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# Copyright 2015 The Shaderc Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import expect
import os.path
from glslc_test_framework import inside_glslc_testsuite
from placeholder import FileShader, StdinShader, TempFileName
@inside_glslc_testsuite('File')
class SimpleFileCompiled(expect.ValidObjectFile):
"""Tests whether or not a simple glsl file compiles."""
shader = FileShader('#version 310 es\nvoid main() {}', '.frag')
glslc_args = ['-c', shader]
@inside_glslc_testsuite('File')
class NotSpecifyingOutputName(expect.SuccessfulReturn,
expect.CorrectObjectFilePreamble):
"""Tests that when there is no -o and -E/-S/-c specified, output as a.spv."""
shader = FileShader('#version 140\nvoid main() {}', '.frag')
glslc_args = [shader]
def check_output_a_spv(self, status):
output_name = os.path.join(status.directory, 'a.spv')
return self.verify_object_file_preamble(output_name)
@inside_glslc_testsuite('Parameters')
class HelpParameters(
expect.ReturnCodeIsZero, expect.StdoutMatch, expect.StderrMatch):
"""Tests the --help flag outputs correctly and does not produce and error."""
glslc_args = ['--help']
expected_stdout = '''glslc - Compile shaders into SPIR-V
Usage: glslc [options] file...
An input file of - represents standard input.
Options:
-c Only run preprocess, compile, and assemble steps.
-Dmacro[=defn] Add an implicit macro definition.
-E Outputs only the results of the preprocessing step.
Output defaults to standard output.
-fshader-stage=<stage>
Treat subsequent input files as having stage <stage>.
Valid stages are vertex, fragment, tesscontrol, tesseval,
geometry, and compute.
-g Generate source-level debug information.
Currently this option has no effect.
--help Display available options.
--version Display compiler version information.
-I <value> Add directory to include search path.
-o <file> Write output to <file>.
A file name of '-' represents standard output.
-std=<value> Version and profile for input files. Possible values
are concatenations of version and profile, e.g. 310es,
450core, etc.
-mfmt=<format> Output SPIR-V binary code using the selected format. This
option may be specified only when the compilation output is
in SPIR-V binary code form. Available options include bin, c
and num. By default the binary output format is bin.
-M Generate make dependencies. Implies -E and -w.
-MM An alias for -M.
-MD Generate make dependencies and compile.
-MF <file> Write dependency output to the given file.
-MT <target> Specify the target of the rule emitted by dependency
generation.
-S Only run preprocess and compilation steps.
--target-env=<environment>
Set the target shader environment, and the semantics
of warnings and errors. Valid values are 'opengl',
'opengl_compat' and 'vulkan'. The default value is 'vulkan'.
-w Suppresses all warning messages.
-Werror Treat all warnings as errors.
-x <language> Treat subsequent input files as having type <language>.
The only supported language is glsl.
'''
expected_stderr = ''
@inside_glslc_testsuite('Parameters')
class HelpIsNotTooWide(expect.StdoutNoWiderThan80Columns):
"""Tests that --help output is not too wide."""
glslc_args = ['--help']
@inside_glslc_testsuite('Parameters')
class UnknownSingleLetterArgument(expect.ErrorMessage):
"""Tests that an unknown argument triggers an error message."""
glslc_args = ['-a']
expected_error = ["glslc: error: unknown argument: '-a'\n"]
@inside_glslc_testsuite('Parameters')
class UnknownMultiLetterArgument(expect.ErrorMessage):
"""Tests that an unknown argument triggers an error message."""
glslc_args = ['-zzz']
expected_error = ["glslc: error: unknown argument: '-zzz'\n"]
@inside_glslc_testsuite('Parameters')
class UnsupportedOption(expect.ErrorMessage):
"""Tests that an unsupported option triggers an error message."""
glslc_args = ['--unsupported-option']
expected_error = [
"glslc: error: unsupported option: '--unsupported-option'\n"]
@inside_glslc_testsuite('File')
class FileNotFound(expect.ErrorMessage):
"""Tests the error message if a file cannot be found."""
blabla_file = TempFileName('blabla.frag')
glslc_args = [blabla_file]
expected_error = [
"glslc: error: cannot open input file: '", blabla_file,
"': No such file or directory\n"]
@inside_glslc_testsuite('Unsupported')
class LinkingNotSupported(expect.ErrorMessage):
"""Tests the error message generated by linking not supported yet."""
shader1 = FileShader('#version 140\nvoid main() {}', '.vert')
shader2 = FileShader('#version 140\nvoid main() {}', '.frag')
glslc_args = [shader1, shader2]
expected_error = [
'glslc: error: linking multiple files is not supported yet. ',
'Use -c to compile files individually.\n']
@inside_glslc_testsuite('Unsupported')
class MultipleStdinUnsupported(expect.ErrorMessage):
"""Tests the error message generated by having more than one - input."""
glslc_args = ['-c', '-fshader-stage=vertex', '-', '-']
expected_error = [
'glslc: error: specifying standard input "-" as input more'
' than once is not allowed.\n']
@inside_glslc_testsuite('Parameters')
class StdinWithoutShaderStage(expect.StdoutMatch, expect.StderrMatch):
"""Tests that you must use -fshader-stage when specifying - as input."""
shader = StdinShader(
"""#version 140
int a() {
}
void main() {
int x = a();
}
""")
glslc_args = [shader]
expected_stdout = ''
expected_stderr = [
"glslc: error: '-': -fshader-stage required when input is from "
'standard input "-"\n']
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