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709 lines
27 KiB
709 lines
27 KiB
# Copyright (c) 2018 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""A number of common spirv result checks coded in mixin classes.
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A test case can use these checks by declaring their enclosing mixin classes
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as superclass and providing the expected_* variables required by the check_*()
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methods in the mixin classes.
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"""
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import difflib
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import functools
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import os
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import re
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import subprocess
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import traceback
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from spirv_test_framework import SpirvTest
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from builtins import bytes
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DEFAULT_SPIRV_VERSION = 0x010000
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def convert_to_unix_line_endings(source):
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"""Converts all line endings in source to be unix line endings."""
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result = source.replace('\r\n', '\n').replace('\r', '\n')
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return result
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def substitute_file_extension(filename, extension):
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"""Substitutes file extension, respecting known shader extensions.
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foo.vert -> foo.vert.[extension] [similarly for .frag, .comp, etc.]
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foo.glsl -> foo.[extension]
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foo.unknown -> foo.[extension]
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foo -> foo.[extension]
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"""
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if filename[-5:] not in [
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'.vert', '.frag', '.tesc', '.tese', '.geom', '.comp', '.spvasm'
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]:
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return filename.rsplit('.', 1)[0] + '.' + extension
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else:
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return filename + '.' + extension
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def get_object_filename(source_filename):
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"""Gets the object filename for the given source file."""
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return substitute_file_extension(source_filename, 'spv')
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def get_assembly_filename(source_filename):
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"""Gets the assembly filename for the given source file."""
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return substitute_file_extension(source_filename, 'spvasm')
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def verify_file_non_empty(filename):
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"""Checks that a given file exists and is not empty."""
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if not os.path.isfile(filename):
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return False, 'Cannot find file: ' + filename
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if not os.path.getsize(filename):
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return False, 'Empty file: ' + filename
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return True, ''
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class ReturnCodeIsZero(SpirvTest):
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"""Mixin class for checking that the return code is zero."""
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def check_return_code_is_zero(self, status):
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if status.returncode:
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return False, 'Non-zero return code: {ret}\n'.format(
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ret=status.returncode)
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return True, ''
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class ReturnCodeIsNonZero(SpirvTest):
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"""Mixin class for checking that the return code is not zero."""
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def check_return_code_is_nonzero(self, status):
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if not status.returncode:
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return False, 'return code is 0'
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return True, ''
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class NoOutputOnStdout(SpirvTest):
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"""Mixin class for checking that there is no output on stdout."""
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def check_no_output_on_stdout(self, status):
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if status.stdout:
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return False, 'Non empty stdout: {out}\n'.format(out=status.stdout)
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return True, ''
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class NoOutputOnStderr(SpirvTest):
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"""Mixin class for checking that there is no output on stderr."""
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def check_no_output_on_stderr(self, status):
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if status.stderr:
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return False, 'Non empty stderr: {err}\n'.format(err=status.stderr)
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return True, ''
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class SuccessfulReturn(ReturnCodeIsZero, NoOutputOnStdout, NoOutputOnStderr):
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"""Mixin class for checking that return code is zero and no output on
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stdout and stderr."""
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pass
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class NoGeneratedFiles(SpirvTest):
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"""Mixin class for checking that there is no file generated."""
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def check_no_generated_files(self, status):
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all_files = os.listdir(status.directory)
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input_files = status.input_filenames
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if all([f.startswith(status.directory) for f in input_files]):
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all_files = [os.path.join(status.directory, f) for f in all_files]
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generated_files = set(all_files) - set(input_files)
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if len(generated_files) == 0:
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return True, ''
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else:
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return False, 'Extra files generated: {}'.format(generated_files)
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class CorrectBinaryLengthAndPreamble(SpirvTest):
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"""Provides methods for verifying preamble for a SPIR-V binary."""
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def verify_binary_length_and_header(self, binary, spv_version=0x10000):
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"""Checks that the given SPIR-V binary has valid length and header.
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Returns:
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False, error string if anything is invalid
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True, '' otherwise
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Args:
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binary: a bytes object containing the SPIR-V binary
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spv_version: target SPIR-V version number, with same encoding
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as the version word in a SPIR-V header.
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"""
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def read_word(binary, index, little_endian):
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"""Reads the index-th word from the given binary file."""
