vscode中配置pytest

在测试用例中使用print的设置方法

在setting.json中输入一下内容：

    "python.testing.pytestArgs": [
        ".",  # 初始值为所有，理论上有了下面的，就不应该有该项目？可以考虑存在和不存在，查看对测试结果的影响
        "--capture=no",  　　# 表示控制台可以print输出
        "-q", 　　# 表示简化输出
　　　　  "-disable-warnings"  　　# 表示不显示警告信息

    ],  
    "python.testing.unittestEnabled": false,
    "python.testing.nosetestsEnabled": false,
    "python.testing.pytestEnabled": true,
    "python.testing.promptToConfigure": false,
    "python.testing.autoTestDiscoverOnSaveEnabled": false,

其中："--capture=no"表示pytest不捕获测试用例中的print，那么在测试用例使用print时，就可以直接在控制台显示出来

介绍几个常用的参数：

-q: 简化结果信息，不会显示每个用例的文件名等；
-s：允许在结果中显示标准输出，比如你在用例中的打印信息，默认在结果中不会显示标准输出；
--capture=no：与 -s 效果一样，主要演示一下带参数值的写法；
-m mark：指定带相应标记的用例。用于演示不带等号的参数写法。

禁用警告信息

--disable-warnings

在python.testing.pytestArgs中添加如上信息，就可以禁用警告信息了。

若是想了解pytest中所有的命令行信息，可以使用：pytest --help，内容如下：

usage: pytest [options] [file_or_dir] [file_or_dir] [...]

positional arguments:
file_or_dir

general:
-k EXPRESSION only run tests which match the given substring
expression. An expression is a python evaluatable
expression where all names are substring-matched against
test names and their parent classes. Example: -k
'test_method or test_other' matches all test functions
and classes whose name contains 'test_method' or
'test_other', while -k 'not test_method' matches those
that don't contain 'test_method' in their names. -k 'not
test_method and not test_other' will eliminate the
matches. Additionally keywords are matched to classes
and functions containing extra names in their
'extra_keyword_matches' set, as well as functions which
have names assigned directly to them.
-m MARKEXPR only run tests matching given mark expression. example:
-m 'mark1 and not mark2'.
--markers show markers (builtin, plugin and per-project ones).
-x, --exitfirst exit instantly on first error or failed test.
--maxfail=num exit after first num failures or errors.
--strict-markers, --strict
markers not registered in the `markers` section of the
configuration file raise errors.
-c file load configuration from `file` instead of trying to
locate one of the implicit configuration files.
--continue-on-collection-errors
Force test execution even if collection errors occur.
--rootdir=ROOTDIR Define root directory for tests. Can be relative path:
'root_dir', './root_dir', 'root_dir/another_dir/';
absolute path: '/home/user/root_dir'; path with
variables: '$HOME/root_dir'.
--fixtures, --funcargs
show available fixtures, sorted by plugin appearance
(fixtures with leading '_' are only shown with '-v')
--fixtures-per-test show fixtures per test
--import-mode={prepend,append}
prepend/append to sys.path when importing test modules,
default is to prepend.
--pdb start the interactive Python debugger on errors or
KeyboardInterrupt.
--pdbcls=modulename:classname
start a custom interactive Python debugger on errors.
For example:
--pdbcls=IPython.terminal.debugger:TerminalPdb
--trace Immediately break when running each test.
--capture=method per-test capturing method: one of fd|sys|no.
-s shortcut for --capture=no.
--runxfail report the results of xfail tests as if they were not
marked
--lf, --last-failed rerun only the tests that failed at the last run (or all
if none failed)
--ff, --failed-first run all tests but run the last failures first. This may
re-order tests and thus lead to repeated fixture
setup/teardown
--nf, --new-first run tests from new files first, then the rest of the
tests sorted by file mtime
--cache-show=[CACHESHOW]
show cache contents, don't perform collection or tests.
Optional argument: glob (default: '*').
--cache-clear remove all cache contents at start of test run.
--lfnf={all,none}, --last-failed-no-failures={all,none}
which tests to run with no previously (known) failures.
--sw, --stepwise exit on test failure and continue from last failing test
next time
--stepwise-skip ignore the first failing test but stop on the next
failing test
--arraydiff Enable comparison of arrays to reference arrays stored
in files
--arraydiff-generate-path=ARRAYDIFF_GENERATE_PATH
directory to generate reference files in, relative to
location where py.test is run
--arraydiff-reference-path=ARRAYDIFF_REFERENCE_PATH
directory containing reference files, relative to
location where py.test is run
--arraydiff-default-format=ARRAYDIFF_DEFAULT_FORMAT
Default format for the reference arrays (can be 'fits'
or 'text' currently)

