have the following values: -270|-180|-90|0|90|180|270
rotation_obj
Type: ImageRotation
The number of degrees to rotate.
A class object that defines the amount to rotate.
Return value
Type: void
setSaveDebugScreenshots method
Syntax
eyes.setSaveDebugScreenshots(save);
Parameters
save
Type: boolean
If set to true, then checkpoint images is saved to a local directory.
Return value
Type: void
setSaveDiffs method
Syntax
eyes.setSaveDiffs(saveDiffs);
Parameters
saveDiffs
Type: boolean
If this has a value of true, then the baseline will be updated with checkpoints that have mismatches.
Return value
Type: void
setSaveNewTests method
Syntax
eyes.setSaveNewTests(saveNewTests);
Parameters
saveNewTests
Type: boolean
If False, the user will need to save the baseline explicitly in the Test Manager for new tests to be saved to the baseline. If True, Eyes will automatically create a baseline for tests with a status of 'new' (the default behavior).
Return value
Type: void
setScaleRatio method
Syntax
eyes.setScaleRatio(scaleRatio);
Parameters
scaleRatio
Type: number
The scale ratio to use.
Return value
Type: void
setScrollRootElement method
Syntax
eyes.setScrollRootElement(scrollRootElement_ele);
eyes.setScrollRootElement(scrollRootElement_sel);
Parameters
scrollRootElement_ele
Type: Element
The element or element descriptor.
An element whose position and bounding rectangle defines the region.
Type definitions
Element
Used to identify an HTML element defined as |{ELEMENT:string}|{'element-6066-11e4-a52e-4f735466cecf':string}|import('nightwatch').NightwatchTypedCallbackResult.
scrollRootElement_sel
Type: Selector
The element or element descriptor.
A selector to an element whose position and bounding rectangle defines the region.
Type definitions
Selector
Used to identify an HTML element defined as |{locateStrategy:import('nightwatch').LocateStrategy;selector:'string'}|string|{selector:string;Type: string}.
Return value
Type: void
setSendDom method
Syntax
eyes.setSendDom(sendDom);
Parameters
sendDom
Type: boolean
If True, DOM information will be sent. If False, DOM information will not be sent.
Return value
Type: void
Remarks
Sending DOM information is enabled by default, so use this method only if you have to disable it.
setServerUrl method
Syntax
eyes.setServerUrl("https://myEyesServer");
Parameters
serverUrl
Type: string
The URL of the Eyes server. Pass a value of null to use the default cloud server.
Return value
Type: void
setStitchMode method
Syntax
eyes.setStitchMode(stitchMode);
Parameters
stitchMode
Type: StitchMode
The stitch mode to use.
Return value
Type: void
setStitchOverlap method
Syntax
eyes.setStitchOverlap(stitchOverlap);
Parameters
stitchOverlap
Type: number
The width of the stitch overlap in pixels.
Return value
Type: void
setViewportSize method
Syntax
await Eyes.setViewportSize(driver, viewportSize);
await Eyes.setViewportSize(size);
Note: This method has both static and non static overloads.
Parameters
driver
Type: NightwatchAPI
The driver returned from the call to open.
viewportSize
Type: RectangleSize
The size of the viewport
The size of the viewport passed as an object.
The size of the viewport passed as an object {'width':, 'height':}
size
Type: RectangleSizePlain
The size of the viewport
The size of the viewport passed as an object.
The size of the viewport passed as an object {'width':, 'height':}
Return value
Type: Promise<void>
Remarks
- Call this method before the call to Eyes.open. Then, when calling the open method, don't pass the viewportSize parameter. If the viewport size is set to be smaller than the actual content, then scrolling should typically be enabled by calling setForceFullPageScreenshot method or setForceFullPageScreenshot method so that the full page image is tested.
This method is a static method.
setWaitBeforeScreenshots method
Syntax
eyes.setWaitBeforeScreenshots(waitBeforeScreenshots);
Parameters
waitBeforeScreenshots
Type: number
The time to wait in milliseconds. Passing a value of less than or equal to zero will cause the default value to be used.
Return value
Type: void