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word = binary[index * 4:(index + 1) * 4]
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if little_endian:
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word = reversed(word)
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return functools.reduce(lambda w, b: (w << 8) | b, word, 0)
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def check_endianness(binary):
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"""Checks the endianness of the given SPIR-V binary.
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Returns:
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True if it's little endian, False if it's big endian.
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None if magic number is wrong.
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"""
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first_word = read_word(binary, 0, True)
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if first_word == 0x07230203:
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return True
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first_word = read_word(binary, 0, False)
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if first_word == 0x07230203:
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return False
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return None
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num_bytes = len(binary)
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if num_bytes % 4 != 0:
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return False, ('Incorrect SPV binary: size should be a multiple'
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' of words')
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if num_bytes < 20:
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return False, 'Incorrect SPV binary: size less than 5 words'
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preamble = binary[0:19]
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little_endian = check_endianness(preamble)
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# SPIR-V module magic number
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if little_endian is None:
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return False, 'Incorrect SPV binary: wrong magic number'
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# SPIR-V version number
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version = read_word(preamble, 1, little_endian)
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# TODO(dneto): Recent Glslang uses version word 0 for opengl_compat
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# profile
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if version != spv_version and version != 0:
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return False, 'Incorrect SPV binary: wrong version number: ' + hex(version) + ' expected ' + hex(spv_version)
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# Shaderc-over-Glslang (0x000d....) or
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# SPIRV-Tools (0x0007....) generator number
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if read_word(preamble, 2, little_endian) != 0x000d0007 and \
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read_word(preamble, 2, little_endian) != 0x00070000:
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return False, ('Incorrect SPV binary: wrong generator magic ' 'number')
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# reserved for instruction schema
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if read_word(preamble, 4, little_endian) != 0:
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return False, 'Incorrect SPV binary: the 5th byte should be 0'
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return True, ''
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class CorrectObjectFilePreamble(CorrectBinaryLengthAndPreamble):
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"""Provides methods for verifying preamble for a SPV object file."""
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def verify_object_file_preamble(self,
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filename,
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spv_version=DEFAULT_SPIRV_VERSION):
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"""Checks that the given SPIR-V binary file has correct preamble."""
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success, message = verify_file_non_empty(filename)
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if not success:
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return False, message
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with open(filename, 'rb') as object_file:
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object_file.seek(0, os.SEEK_END)
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num_bytes = object_file.tell()
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object_file.seek(0)
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binary = bytes(object_file.read())
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return self.verify_binary_length_and_header(binary, spv_version)
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return True, ''
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class CorrectAssemblyFilePreamble(SpirvTest):
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"""Provides methods for verifying preamble for a SPV assembly file."""
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def verify_assembly_file_preamble(self, filename):
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success, message = verify_file_non_empty(filename)
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if not success:
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return False, message
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with open(filename) as assembly_file:
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line1 = assembly_file.readline()
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line2 = assembly_file.readline()
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line3 = assembly_file.readline()
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if (line1 != '; SPIR-V\n' or line2 != '; Version: 1.0\n' or
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(not line3.startswith('; Generator: Google Shaderc over Glslang;'))):
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return False, 'Incorrect SPV assembly'
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return True, ''
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class ValidObjectFile(SuccessfulReturn, CorrectObjectFilePreamble):
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"""Mixin class for checking that every input file generates a valid SPIR-V 1.0
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object file following the object file naming rule, and there is no output on
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stdout/stderr."""
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def check_object_file_preamble(self, status):
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for input_filename in status.input_filenames:
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object_filename = get_object_filename(input_filename)
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success, message = self.verify_object_file_preamble(
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os.path.join(status.directory, object_filename))
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if not success:
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return False, message
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return True, ''
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class ValidObjectFile1_3(ReturnCodeIsZero, CorrectObjectFilePreamble):
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"""Mixin class for checking that every input file generates a valid SPIR-V 1.3
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object file following the object file naming rule, and there is no output on
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stdout/stderr."""
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def check_object_file_preamble(self, status):
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for input_filename in status.input_filenames:
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object_filename = get_object_filename(input_filename)
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success, message = self.verify_object_file_preamble(
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os.path.join(status.directory, object_filename), 0x10300)
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if not success:
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return False, message
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return True, ''
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class ValidObjectFile1_5(ReturnCodeIsZero, CorrectObjectFilePreamble):
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"""Mixin class for checking that every input file generates a valid SPIR-V 1.5
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object file following the object file naming rule, and there is no output on
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stdout/stderr."""