reporting:
--durations=N show N slowest setup/test durations (N=0 for all).
-v, --verbose increase verbosity.
-q, --quiet decrease verbosity.
--verbosity=VERBOSE set verbosity. Default is 0.
-r chars show extra test summary info as specified by chars:
(f)ailed, (E)rror, (s)kipped, (x)failed, (X)passed,
(p)assed, (P)assed with output, (a)ll except passed
(p/P), or (A)ll. (w)arnings are enabled by default (see
--disable-warnings).
--disable-warnings, --disable-pytest-warnings
disable warnings summary
-l, --showlocals show locals in tracebacks (disabled by default).
--tb=style traceback print mode (auto/long/short/line/native/no).
--show-capture={no,stdout,stderr,log,all}
Controls how captured stdout/stderr/log is shown on
failed tests. Default is 'all'.
--full-trace don't cut any tracebacks (default is to cut).
--color=color color terminal output (yes/no/auto).
--pastebin=mode send failed|all info to bpaste.net pastebin service.
--junit-xml=path create junit-xml style report file at given path.
--junit-prefix=str prepend prefix to classnames in junit-xml output
--result-log=path DEPRECATED path for machine-readable result log.

collection:
--collect-only, --co only collect tests, don't execute them.
--pyargs try to interpret all arguments as python packages.
--ignore=path ignore path during collection (multi-allowed).
--ignore-glob=path ignore path pattern during collection (multi-allowed).
--deselect=nodeid_prefix
deselect item during collection (multi-allowed).
--confcutdir=dir only load conftest.py's relative to specified dir.
--noconftest Don't load any conftest.py files.
--keep-duplicates Keep duplicate tests.
--collect-in-virtualenv
Don't ignore tests in a local virtualenv directory
--doctest-modules run doctests in all .py modules
--doctest-report={none,cdiff,ndiff,udiff,only_first_failure}
choose another output format for diffs on doctest
failure
--doctest-glob=pat doctests file matching pattern, default: test*.txt
--doctest-ignore-import-errors
ignore doctest ImportErrors
--doctest-continue-on-failure
for a given doctest, continue to run after the first
failure

test session debugging and configuration:
--basetemp=dir base temporary directory for this test run.(warning:
this directory is removed if it exists)
--version display pytest lib version and import information.
-h, --help show help message and configuration info
-p name early-load given plugin module name or entry point
(multi-allowed). To avoid loading of plugins, use the
`no:` prefix, e.g. `no:doctest`.
--trace-config trace considerations of conftest.py files.
--debug store internal tracing debug information in
'pytestdebug.log'.
-o OVERRIDE_INI, --override-ini=OVERRIDE_INI
override ini option with "option=value" style, e.g. `-o
xfail_strict=True -o cache_dir=cache`.
--assert=MODE Control assertion debugging tools. 'plain' performs no
assertion debugging. 'rewrite' (the default) rewrites
assert statements in test modules on import to provide
assert expression information.
--setup-only only setup fixtures, do not execute tests.
--setup-show show setup of fixtures while executing tests.
--setup-plan show what fixtures and tests would be executed but don't
execute anything.

pytest-warnings:
-W PYTHONWARNINGS, --pythonwarnings=PYTHONWARNINGS
set which warnings to report, see -W option of python
itself.

logging:
--no-print-logs disable printing caught logs on failed tests.
--log-level=LOG_LEVEL
logging level used by the logging module
--log-format=LOG_FORMAT
log format as used by the logging module.
--log-date-format=LOG_DATE_FORMAT
log date format as used by the logging module.
--log-cli-level=LOG_CLI_LEVEL
cli logging level.
--log-cli-format=LOG_CLI_FORMAT
log format as used by the logging module.
--log-cli-date-format=LOG_CLI_DATE_FORMAT
log date format as used by the logging module.
--log-file=LOG_FILE path to a file when logging will be written to.
--log-file-level=LOG_FILE_LEVEL
log file logging level.
--log-file-format=LOG_FILE_FORMAT
log format as used by the logging module.
--log-file-date-format=LOG_FILE_DATE_FORMAT
log date format as used by the logging module.
--log-auto-indent=LOG_AUTO_INDENT
Auto-indent multiline messages passed to the logging
module. Accepts true|on, false|off or an integer.

Hypothesis:
--hypothesis-profile=HYPOTHESIS_PROFILE
Load in a registered hypothesis.settings profile
--hypothesis-verbosity={quiet,normal,verbose,debug}
Override profile with verbosity setting specified
--hypothesis-show-statistics
Configure when statistics are printed
--hypothesis-seed=HYPOTHESIS_SEED
Set a seed to use for all Hypothesis tests

astropy header options:
--astropy-header Show the pytest-astropy header
--astropy-header-packages=ASTROPY_HEADER_PACKAGES
Comma-separated list of packages to include in the
header

custom options:
--doctest-plus enable running doctests with additional features not
found in the normal doctest plugin
--doctest-rst Enable running doctests in .rst documentation. This is
no longer recommended, use --doctest-glob instead.
--text-file-format=TEXT_FILE_FORMAT
Text file format for narrative documentation. Options
accepted are 'txt', 'tex', and 'rst'. This is no longer
recommended, use --doctest-glob instead.
--doctest-plus-atol=DOCTEST_PLUS_ATOL
set the absolute tolerance for float comparison
--doctest-plus-rtol=DOCTEST_PLUS_RTOL
set the relative tolerance for float comparison
--doctest-only Test only doctests. Implies usage of doctest-plus.
--open-files fail if any test leaves files open
--remote-data=[REMOTE_DATA]
run tests with online data

