[alsa-devel] [PATCH 2/2] hda-emu: Initial draft of test framework implementation

[David Henningsson]

So - this is mostly to satisfy your curiousity, to show how far I am 
with the framework. I don't know how much more it offers compared to the 
diff scripts you run at your side, so it's up to you whether you 
actually want to commit this now, or whether you want to wait for me to 
develop more tests (jack plug/unplug, set controls and such).


On 08/08/2012 11:54 AM, David Henningsson wrote:
> Still work in progress, but it is starting to prove useful.
>
> Signed-off-by: David Henningsson <david.henningsson at canonical.com>
> ---
>   tester/hda-emu-tester.py |   61 ++++++++++++++++++++++++++
>   tester/runall.sh         |    3 ++
>   tester/runner.py         |  109 ++++++++++++++++++++++++++++++++++++++++++++++
>   3 files changed, 173 insertions(+)
>   create mode 100755 tester/hda-emu-tester.py
>   create mode 100755 tester/runall.sh
>   create mode 100644 tester/runner.py
>
> diff --git a/tester/hda-emu-tester.py b/tester/hda-emu-tester.py
> new file mode 100755
> index 0000000..a931651
> --- /dev/null
> +++ b/tester/hda-emu-tester.py
> @@ -0,0 +1,61 @@
> +#!/usr/bin/env python
> +
> +# hda-emu-tester - a test framework around hda-emu
> +#
> +# Written by David Henningsson <david.henningsson at canonical.com>
> +#
> +#    Copyright 2012 Canonical Ltd.
> +#
> +#    This program is free software: you can redistribute it and/or modify it
> +#    under the terms of the GNU General Public License version 3, as published
> +#    by the Free Software Foundation.
> +#
> +#    This program is distributed in the hope that it will be useful, but
> +#    WITHOUT ANY WARRANTY; without even the implied warranties of
> +#    MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
> +#    PURPOSE.  See the GNU General Public License for more details.
> +#
> +#    You should have received a copy of the GNU General Public License along
> +#    with this program.  If not, see <http://www.gnu.org/licenses/>.
> +
> +def handle_argv():
> +    import argparse
> +    parser = argparse.ArgumentParser(description='Hda-emu automated test wrapper.')
> +    parser.add_argument('--file', dest='file', required=True, help='alsa-info filename')
> +    return parser.parse_args()
> +
> +def run_test(argv):
> +    import runner
> +    result = runner.HdaEmuRunner()
> +    result.set_alsa_info_file(argv.file)
> +    result.run_standard()
> +    return result
> +
> +def get_exit_code(result):
> +    if result.errors > 9:
> +        return 29
> +    if result.errors > 0:
> +        return 20 + result.errors
> +    if result.warnings > 9:
> +        return 19
> +    if result.warnings > 0:
> +        return 10 + result.warnings
> +    return 0
> +
> +def main():
> +    import sys
> +    try:
> +        argv_dict = handle_argv()
> +        result = run_test(argv_dict)
> +        exitcode = get_exit_code(result)
> +        if result.errors > 0 or result.warnings > 0:
> +            print '{0} errors, {1} warnings. ({2})'.format(result.errors, result.warnings, argv_dict.file)
> +    except:
> +        import traceback
> +        traceback.print_exc()
> +        sys.exit(99)
> +
> +    sys.exit(exitcode)
> +
> +if __name__ == "__main__":
> +    main()
> diff --git a/tester/runall.sh b/tester/runall.sh
> new file mode 100755
> index 0000000..d078f35
> --- /dev/null
> +++ b/tester/runall.sh
> @@ -0,0 +1,3 @@
> +#!/bin/sh
> +find ../codecs/canonical/ -type f | sort | xargs -n1 ./hda-emu-tester.py --file
> +
> diff --git a/tester/runner.py b/tester/runner.py
> new file mode 100644
> index 0000000..28953be
> --- /dev/null
> +++ b/tester/runner.py
> @@ -0,0 +1,109 @@
> +# hda-emu-tester - a test framework around hda-emu
> +#
> +# Written by David Henningsson <david.henningsson at canonical.com>
> +#
> +#    Copyright 2012 Canonical Ltd.
> +#
> +#    This program is free software: you can redistribute it and/or modify it
> +#    under the terms of the GNU General Public License version 3, as published
> +#    by the Free Software Foundation.
> +#
> +#    This program is distributed in the hope that it will be useful, but
> +#    WITHOUT ANY WARRANTY; without even the implied warranties of
> +#    MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
> +#    PURPOSE.  See the GNU General Public License for more details.
> +#
> +#    You should have received a copy of the GNU General Public License along
> +#    with this program.  If not, see <http://www.gnu.org/licenses/>.
> +
> +import subprocess
> +import os
> +
> +class HdaEmuRunner():
> +
> +    def __init__(self):
> +        self.child_args = "../hda-emu -M -F"
> +        self.alsa_info = "/proc/asound/card0/codec#0"
> +        self.errors = 0
> +        self.warnings = 0
> +
> +    def set_alsa_info_file(self, filename):
> +        self.alsa_info = filename
> +
> +    def start_process(self):
> +        import shlex
> +        from subprocess import PIPE, STDOUT
> +
> +        args = shlex.split(self.child_args)
> +        args.append(self.alsa_info)
> +        self.child = subprocess.Popen(args, bufsize=0, stdin=PIPE, stdout=PIPE, stderr=PIPE)
> +
> +    def stop_process(self):
> +        if self.child is None:
> +            return
> +        self.child.terminate()
> +        self.child.wait()
> +        self.child = None
> +
> +
> +    def check_stdout(self):
> +        s = os.read(self.child.stdout.fileno(), 65536)
> +        # print "Stdout received (", len(s), ")"
> +        if s == "":
> +            print "Unexpected EOF of stdout (hda-emu crashed?)"
> +            self.errors += 1
> +            return
> +        self.stdout_total += s
> +
> +        q, _, self.stdout_total = self.stdout_total.rpartition('\n')
> +        for s in q.splitlines():
> +            if s.startswith("Error:"):
> +                self.errors += 1
> +                # print s
> +            if s.startswith("Warning:"):
> +                self.warnings += 1
> +                # print s
> +
> +    def check_stderr(self):
> +        s = os.read(self.child.stderr.fileno(), 65536)
> +        # print "Stderr received (", len(s), ")"
> +        if s == "":
> +            print "Unexpected EOF of stderr (hda-emu crashed?)"
> +            self.errors += 1
> +            return False
> +        if s == "> ":
> +            return True
> +        print "Unexpected stderr output: '" + prompt + "'"
> +        self.errors += 1
> +        return False
> +
> +    def run_command(self, command=None):
> +        if command:
> +            self.child.stdin.write(command + '\n')
> +            self.child.stdin.flush()
> +
> +        import select
> +        self.stdout_total = ""
> +        pipelist = [self.child.stdout, self.child.stderr]
> +        while True:
> +            readable, _, broken = select.select(pipelist, [], pipelist, 3)
> +            for q in broken:
> +                print "Broken pipe (hda-emu crashed?)"
> +                self.errors += 1
> +                return
> +            if readable == []:
> +                print "Timeout waiting for hda-emu"
> +                self.errors += 1
> +                return
> +            if self.child.stdout in readable:
> +                self.check_stdout()
> +            if self.child.stderr in readable:
> +                if self.check_stderr():
> +                    return
> +
> +    def run_standard(self):
> +        self.start_process()
> +        self.run_command() # Initial parsing
> +        self.run_command("pm") # S3 test
> +        self.stop_process()
> +
>



-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic