你的第一个接口测试：Python 接口测试

#!/usr/bin/env python

# -*- coding: utf-8 -*-

# @file       : HTMLTestRunner_Py3.x.py

# @Date    : 2018-06-02 14:14:46

# @Author  : Destroyers (https://github.com/lguobin)

# @Link    : https://github.com/lguobin

# @Version : $1.0$

"""

A TestRunner for use with the Python unit testing framework. It

generates a HTML report to show the result at a glance.

The simplest way to use this is to invoke its main method. E.g.

    import unittest

    import HTMLTestRunner

    ... define your tests ...

    if __name__ == '__main__':

        HTMLTestRunner.main()

For more customization options, instantiates a HTMLTestRunner object.

HTMLTestRunner is a counterpart to unittest's TextTestRunner. E.g.

    # output to a file

    fp = file('my_report.html', 'wb')

    runner = HTMLTestRunner.HTMLTestRunner(

                stream=fp,

                title='My unit test',

                description='This demonstrates the report output by HTMLTestRunner.'

                )

    # Use an external stylesheet.

    # See the Template_mixin class for more customizable options

    runner.STYLESHEET_TMPL = '<link rel="stylesheet" href="my_stylesheet.css" type="text/css">'

    # run the test

    runner.run(my_test_suite)

------------------------------------------------------------------------

Copyright (c) 2004-2007, Wai Yip Tung

All rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are

met:

* Redistributions of source code must retain the above copyright notice,

  this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright

  notice, this list of conditions and the following disclaimer in the

  documentation and/or other materials provided with the distribution.

* Neither the name Wai Yip Tung nor the names of its contributors may be

  used to endorse or promote products derived from this software without

  specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED

TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER

OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

"""

# URL: http://tungwaiyip.info/software/HTMLTestRunner.html

__author__ = "Wai Yip Tung"

__version__ = "0.8.2.1" # lguobin change Python 3.x

"""

Change History

Version 0.8.2

* Show output inline instead of popup window (Viorel Lupu).

Version in 0.8.1

* Validated XHTML (Wolfgang Borgert).

* Added description of test classes and test cases.

Version in 0.8.0

* Define Template_mixin class for customization.

* Workaround a IE 6 bug that it does not treat <script> block as CDATA.

Version in 0.7.1

* Back port to Python 2.3 (Frank Horowitz).

* Fix missing scroll bars in detail log (Podi).

"""

# TODO: color stderr

# TODO: simplify javascript using ,ore than 1 class in the class attribute?

import datetime

import io

import sys

import time

import unittest

from xml.sax import saxutils

# ------------------------------------------------------------------------

# The redirectors below are used to capture output during testing. Output

# sent to sys.stdout and sys.stderr are automatically captured. However

# in some cases sys.stdout is already cached before HTMLTestRunner is

# invoked (e.g. calling logging.basicConfig). In order to capture those

# output, use the redirectors for the cached stream.

#

# e.g.

#   >>> logging.basicConfig(stream=HTMLTestRunner.stdout_redirector)

#   >>>

class OutputRedirector(object):

    """ Wrapper to redirect stdout or stderr """

    def __init__(self, fp):

        self.fp = fp

    def write(self, s):

        self.fp.write(s)

    def writelines(self, lines):

        self.fp.writelines(lines)

    def flush(self):

        self.fp.flush()

stdout_redirector = OutputRedirector(sys.stdout)

stderr_redirector = OutputRedirector(sys.stderr)

# ----------------------------------------------------------------------

# Template

class Template_mixin(object):

    """

    Define a HTML template for report customerization and generation.

    Overall structure of an HTML report

    HTML

    +------------------------+

    |<html>                  |

    |  <head>                |

    |                        |

    |   STYLESHEET           |

    |   +----------------+   |

    |   |                |   |

    |   +----------------+   |

    |                        |

    |  </head>               |

    |                        |

    |  <body>                |

    |                        |

    |   HEADING              |

    |   +----------------+   |

    |   |                |   |

    |   +----------------+   |

    |                        |

    |   REPORT               |

    |   +----------------+   |

    |   |                |   |

    |   +----------------+   |

    |                        |

    |   ENDING               |

    |   +----------------+   |

    |   |                |   |

    |   +----------------+   |

    |                        |

    |  </body>               |

    |</html>                 |

    +------------------------+

    """

    STATUS = {

    0: 'pass',

    1: 'fail',

    2: 'error',

    }

    DEFAULT_TITLE = 'Unit Test Report'

    DEFAULT_DESCRIPTION = ''

