1 #!/usr/bin/python 2 3 """ 4 Copyright 2014 Google Inc. 5 6 Use of this source code is governed by a BSD-style license that can be 7 found in the LICENSE file. 8 9 Test the render_pictures binary. 10 """ 11 12 # System-level imports 13 import copy 14 import json 15 import os 16 import shutil 17 import tempfile 18 19 # Imports from within Skia 20 import base_unittest 21 22 # Maximum length of text diffs to show when tests fail 23 MAX_DIFF_LENGTH = 30000 24 25 EXPECTED_HEADER_CONTENTS = { 26 "type" : "ChecksummedImages", 27 "revision" : 1, 28 } 29 30 # Manually verified: 640x400 red rectangle with black border 31 # Standard expectations will be set up in such a way that this image fails 32 # the comparison. 33 RED_WHOLEIMAGE = { 34 "checksumAlgorithm" : "bitmap-64bitMD5", 35 "checksumValue" : 11092453015575919668, 36 "comparisonResult" : "failed", 37 "filepath" : "red_skp.png", 38 } 39 40 # Manually verified: 640x400 green rectangle with black border 41 # Standard expectations will be set up in such a way that this image passes 42 # the comparison. 43 GREEN_WHOLEIMAGE = { 44 "checksumAlgorithm" : "bitmap-64bitMD5", 45 "checksumValue" : 8891695120562235492, 46 "comparisonResult" : "succeeded", 47 "filepath" : "green_skp.png", 48 } 49 50 # Manually verified these 6 images, all 256x256 tiles, 51 # consistent with a tiled version of the 640x400 red rect 52 # with black borders. 53 # Standard expectations will be set up in such a way that these images fail 54 # the comparison. 55 RED_TILES = [{ 56 "checksumAlgorithm" : "bitmap-64bitMD5", 57 "checksumValue" : 5815827069051002745, 58 "comparisonResult" : "failed", 59 "filepath" : "red_skp-tile0.png", 60 },{ 61 "checksumAlgorithm" : "bitmap-64bitMD5", 62 "checksumValue" : 9323613075234140270, 63 "comparisonResult" : "failed", 64 "filepath" : "red_skp-tile1.png", 65 }, { 66 "checksumAlgorithm" : "bitmap-64bitMD5", 67 "checksumValue" : 16670399404877552232, 68 "comparisonResult" : "failed", 69 "filepath" : "red_skp-tile2.png", 70 }, { 71 "checksumAlgorithm" : "bitmap-64bitMD5", 72 "checksumValue" : 2507897274083364964, 73 "comparisonResult" : "failed", 74 "filepath" : "red_skp-tile3.png", 75 }, { 76 "checksumAlgorithm" : "bitmap-64bitMD5", 77 "checksumValue" : 7325267995523877959, 78 "comparisonResult" : "failed", 79 "filepath" : "red_skp-tile4.png", 80 }, { 81 "checksumAlgorithm" : "bitmap-64bitMD5", 82 "checksumValue" : 2181381724594493116, 83 "comparisonResult" : "failed", 84 "filepath" : "red_skp-tile5.png", 85 }] 86 87 # Manually verified these 6 images, all 256x256 tiles, 88 # consistent with a tiled version of the 640x400 green rect 89 # with black borders. 90 # Standard expectations will be set up in such a way that these images pass 91 # the comparison. 92 GREEN_TILES = [{ 93 "checksumAlgorithm" : "bitmap-64bitMD5", 94 "checksumValue" : 12587324416545178013, 95 "comparisonResult" : "succeeded", 96 "filepath" : "green_skp-tile0.png", 97 }, { 98 "checksumAlgorithm" : "bitmap-64bitMD5", 99 "checksumValue" : 7624374914829746293, 100 "comparisonResult" : "succeeded", 101 "filepath" : "green_skp-tile1.png", 102 }, { 103 "checksumAlgorithm" : "bitmap-64bitMD5", 104 "checksumValue" : 5686489729535631913, 105 "comparisonResult" : "succeeded", 106 "filepath" : "green_skp-tile2.png", 107 }, { 108 "checksumAlgorithm" : "bitmap-64bitMD5", 109 "checksumValue" : 7980646035555096146, 110 "comparisonResult" : "succeeded", 111 "filepath" : "green_skp-tile3.png", 112 }, { 113 "checksumAlgorithm" : "bitmap-64bitMD5", 114 "checksumValue" : 17817086664365875131, 115 "comparisonResult" : "succeeded", 116 "filepath" : "green_skp-tile4.png", 117 }, { 118 "checksumAlgorithm" : "bitmap-64bitMD5", 119 "checksumValue" : 10673669813016809363, 120 "comparisonResult" : "succeeded", 121 "filepath" : "green_skp-tile5.png", 122 }] 123 124 125 def modified_dict(input_dict, modification_dict): 126 """Returns a dict, with some modifications applied to it. 127 128 Args: 129 input_dict: a dictionary (which will be copied, not modified in place) 130 modification_dict: a set of key/value pairs to overwrite in the dict 131 """ 132 output_dict = input_dict.copy() 133 output_dict.update(modification_dict) 134 return output_dict 135 136 137 def modified_list_of_dicts(input_list, modification_dict): 138 """Returns a list of dicts, with some modifications applied to each dict. 139 140 Args: 141 input_list: a list of dictionaries; these dicts will be copied, not 142 modified in place 143 modification_dict: a set of key/value pairs to overwrite in each dict 144 within input_list 145 """ 146 output_list = [] 147 for input_dict in input_list: 148 output_dict = modified_dict(input_dict, modification_dict) 149 output_list.append(output_dict) 150 return output_list 151 152 153 class RenderPicturesTest(base_unittest.TestCase): 154 155 def setUp(self): 156 self.maxDiff = MAX_DIFF_LENGTH 157 self._expectations_dir = tempfile.mkdtemp() 158 self._input_skp_dir = tempfile.mkdtemp() 159 # All output of render_pictures binary will go into this directory. 160 self._output_dir = tempfile.mkdtemp() 161 162 def tearDown(self): 163 shutil.rmtree(self._expectations_dir) 164 shutil.rmtree(self._input_skp_dir) 165 shutil.rmtree(self._output_dir) 166 167 def test_tiled_whole_image(self): 168 """Run render_pictures with tiles and --writeWholeImage flag. 169 170 TODO(epoger): This test generates undesired results! The JSON summary 171 includes both whole-image and tiled-images (as it should), but only 172 whole-images are written out to disk. See http://skbug.com/2463 173 Once I fix that, I should add a similar test that exercises mismatchPath. 174 175 TODO(epoger): I noticed that when this is run without --writePath being 176 specified, this test writes red_skp.png and green_skp.png to the current 177 directory. We should fix that... if --writePath is not specified, this 178 probably shouldn't write out red_skp.png and green_skp.png at all! 179 See http://skbug.com/2464 180 """ 181 output_json_path = os.path.join(self._output_dir, 'actuals.json') 182 write_path_dir = self.create_empty_dir( 183 path=os.path.join(self._output_dir, 'writePath')) 184 self._generate_skps() 185 expectations_path = self._create_expectations() 186 self._run_render_pictures([ 187 '-r', self._input_skp_dir, 188 '--bbh', 'grid', '256', '256', 189 '--mode', 'tile', '256', '256', 190 '--readJsonSummaryPath', expectations_path, 191 '--writeJsonSummaryPath', output_json_path, 192 '--writePath', write_path_dir, 193 '--writeWholeImage']) 194 expected_summary_dict = { 195 "header" : EXPECTED_HEADER_CONTENTS, 196 "actual-results" : { 197 "red.skp": { 198 "tiled-images": RED_TILES, 199 "whole-image": RED_WHOLEIMAGE, 200 }, 201 "green.skp": { 202 "tiled-images": GREEN_TILES, 203 "whole-image": GREEN_WHOLEIMAGE, 204 } 205 } 206 } 207 self._assert_json_contents(output_json_path, expected_summary_dict) 208 self._assert_directory_contents( 209 write_path_dir, ['red_skp.png', 'green_skp.png']) 210 211 def test_missing_tile_and_whole_image(self): 212 """test_tiled_whole_image, but missing expectations for some images. 