added support for taking screenshots only on failed specs

README.md

@@ -91,6 +91,18 @@ new ScreenShotReporter({
 
 Default is `false`.
 
+### Screenshots only for failed test cases (optional)
+Also you can define if you want capture screenshots only from failed test cases using the `takeScreenShotsOnlyForFailedSpecs:` option:
+
+```javascript
+new ScreenShotReporter({
+   baseDirectory: '/tmp/screenshots'
+   , takeScreenShotsOnlyForFailedSpecs: true
+});
+```
+
+Default is `false`.
+
 ## Postprocess Meta Data
 A screenshot is saved as PNG image. Along with it, a JSON file with a matching filename is created.
 

index.js

@@ -96,6 +96,8 @@ function ScreenshotReporter(options) {
 	this.metaDataBuilder = options.metaDataBuilder || defaultMetaDataBuilder;
 	this.takeScreenShotsForSkippedSpecs =
 		options.takeScreenShotsForSkippedSpecs || false;
+	this.takeScreenShotsOnlyForFailedSpecs =
+		options.takeScreenShotsOnlyForFailedSpecs || false;
 }
 
 /** Function: reportSpecResults
@@ -114,6 +116,9 @@ function reportSpecResults(spec) {
 	if(!self.takeScreenShotsForSkippedSpecs && results.skipped) {
 		return;
 	}
+	if(self.takeScreenShotsOnlyForFailedSpecs && results.passed()) {
+		return;
+	}
 
 	browser.takeScreenshot().then(function (png) {
 		browser.getCapabilities().then(function (capabilities) {
@@ -160,4 +165,4 @@ function reportSpecResults(spec) {
 
 };
 
-module.exports = ScreenshotReporter;
+module.exports = ScreenshotReporter;