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def check_object_file_preamble(self, status):
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for input_filename in status.input_filenames:
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object_filename = get_object_filename(input_filename)
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success, message = self.verify_object_file_preamble(
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os.path.join(status.directory, object_filename), 0x10500)
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if not success:
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return False, message
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return True, ''
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class ValidObjectFileWithAssemblySubstr(SuccessfulReturn,
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CorrectObjectFilePreamble):
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"""Mixin class for checking that every input file generates a valid object
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file following the object file naming rule, there is no output on
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stdout/stderr, and the disassmbly contains a specified substring per
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input.
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"""
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def check_object_file_disassembly(self, status):
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for an_input in status.inputs:
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object_filename = get_object_filename(an_input.filename)
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obj_file = str(os.path.join(status.directory, object_filename))
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success, message = self.verify_object_file_preamble(obj_file)
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if not success:
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return False, message
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cmd = [status.test_manager.disassembler_path, '--no-color', obj_file]
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process = subprocess.Popen(
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args=cmd,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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cwd=status.directory)
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output = process.communicate(None)
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disassembly = output[0]
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if not isinstance(an_input.assembly_substr, str):
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return False, 'Missing assembly_substr member'
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if an_input.assembly_substr not in disassembly:
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return False, ('Incorrect disassembly output:\n{asm}\n'
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'Expected substring not found:\n{exp}'.format(
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asm=disassembly, exp=an_input.assembly_substr))
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return True, ''
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class ValidNamedObjectFile(SuccessfulReturn, CorrectObjectFilePreamble):
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"""Mixin class for checking that a list of object files with the given
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names are correctly generated, and there is no output on stdout/stderr.
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To mix in this class, subclasses need to provide expected_object_filenames
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as the expected object filenames.
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"""
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def check_object_file_preamble(self, status):
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for object_filename in self.expected_object_filenames:
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success, message = self.verify_object_file_preamble(
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os.path.join(status.directory, object_filename))
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if not success:
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return False, message
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return True, ''
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class ValidFileContents(SpirvTest):
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"""Mixin class to test that a specific file contains specific text
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To mix in this class, subclasses need to provide expected_file_contents as
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the contents of the file and target_filename to determine the location."""
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def check_file(self, status):
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target_filename = os.path.join(status.directory, self.target_filename)
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if not os.path.isfile(target_filename):
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return False, 'Cannot find file: ' + target_filename
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with open(target_filename, 'r') as target_file:
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file_contents = target_file.read()
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if isinstance(self.expected_file_contents, str):
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if file_contents == self.expected_file_contents:
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return True, ''
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return False, ('Incorrect file output: \n{act}\n'
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'Expected:\n{exp}'
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'With diff:\n{diff}'.format(
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act=file_contents,
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exp=self.expected_file_contents,
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diff='\n'.join(
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list(
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difflib.unified_diff(
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self.expected_file_contents.split('\n'),
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file_contents.split('\n'),
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fromfile='expected_output',
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tofile='actual_output')))))
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elif isinstance(self.expected_file_contents, type(re.compile(''))):
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if self.expected_file_contents.search(file_contents):
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return True, ''
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return False, ('Incorrect file output: \n{act}\n'
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'Expected matching regex pattern:\n{exp}'.format(
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act=file_contents,
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exp=self.expected_file_contents.pattern))
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return False, (
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'Could not open target file ' + target_filename + ' for reading')
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class ValidAssemblyFile(SuccessfulReturn, CorrectAssemblyFilePreamble):
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"""Mixin class for checking that every input file generates a valid assembly
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file following the assembly file naming rule, and there is no output on
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stdout/stderr."""
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def check_assembly_file_preamble(self, status):
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for input_filename in status.input_filenames:
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assembly_filename = get_assembly_filename(input_filename)
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success, message = self.verify_assembly_file_preamble(
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os.path.join(status.directory, assembly_filename))
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if not success:
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return False, message
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return True, ''
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class ValidAssemblyFileWithSubstr(ValidAssemblyFile):
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"""Mixin class for checking that every input file generates a valid assembly
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file following the assembly file naming rule, there is no output on
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stdout/stderr, and all assembly files have the given substring specified
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by expected_assembly_substr.