213 """ 214 output_json_path = os.path.join(self._output_dir, 'actuals.json') 215 write_path_dir = self.create_empty_dir( 216 path=os.path.join(self._output_dir, 'writePath')) 217 self._generate_skps() 218 expectations_path = self._create_expectations(missing_some_images=True) 219 self._run_render_pictures([ 220 '-r', self._input_skp_dir, 221 '--bbh', 'grid', '256', '256', 222 '--mode', 'tile', '256', '256', 223 '--readJsonSummaryPath', expectations_path, 224 '--writeJsonSummaryPath', output_json_path, 225 '--writePath', write_path_dir, 226 '--writeWholeImage']) 227 modified_red_tiles = copy.deepcopy(RED_TILES) 228 modified_red_tiles[5]['comparisonResult'] = 'no-comparison' 229 expected_summary_dict = { 230 "header" : EXPECTED_HEADER_CONTENTS, 231 "actual-results" : { 232 "red.skp": { 233 "tiled-images": modified_red_tiles, 234 "whole-image": modified_dict( 235 RED_WHOLEIMAGE, {"comparisonResult" : "no-comparison"}), 236 }, 237 "green.skp": { 238 "tiled-images": GREEN_TILES, 239 "whole-image": GREEN_WHOLEIMAGE, 240 } 241 } 242 } 243 self._assert_json_contents(output_json_path, expected_summary_dict) 244 245 def _test_untiled(self, expectations_path=None, expected_summary_dict=None, 246 additional_args=None): 247 """Base for multiple tests without tiles. 248 249 Args: 250 expectations_path: path we should pass using --readJsonSummaryPath, or 251 None if we should create the default expectations file 252 expected_summary_dict: dict we should compare against the output actual 253 results summary, or None if we should use a default comparison dict 254 additional_args: array of command-line args to add when we run 255 render_pictures 256 """ 257 output_json_path = os.path.join(self._output_dir, 'actuals.json') 258 write_path_dir = self.create_empty_dir( 259 path=os.path.join(self._output_dir, 'writePath')) 260 self._generate_skps() 261 if expectations_path == None: 262 expectations_path = self._create_expectations() 263 args = [ 264 '-r', self._input_skp_dir, 265 '--readJsonSummaryPath', expectations_path, 266 '--writePath', write_path_dir, 267 '--writeJsonSummaryPath', output_json_path, 268 ] 269 if additional_args: 270 args.extend(additional_args) 271 self._run_render_pictures(args) 272 if expected_summary_dict == None: 273 expected_summary_dict = { 274 "header" : EXPECTED_HEADER_CONTENTS, 275 "actual-results" : { 276 "red.skp": { 277 "whole-image": RED_WHOLEIMAGE, 278 }, 279 "green.skp": { 280 "whole-image": GREEN_WHOLEIMAGE, 281 } 282 } 283 } 284 self._assert_json_contents(output_json_path, expected_summary_dict) 285 self._assert_directory_contents( 286 write_path_dir, ['red_skp.png', 'green_skp.png']) 287 288 def test_untiled(self): 289 """Basic test without tiles.""" 290 self._test_untiled() 291 292 def test_untiled_empty_expectations_file(self): 293 """Same as test_untiled, but with an empty expectations file.""" 294 expectations_path = os.path.join(self._expectations_dir, 'empty') 295 with open(expectations_path, 'w') as fh: 296 pass 297 expected_summary_dict = { 298 "header" : EXPECTED_HEADER_CONTENTS, 299 "actual-results" : { 300 "red.skp": { 301 "whole-image": modified_dict( 302 RED_WHOLEIMAGE, {"comparisonResult" : "no-comparison"}), 303 }, 304 "green.skp": { 305 "whole-image": modified_dict( 306 GREEN_WHOLEIMAGE, {"comparisonResult" : "no-comparison"}), 307 } 308 } 309 } 310 self._test_untiled(expectations_path=expectations_path, 311 expected_summary_dict=expected_summary_dict) 312 313 def test_untiled_writeChecksumBasedFilenames(self): 314 """Same as test_untiled, but with --writeChecksumBasedFilenames.""" 315 output_json_path = os.path.join(self._output_dir, 'actuals.json') 316 write_path_dir = self.create_empty_dir( 317 path=os.path.join(self._output_dir, 'writePath')) 318 self._generate_skps() 319 self._run_render_pictures(['-r', self._input_skp_dir, 320 '--writeChecksumBasedFilenames', 321 '--writePath', write_path_dir, 322 '--writeJsonSummaryPath', output_json_path]) 323 expected_summary_dict = { 324 "header" : EXPECTED_HEADER_CONTENTS, 325 "actual-results" : { 326 "red.skp": { 327 # Manually verified: 640x400 red rectangle with black border 328 "whole-image": { 329 "checksumAlgorithm" : "bitmap-64bitMD5", 330 "checksumValue" : 11092453015575919668, 331 "comparisonResult" : "no-comparison", 332 "filepath" : "red_skp/bitmap-64bitMD5_11092453015575919668.png", 333 }, 334 }, 335 "green.skp": { 336 # Manually verified: 640x400 green rectangle with black border 337 "whole-image": { 338 "checksumAlgorithm" : "bitmap-64bitMD5", 339 "checksumValue" : 8891695120562235492, 340 "comparisonResult" : "no-comparison", 341 "filepath" : "green_skp/bitmap-64bitMD5_8891695120562235492.png", 342 }, 343 } 344 } 345 } 346 self._assert_json_contents(output_json_path, expected_summary_dict) 347 self._assert_directory_contents(write_path_dir, ['red_skp', 'green_skp']) 348 self._assert_directory_contents( 349 os.path.join(write_path_dir, 'red_skp'), 350 ['bitmap-64bitMD5_11092453015575919668.png']) 351 self._assert_directory_contents( 352 os.path.join(write_path_dir, 'green_skp'), 353 ['bitmap-64bitMD5_8891695120562235492.png']) 354 355 def test_untiled_validate(self): 356 """Same as test_untiled, but with --validate.""" 357 self._test_untiled(additional_args=['--validate']) 358 359 def test_untiled_without_writePath(self): 360 """Same as test_untiled, but without --writePath.""" 361 output_json_path = os.path.join(self._output_dir, 'actuals.json') 362 self._generate_skps() 363 expectations_path = self._create_expectations() 364 self._run_render_pictures([ 365 '-r', self._input_skp_dir, 366 '--readJsonSummaryPath', expectations_path, 367 '--writeJsonSummaryPath', output_json_path]) 368 expected_summary_dict = { 369 "header" : EXPECTED_HEADER_CONTENTS, 370 "actual-results" : { 371 "red.skp": { 372 "whole-image": RED_WHOLEIMAGE, 373 }, 374 "green.skp": { 375 "whole-image": GREEN_WHOLEIMAGE, 376 } 377 } 378 } 379 self._assert_json_contents(output_json_path, expected_summary_dict) 380 381 def test_tiled(self): 382 """Generate individual tiles.""" 