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How to use _take_screenshot method in ATX

Best Python code snippet using ATX

platform_TabletMode.py

Source:platform_TabletMode.py

...56        utils.system(self.SPOOF_CMD + self.PORTRAIT_SENSOR_0)57        time.sleep(self._SHORT_WAIT)58        utils.system(self.SPOOF_CMD + self.PORTRAIT_SENSOR_1)59        time.sleep(self._WAIT)60    def _take_screenshot(self, suffix):61        """62        Captures a screenshot of the current VT screen in BMP format.63        @param suffixcurrent_vt: desired vt for screenshot.64        @returns the path of the screenshot file.65        """66        extension = 'bmp'67        return graphics_utils.take_screenshot(self.resultsdir,68                                              suffix + '_tablet_mode',69                                              extension)70    def _verify_difference(self, screenshot1, screenshot2,71                           difference_percent_threshold=5):72        """73        Make sure screenshots are sufficiently different.74        @param screenshot1: path to screenshot.75        @param screenshot2: path to screenshot.76        @param difference_percent_threshold: threshold for difference.77        @returns number of errors found (0 or 1).78        """79        filename1 = screenshot1.split('/')[-1]80        filename2 = screenshot2.split('/')[-1]81        diff = get_percent_difference(screenshot1, screenshot2)82        logging.info("Screenshot 1 and 2 diff: %s" % diff)83        if not diff >= difference_percent_threshold:84            error = ('Screenshots differ by %d %%: %s vs %s'85                     % (diff, filename1, filename2))86            self.ERRORS.append(error)87    def _verify_similarity(self, screenshot1, screenshot2,88                           similarity_percent_threshold=5):89        """90        Make sure screenshots are the same or similar.91        @param screenshot1: path to screenshot.92        @param screenshot2: path to screenshot.93        @param difference_percent_threshold: threshold for similarity.94        @returns number of errors found (0 or 1).95        """96        filename1 = screenshot1.split('/')[-1]97        filename2 = screenshot2.split('/')[-1]98        diff = get_percent_difference(screenshot1, screenshot2)99        logging.info("Screenshot 1 and 2 similarity diff: %s" % diff)100        if not diff <= similarity_percent_threshold:101            error = ('Screenshots differ by %d %%: %s vs %s'102                     % (diff, filename1, filename2))103            self.ERRORS.append(error)104    def run_once(self):105        """106        Run tablet mode test to spoof various tablet modes and ensure107        device changes accordingly.108        """109        # Ensure we start in laptop mode.110        self._revert_laptop()111        logging.info("Take screenshot for initial laptop mode.")112        laptop_start = self._take_screenshot('laptop_start')113        logging.info("Entering landscape mode.")114        self._spoof_tablet_landscape()115        landscape = self._take_screenshot('landscape')116        self._revert_laptop()117        logging.info("Entering portrait mode.")118        self._spoof_tablet_portrait()119        portrait = self._take_screenshot('portrait')120        self._revert_laptop()121        laptop_end = self._take_screenshot('laptop_end')122        # Compare screenshots and determine the number of errors.123        self._verify_similarity(laptop_start, laptop_end)124        self._verify_difference(laptop_start, landscape)125        self._verify_difference(landscape, portrait)126        self._verify_difference(portrait, laptop_end)127        if self.ERRORS:128            raise error.TestFail('; '.join(set(self.ERRORS)))129    def cleanup(self):...

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