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To mix in this class, subclasses need to provde expected_assembly_substr
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as the expected substring.
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"""
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def check_assembly_with_substr(self, status):
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for input_filename in status.input_filenames:
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assembly_filename = get_assembly_filename(input_filename)
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success, message = self.verify_assembly_file_preamble(
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os.path.join(status.directory, assembly_filename))
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if not success:
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return False, message
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with open(assembly_filename, 'r') as f:
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content = f.read()
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if self.expected_assembly_substr not in convert_to_unix_line_endings(
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content):
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return False, ('Incorrect assembly output:\n{asm}\n'
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'Expected substring not found:\n{exp}'.format(
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asm=content, exp=self.expected_assembly_substr))
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return True, ''
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class ValidAssemblyFileWithoutSubstr(ValidAssemblyFile):
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"""Mixin class for checking that every input file generates a valid assembly
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file following the assembly file naming rule, there is no output on
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stdout/stderr, and no assembly files have the given substring specified
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by unexpected_assembly_substr.
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To mix in this class, subclasses need to provde unexpected_assembly_substr
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as the substring we expect not to see.
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"""
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def check_assembly_for_substr(self, status):
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for input_filename in status.input_filenames:
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assembly_filename = get_assembly_filename(input_filename)
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success, message = self.verify_assembly_file_preamble(
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os.path.join(status.directory, assembly_filename))
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if not success:
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return False, message
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with open(assembly_filename, 'r') as f:
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content = f.read()
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if self.unexpected_assembly_substr in convert_to_unix_line_endings(
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content):
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return False, ('Incorrect assembly output:\n{asm}\n'
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'Unexpected substring found:\n{unexp}'.format(
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asm=content, exp=self.unexpected_assembly_substr))
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return True, ''
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class ValidNamedAssemblyFile(SuccessfulReturn, CorrectAssemblyFilePreamble):
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"""Mixin class for checking that a list of assembly files with the given
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names are correctly generated, and there is no output on stdout/stderr.
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To mix in this class, subclasses need to provide expected_assembly_filenames
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as the expected assembly filenames.
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"""
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def check_object_file_preamble(self, status):
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for assembly_filename in self.expected_assembly_filenames:
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success, message = self.verify_assembly_file_preamble(
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os.path.join(status.directory, assembly_filename))
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if not success:
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return False, message
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return True, ''
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class ErrorMessage(SpirvTest):
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"""Mixin class for tests that fail with a specific error message.
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To mix in this class, subclasses need to provide expected_error as the
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expected error message.
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The test should fail if the subprocess was terminated by a signal.
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"""
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def check_has_error_message(self, status):
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if not status.returncode:
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return False, ('Expected error message, but returned success from '
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'command execution')
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if status.returncode < 0:
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# On Unix, a negative value -N for Popen.returncode indicates
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# termination by signal N.
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# https://docs.python.org/2/library/subprocess.html
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return False, ('Expected error message, but command was terminated by '
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'signal ' + str(status.returncode))
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if not status.stderr:
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return False, 'Expected error message, but no output on stderr'
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if self.expected_error != convert_to_unix_line_endings(status.stderr):
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return False, ('Incorrect stderr output:\n{act}\n'
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'Expected:\n{exp}'.format(
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act=status.stderr, exp=self.expected_error))
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return True, ''
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class ErrorMessageSubstr(SpirvTest):
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"""Mixin class for tests that fail with a specific substring in the error
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message.
|
|
|
|
To mix in this class, subclasses need to provide expected_error_substr as
|
|
the expected error message substring.
|
|
|
|
The test should fail if the subprocess was terminated by a signal.
|
|
"""
|
|
|
|
def check_has_error_message_as_substring(self, status):
|
|
if not status.returncode:
|
|
return False, ('Expected error message, but returned success from '
|
|
'command execution')
|
|
if status.returncode < 0:
|
|
# On Unix, a negative value -N for Popen.returncode indicates
|
|
# termination by signal N.
|
|
# https://docs.python.org/2/library/subprocess.html
|
|
return False, ('Expected error message, but command was terminated by '
|
|
'signal ' + str(status.returncode))
|
|
if not status.stderr:
|
|
return False, 'Expected error message, but no output on stderr'
|
|
if self.expected_error_substr not in convert_to_unix_line_endings(
|
|
status.stderr):
|
|
return False, ('Incorrect stderr output:\n{act}\n'
|
|
'Expected substring not found in stderr:\n{exp}'.format(
|
|
act=status.stderr, exp=self.expected_error_substr))
|
|
return True, ''
|
|
|
|
|
|
class WarningMessage(SpirvTest):
|
|
"""Mixin class for tests that succeed but have a specific warning message.