383 output_json_path = os.path.join(self._output_dir, 'actuals.json') 384 write_path_dir = self.create_empty_dir( 385 path=os.path.join(self._output_dir, 'writePath')) 386 self._generate_skps() 387 expectations_path = self._create_expectations() 388 self._run_render_pictures([ 389 '-r', self._input_skp_dir, 390 '--bbh', 'grid', '256', '256', 391 '--mode', 'tile', '256', '256', 392 '--readJsonSummaryPath', expectations_path, 393 '--writePath', write_path_dir, 394 '--writeJsonSummaryPath', output_json_path]) 395 expected_summary_dict = { 396 "header" : EXPECTED_HEADER_CONTENTS, 397 "actual-results" : { 398 "red.skp": { 399 "tiled-images": RED_TILES, 400 }, 401 "green.skp": { 402 "tiled-images": GREEN_TILES, 403 } 404 } 405 } 406 self._assert_json_contents(output_json_path, expected_summary_dict) 407 self._assert_directory_contents( 408 write_path_dir, 409 ['red_skp-tile0.png', 'red_skp-tile1.png', 'red_skp-tile2.png', 410 'red_skp-tile3.png', 'red_skp-tile4.png', 'red_skp-tile5.png', 411 'green_skp-tile0.png', 'green_skp-tile1.png', 'green_skp-tile2.png', 412 'green_skp-tile3.png', 'green_skp-tile4.png', 'green_skp-tile5.png', 413 ]) 414 415 def test_tiled_mismatches(self): 416 """Same as test_tiled, but only write out mismatching images.""" 417 output_json_path = os.path.join(self._output_dir, 'actuals.json') 418 mismatch_path_dir = self.create_empty_dir( 419 path=os.path.join(self._output_dir, 'mismatchPath')) 420 self._generate_skps() 421 expectations_path = self._create_expectations() 422 self._run_render_pictures([ 423 '-r', self._input_skp_dir, 424 '--bbh', 'grid', '256', '256', 425 '--mode', 'tile', '256', '256', 426 '--readJsonSummaryPath', expectations_path, 427 '--mismatchPath', mismatch_path_dir, 428 '--writeJsonSummaryPath', output_json_path]) 429 expected_summary_dict = { 430 "header" : EXPECTED_HEADER_CONTENTS, 431 "actual-results" : { 432 "red.skp": { 433 "tiled-images": RED_TILES, 434 }, 435 "green.skp": { 436 "tiled-images": GREEN_TILES, 437 } 438 } 439 } 440 self._assert_json_contents(output_json_path, expected_summary_dict) 441 self._assert_directory_contents( 442 mismatch_path_dir, 443 ['red_skp-tile0.png', 'red_skp-tile1.png', 'red_skp-tile2.png', 444 'red_skp-tile3.png', 'red_skp-tile4.png', 'red_skp-tile5.png', 445 ]) 446 447 def test_tiled_writeChecksumBasedFilenames(self): 448 """Same as test_tiled, but with --writeChecksumBasedFilenames.""" 449 output_json_path = os.path.join(self._output_dir, 'actuals.json') 450 write_path_dir = self.create_empty_dir( 451 path=os.path.join(self._output_dir, 'writePath')) 452 self._generate_skps() 453 self._run_render_pictures(['-r', self._input_skp_dir, 454 '--bbh', 'grid', '256', '256', 455 '--mode', 'tile', '256', '256', 456 '--writeChecksumBasedFilenames', 457 '--writePath', write_path_dir, 458 '--writeJsonSummaryPath', output_json_path]) 459 expected_summary_dict = { 460 "header" : EXPECTED_HEADER_CONTENTS, 461 "actual-results" : { 462 "red.skp": { 463 # Manually verified these 6 images, all 256x256 tiles, 464 # consistent with a tiled version of the 640x400 red rect 465 # with black borders. 466 "tiled-images": [{ 467 "checksumAlgorithm" : "bitmap-64bitMD5", 468 "checksumValue" : 5815827069051002745, 469 "comparisonResult" : "no-comparison", 470 "filepath" : "red_skp/bitmap-64bitMD5_5815827069051002745.png", 471 }, { 472 "checksumAlgorithm" : "bitmap-64bitMD5", 473 "checksumValue" : 9323613075234140270, 474 "comparisonResult" : "no-comparison", 475 "filepath" : "red_skp/bitmap-64bitMD5_9323613075234140270.png", 476 }, { 477 "checksumAlgorithm" : "bitmap-64bitMD5", 478 "checksumValue" : 16670399404877552232, 479 "comparisonResult" : "no-comparison", 480 "filepath" : "red_skp/bitmap-64bitMD5_16670399404877552232.png", 481 }, { 482 "checksumAlgorithm" : "bitmap-64bitMD5", 