[pytest] ini-options in the first pytest.ini|tox.ini|setup.cfg file found:

markers (linelist): markers for test functions
empty_parameter_set_mark (string):
default marker for empty parametersets
norecursedirs (args): directory patterns to avoid for recursion
testpaths (args): directories to search for tests when no files or
directories are given in the command line.
usefixtures (args): list of default fixtures to be used with this project
python_files (args): glob-style file patterns for Python test module
discovery
python_classes (args):
prefixes or glob names for Python test class discovery
python_functions (args):
prefixes or glob names for Python test function and
method discovery
disable_test_id_escaping_and_forfeit_all_rights_to_community_support (bool):
disable string escape non-ascii characters, might cause
unwanted side effects(use at your own risk)
console_output_style (string):
console output: "classic", or with additional progress
information ("progress" (percentage) | "count").
xfail_strict (bool): default for the strict parameter of xfail markers when
not given explicitly (default: False)
enable_assertion_pass_hook (bool):
Enables the pytest_assertion_pass hook.Make sure to
delete any previously generated pyc cache files.
junit_suite_name (string):
Test suite name for JUnit report
junit_logging (string):
Write captured log messages to JUnit report: one of
no|system-out|system-err
junit_log_passing_tests (bool):
Capture log information for passing tests to JUnit
report:
junit_duration_report (string):
Duration time to report: one of total|call
junit_family (string):
Emit XML for schema: one of legacy|xunit1|xunit2
doctest_optionflags (args):
option flags for doctests
doctest_encoding (string):
encoding used for doctest files
cache_dir (string): cache directory path.
filterwarnings (linelist):
Each line specifies a pattern for
warnings.filterwarnings. Processed after
-W/--pythonwarnings.
log_print (bool): default value for --no-print-logs
log_level (string): default value for --log-level
log_format (string): default value for --log-format
log_date_format (string):
default value for --log-date-format
log_cli (bool): enable log display during test run (also known as "live
logging").
log_cli_level (string):
default value for --log-cli-level
log_cli_format (string):
default value for --log-cli-format
log_cli_date_format (string):
default value for --log-cli-date-format
log_file (string): default value for --log-file
log_file_level (string):
default value for --log-file-level
log_file_format (string):
default value for --log-file-format
log_file_date_format (string):
default value for --log-file-date-format
log_auto_indent (string):
default value for --log-auto-indent
faulthandler_timeout (string):
Dump the traceback of all threads if a test takes more
than TIMEOUT seconds to finish. Not available on
Windows.
addopts (args): extra command line options
minversion (string): minimally required pytest version
astropy_header (bool):
Show the pytest-astropy header
astropy_header_packages (linelist):
Comma-separated list of packages to include in the
header
text_file_format (string):
Default format for docs. This is no longer recommended,
use --doctest-glob instead.
doctest_optionflags (args):
option flags for doctests
doctest_plus (string):
enable running doctests with additional features not
found in the normal doctest plugin
doctest_norecursedirs (args):
like the norecursedirs option but applies only to
doctest collection
doctest_rst (string): Run the doctests in the rst documentation
doctest_plus_atol (string):
set the absolute tolerance for float comparison
doctest_plus_rtol (string):
set the relative tolerance for float comparison
text_file_comment_chars (linelist):
list of pairs in format file_extension=comment_chars,
eg: .rst=..
open_files_ignore (args):
when used with the --open-files option, allows
specifying names of files that may be ignored when left
open between tests--files in this list are matched may
be specified by their base name (ignoring their full
path) or by absolute path
remote_data_strict (bool):
If 'True', tests will fail if they attempt to access the
internet but are not explicitly marked with
'remote_data'

environment variables:
PYTEST_ADDOPTS extra command line options
PYTEST_PLUGINS comma-separated plugins to load during startup
PYTEST_DISABLE_PLUGIN_AUTOLOAD set to disable plugin auto-loading
PYTEST_DEBUG set to enable debug tracing of pytest's internals

to see available markers type: pytest --markers
to see available fixtures type: pytest --fixtures
(shown according to specified file_or_dir or current dir if not specified; fixtures with leading '_' are only shown with the '-v' option

具体信息还可以参数：https://www.cnblogs.com/nicole-zhang/p/11039714.html