|
|
|
|
To mix in this class, subclasses need to provide expected_warning as the
|
|
expected warning message.
|
|
"""
|
|
|
|
def check_has_warning_message(self, status):
|
|
if status.returncode:
|
|
return False, ('Expected warning message, but returned failure from'
|
|
' command execution')
|
|
if not status.stderr:
|
|
return False, 'Expected warning message, but no output on stderr'
|
|
if self.expected_warning != convert_to_unix_line_endings(status.stderr):
|
|
return False, ('Incorrect stderr output:\n{act}\n'
|
|
'Expected:\n{exp}'.format(
|
|
act=status.stderr, exp=self.expected_warning))
|
|
return True, ''
|
|
|
|
|
|
class ValidObjectFileWithWarning(NoOutputOnStdout, CorrectObjectFilePreamble,
|
|
WarningMessage):
|
|
"""Mixin class for checking that every input file generates a valid object
|
|
file following the object file naming rule, with a specific warning message.
|
|
"""
|
|
|
|
def check_object_file_preamble(self, status):
|
|
for input_filename in status.input_filenames:
|
|
object_filename = get_object_filename(input_filename)
|
|
success, message = self.verify_object_file_preamble(
|
|
os.path.join(status.directory, object_filename))
|
|
if not success:
|
|
return False, message
|
|
return True, ''
|
|
|
|
|
|
class ValidAssemblyFileWithWarning(NoOutputOnStdout,
|
|
CorrectAssemblyFilePreamble, WarningMessage):
|
|
"""Mixin class for checking that every input file generates a valid assembly
|
|
file following the assembly file naming rule, with a specific warning
|
|
message."""
|
|
|
|
def check_assembly_file_preamble(self, status):
|
|
for input_filename in status.input_filenames:
|
|
assembly_filename = get_assembly_filename(input_filename)
|
|
success, message = self.verify_assembly_file_preamble(
|
|
os.path.join(status.directory, assembly_filename))
|
|
if not success:
|
|
return False, message
|
|
return True, ''
|
|
|
|
|
|
class StdoutMatch(SpirvTest):
|
|
"""Mixin class for tests that can expect output on stdout.
|
|
|
|
To mix in this class, subclasses need to provide expected_stdout as the
|
|
expected stdout output.
|
|
|
|
For expected_stdout, if it's True, then they expect something on stdout but
|
|
will not check what it is. If it's a string, expect an exact match. If it's
|
|
anything else, it is assumed to be a compiled regular expression which will
|
|
be matched against re.search(). It will expect
|
|
expected_stdout.search(status.stdout) to be true.
|
|
"""
|
|
|
|
def check_stdout_match(self, status):
|
|
# "True" in this case means we expect something on stdout, but we do not
|
|
# care what it is, we want to distinguish this from "blah" which means we
|
|
# expect exactly the string "blah".
|
|
if self.expected_stdout is True:
|
|
if not status.stdout:
|
|
return False, 'Expected something on stdout'
|
|
elif type(self.expected_stdout) == str:
|
|
if self.expected_stdout != convert_to_unix_line_endings(status.stdout):
|
|
return False, ('Incorrect stdout output:\n{ac}\n'
|
|
'Expected:\n{ex}'.format(
|
|
ac=status.stdout, ex=self.expected_stdout))
|
|
else:
|
|
converted = convert_to_unix_line_endings(status.stdout)
|
|
if not self.expected_stdout.search(converted):
|
|
return False, ('Incorrect stdout output:\n{ac}\n'
|
|
'Expected to match regex:\n{ex}'.format(
|
|
ac=status.stdout, ex=self.expected_stdout.pattern))
|
|
return True, ''
|
|
|
|
|
|
class StderrMatch(SpirvTest):
|
|
"""Mixin class for tests that can expect output on stderr.