483 "checksumValue" : 2507897274083364964, 484 "comparisonResult" : "no-comparison", 485 "filepath" : "red_skp/bitmap-64bitMD5_2507897274083364964.png", 486 }, { 487 "checksumAlgorithm" : "bitmap-64bitMD5", 488 "checksumValue" : 7325267995523877959, 489 "comparisonResult" : "no-comparison", 490 "filepath" : "red_skp/bitmap-64bitMD5_7325267995523877959.png", 491 }, { 492 "checksumAlgorithm" : "bitmap-64bitMD5", 493 "checksumValue" : 2181381724594493116, 494 "comparisonResult" : "no-comparison", 495 "filepath" : "red_skp/bitmap-64bitMD5_2181381724594493116.png", 496 }], 497 }, 498 "green.skp": { 499 # Manually verified these 6 images, all 256x256 tiles, 500 # consistent with a tiled version of the 640x400 green rect 501 # with black borders. 502 "tiled-images": [{ 503 "checksumAlgorithm" : "bitmap-64bitMD5", 504 "checksumValue" : 12587324416545178013, 505 "comparisonResult" : "no-comparison", 506 "filepath" : "green_skp/bitmap-64bitMD5_12587324416545178013.png", 507 }, { 508 "checksumAlgorithm" : "bitmap-64bitMD5", 509 "checksumValue" : 7624374914829746293, 510 "comparisonResult" : "no-comparison", 511 "filepath" : "green_skp/bitmap-64bitMD5_7624374914829746293.png", 512 }, { 513 "checksumAlgorithm" : "bitmap-64bitMD5", 514 "checksumValue" : 5686489729535631913, 515 "comparisonResult" : "no-comparison", 516 "filepath" : "green_skp/bitmap-64bitMD5_5686489729535631913.png", 517 }, { 518 "checksumAlgorithm" : "bitmap-64bitMD5", 519 "checksumValue" : 7980646035555096146, 520 "comparisonResult" : "no-comparison", 521 "filepath" : "green_skp/bitmap-64bitMD5_7980646035555096146.png", 522 }, { 523 "checksumAlgorithm" : "bitmap-64bitMD5", 524 "checksumValue" : 17817086664365875131, 525 "comparisonResult" : "no-comparison", 526 "filepath" : "green_skp/bitmap-64bitMD5_17817086664365875131.png", 527 }, { 528 "checksumAlgorithm" : "bitmap-64bitMD5", 529 "checksumValue" : 10673669813016809363, 530 "comparisonResult" : "no-comparison", 531 "filepath" : "green_skp/bitmap-64bitMD5_10673669813016809363.png", 532 }], 533 } 534 } 535 } 536 self._assert_json_contents(output_json_path, expected_summary_dict) 537 self._assert_directory_contents(write_path_dir, ['red_skp', 'green_skp']) 538 self._assert_directory_contents( 539 os.path.join(write_path_dir, 'red_skp'), 540 ['bitmap-64bitMD5_5815827069051002745.png', 541 'bitmap-64bitMD5_9323613075234140270.png', 542 'bitmap-64bitMD5_16670399404877552232.png', 543 'bitmap-64bitMD5_2507897274083364964.png', 544 'bitmap-64bitMD5_7325267995523877959.png', 545 'bitmap-64bitMD5_2181381724594493116.png']) 546 self._assert_directory_contents( 547 os.path.join(write_path_dir, 'green_skp'), 548 ['bitmap-64bitMD5_12587324416545178013.png', 549 'bitmap-64bitMD5_7624374914829746293.png', 550 'bitmap-64bitMD5_5686489729535631913.png', 551 'bitmap-64bitMD5_7980646035555096146.png', 552 'bitmap-64bitMD5_17817086664365875131.png', 553 'bitmap-64bitMD5_10673669813016809363.png']) 554 555 def _run_render_pictures(self, args): 556 binary = self.find_path_to_program('render_pictures') 557 return self.run_command([binary, 558 '--clone', '1', 559 '--config', '8888', 560 ] + args) 561 562 def _create_expectations(self, missing_some_images=False, 563 rel_path='expectations.json'): 564 """Creates expectations JSON file within self._expectations_dir . 