|
|
|
|
To mix in this class, subclasses need to provide expected_stderr as the
|
|
expected stderr output.
|
|
|
|
For expected_stderr, if it's True, then they expect something on stderr,
|
|
but will not check what it is. If it's a string, expect an exact match.
|
|
If it's anything else, it is assumed to be a compiled regular expression
|
|
which will be matched against re.search(). It will expect
|
|
expected_stderr.search(status.stderr) to be true.
|
|
"""
|
|
|
|
def check_stderr_match(self, status):
|
|
# "True" in this case means we expect something on stderr, but we do not
|
|
# care what it is, we want to distinguish this from "blah" which means we
|
|
# expect exactly the string "blah".
|
|
if self.expected_stderr is True:
|
|
if not status.stderr:
|
|
return False, 'Expected something on stderr'
|
|
elif type(self.expected_stderr) == str:
|
|
if self.expected_stderr != convert_to_unix_line_endings(status.stderr):
|
|
return False, ('Incorrect stderr output:\n{ac}\n'
|
|
'Expected:\n{ex}'.format(
|
|
ac=status.stderr, ex=self.expected_stderr))
|
|
else:
|
|
if not self.expected_stderr.search(
|
|
convert_to_unix_line_endings(status.stderr)):
|
|
return False, ('Incorrect stderr output:\n{ac}\n'
|
|
'Expected to match regex:\n{ex}'.format(
|
|
ac=status.stderr, ex=self.expected_stderr.pattern))
|
|
return True, ''
|
|
|
|
|
|
class StdoutNoWiderThan80Columns(SpirvTest):
|
|
"""Mixin class for tests that require stdout to 80 characters or narrower.
|
|
|
|
To mix in this class, subclasses need to provide expected_stdout as the
|
|
expected stdout output.
|
|
"""
|
|
|
|
def check_stdout_not_too_wide(self, status):
|
|
if not status.stdout:
|
|
return True, ''
|
|
else:
|
|
for line in status.stdout.splitlines():
|
|
if len(line) > 80:
|
|
return False, ('Stdout line longer than 80 columns: %s' % line)
|
|
return True, ''
|
|
|
|
|
|
class NoObjectFile(SpirvTest):
|
|
"""Mixin class for checking that no input file has a corresponding object
|
|
file."""
|
|
|
|
def check_no_object_file(self, status):
|
|
for input_filename in status.input_filenames:
|
|
object_filename = get_object_filename(input_filename)
|
|
full_object_file = os.path.join(status.directory, object_filename)
|
|
print('checking %s' % full_object_file)
|
|
if os.path.isfile(full_object_file):
|
|
return False, (
|
|
'Expected no object file, but found: %s' % full_object_file)
|
|
return True, ''
|
|
|
|
|
|
class NoNamedOutputFiles(SpirvTest):
|
|
"""Mixin class for checking that no specified output files exist.
|
|
|
|
The expected_output_filenames member should be full pathnames."""
|
|
|
|
def check_no_named_output_files(self, status):
|
|
for object_filename in self.expected_output_filenames:
|
|
if os.path.isfile(object_filename):
|
|
return False, (
|
|
'Expected no output file, but found: %s' % object_filename)
|
|
return True, ''
|
|
|
|
|
|
class ExecutedListOfPasses(SpirvTest):
|
|
"""Mixin class for checking that a list of passes where executed.
|
|
|
|
It works by analyzing the output of the --print-all flag to spirv-opt.
|
|
|
|
For this mixin to work, the class member expected_passes should be a sequence
|
|
of pass names as returned by Pass::name().
|
|
"""
|
|
|
|
def check_list_of_executed_passes(self, status):
|
|
# Collect all the output lines containing a pass name.
|
|
pass_names = []
|
|
pass_name_re = re.compile(r'.*IR before pass (?P<pass_name>[\S]+)')
|
|
for line in status.stderr.splitlines():
|
|
match = pass_name_re.match(line)
|
|
if match:
|
|
pass_names.append(match.group('pass_name'))
|
|
|
|
for (expected, actual) in zip(self.expected_passes, pass_names):
|
|
if expected != actual:
|
|
return False, (
|
|
'Expected pass "%s" but found pass "%s"\n' % (expected, actual))
|
|
|
|
return True, ''
|