565 566 Args: 567 missing_some_images: (bool) whether to remove expectations for a subset 568 of the images 569 rel_path: (string) relative path within self._expectations_dir to write 570 the expectations into 571 572 Returns: full path to the expectations file created. 573 """ 574 expectations_dict = { 575 "header" : EXPECTED_HEADER_CONTENTS, 576 "expected-results" : { 577 # red.skp: these should fail the comparison 578 "red.skp": { 579 "tiled-images": modified_list_of_dicts( 580 RED_TILES, {'checksumValue': 11111}), 581 "whole-image": modified_dict( 582 RED_WHOLEIMAGE, {'checksumValue': 22222}), 583 }, 584 # green.skp: these should pass the comparison 585 "green.skp": { 586 "tiled-images": GREEN_TILES, 587 "whole-image": GREEN_WHOLEIMAGE, 588 } 589 } 590 } 591 if missing_some_images: 592 del expectations_dict['expected-results']['red.skp']['whole-image'] 593 del expectations_dict['expected-results']['red.skp']['tiled-images'][-1] 594 path = os.path.join(self._expectations_dir, rel_path) 595 with open(path, 'w') as fh: 596 json.dump(expectations_dict, fh) 597 return path 598 599 def _generate_skps(self): 600 """Runs the skpmaker binary to generate files in self._input_skp_dir.""" 601 self._run_skpmaker( 602 output_path=os.path.join(self._input_skp_dir, 'red.skp'), red=255) 603 self._run_skpmaker( 604 output_path=os.path.join(self._input_skp_dir, 'green.skp'), green=255) 605 606 def _run_skpmaker(self, output_path, red=0, green=0, blue=0, 607 width=640, height=400): 608 """Runs the skpmaker binary to generate SKP with known characteristics. 609 610 Args: 611 output_path: Filepath to write the SKP into. 612 red: Value of red color channel in image, 0-255. 613 green: Value of green color channel in image, 0-255. 614 blue: Value of blue color channel in image, 0-255. 615 width: Width of canvas to create. 616 height: Height of canvas to create. 617 """ 618 binary = self.find_path_to_program('skpmaker') 619 return self.run_command([binary, 620 '--red', str(red), 621 '--green', str(green), 622 '--blue', str(blue), 623 '--width', str(width), 624 '--height', str(height), 625 '--writePath', str(output_path), 626 ]) 627 628 def _assert_directory_contents(self, dir_path, expected_filenames): 629 """Asserts that files found in a dir are identical to expected_filenames. 630 631 Args: 632 dir_path: Path to a directory on local disk. 633 expected_filenames: Set containing the expected filenames within the dir. 634 635 Raises: 636 AssertionError: contents of the directory are not identical to 637 expected_filenames. 638 """ 639 self.assertEqual(set(os.listdir(dir_path)), set(expected_filenames)) 640 641 def _assert_json_contents(self, json_path, expected_dict): 642 """Asserts that contents of a JSON file are identical to expected_dict. 643 644 Args: 645 json_path: Path to a JSON file. 646 expected_dict: Dictionary indicating the expected contents of the JSON 647 file. 648 649 Raises: 650 AssertionError: contents of the JSON file are not identical to 651 expected_dict. 652 """ 653 prettyprinted_expected_dict = json.dumps(expected_dict, sort_keys=True, 654 indent=2) 655 with open(json_path, 'r') as fh: 656 prettyprinted_json_dict = json.dumps(json.load(fh), sort_keys=True, 657 indent=2) 658 self.assertMultiLineEqual(prettyprinted_expected_dict, 659 prettyprinted_json_dict) 660 661 662 def main(): 663 base_unittest.main(RenderPicturesTest) 664 665 666 if __name__ == '__main__': 667 main() 668