    # ------------------------------------------------------------------------

    # HTML Template

    HTML_TMPL = r"""<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <title>%(title)s</title>

    <meta name="generator" content="%(generator)s"/>

    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>

    %(stylesheet)s

</head>

<body>

<script language="javascript" type="text/javascript"><!--

output_list = Array();

/* level - 0:Summary; 1:Failed; 2:All */

function showCase(level) {

    trs = document.getElementsByTagName("tr");

    for (var i = 0; i < trs.length; i++) {

        tr = trs[i];

        id = tr.id;

        if (id.substr(0,2) == 'ft') {

            if (level < 1) {

                tr.className = 'hiddenRow';

            }

            else {

                tr.className = '';

            }

        }

        if (id.substr(0,2) == 'pt') {

            if (level > 1) {

                tr.className = '';

            }

            else {

                tr.className = 'hiddenRow';

            }

        }

    }

}

function showClassDetail(cid, count) {

    var id_list = Array(count);

    var toHide = 1;

    for (var i = 0; i < count; i++) {

        tid0 = 't' + cid.substr(1) + '.' + (i+1);

        tid = 'f' + tid0;

        tr = document.getElementById(tid);

        if (!tr) {

            tid = 'p' + tid0;

            tr = document.getElementById(tid);

        }

        id_list[i] = tid;

        if (tr.className) {

            toHide = 0;

        }

    }

    for (var i = 0; i < count; i++) {

        tid = id_list[i];

        if (toHide) {

            document.getElementById('div_'+tid).style.display = 'none'

            document.getElementById(tid).className = 'hiddenRow';

        }

        else {

            document.getElementById(tid).className = '';

        }

    }

}

function showTestDetail(div_id){

    var details_div = document.getElementById(div_id)

    var displayState = details_div.style.display

    // alert(displayState)

    if (displayState != 'block' ) {

        displayState = 'block'

        details_div.style.display = 'block'

    }

    else {

        details_div.style.display = 'none'

    }

}

function html_escape(s) {

    s = s.replace(/&/g,'&');

    s = s.replace(/</g,'<');

    s = s.replace(/>/g,'>');

    return s;

}

/* obsoleted by detail in <div>

function showOutput(id, name) {

    var w = window.open("", //url

                    name,

                    "resizable,scrollbars,status,width=800,height=450");

    d = w.document;

    d.write("<pre>");

    d.write(html_escape(output_list[id]));

    d.write("\n");

    d.write("<a href='javascript:window.close()'>close</a>\n");

    d.write("</pre>\n");

    d.close();

}

*/

--></script>

%(heading)s

%(report)s

%(ending)s

</body>

</html>

"""

    # variables: (title, generator, stylesheet, heading, report, ending)

    # ------------------------------------------------------------------------

    # Stylesheet

    #

    # alternatively use a <link> for external style sheet, e.g.

    #   <link rel="stylesheet" href="$url" type="text/css">

    STYLESHEET_TMPL = """

<style type="text/css" media="screen">

body        { font-family: verdana, arial, helvetica, sans-serif; font-size: 80%; }

table       { font-size: 100%; }

pre         { }

/* -- heading ---------------------------------------------------------------------- */

h1 {

    font-size: 16pt;

    color: gray;

}

.heading {

    margin-top: 0ex;

    margin-bottom: 1ex;

}

.heading .attribute {

    margin-top: 1ex;

    margin-bottom: 0;

}

.heading .description {

    margin-top: 4ex;

    margin-bottom: 6ex;

}

/* -- css div popup ------------------------------------------------------------------------ */

a.popup_link {

}

a.popup_link:hover {

    color: red;

}

.popup_window {

    display: none;

    position: relative;

    left: 0px;

    top: 0px;

    /*border: solid #627173 1px; */

    padding: 10px;

    background-color: #E6E6D6;

    font-family: "Lucida Console", "Courier New", Courier, monospace;

    text-align: left;

    font-size: 8pt;

    width: 500px;

}

}

/* -- report ------------------------------------------------------------------------ */

#show_detail_line {

    margin-top: 3ex;

    margin-bottom: 1ex;

}

#result_table {

    width: 80%;

    border-collapse: collapse;

    border: 1px solid #777;

}

#header_row {

    font-weight: bold;

    color: white;

    background-color: #777;

}

#result_table td {

    border: 1px solid #777;

    padding: 2px;

}

#total_row  { font-weight: bold; }

.passClass  { background-color: #6c6; }

.failClass  { background-color: #c60; }

.errorClass { background-color: #c00; }

.passCase   { color: #6c6; }

.failCase   { color: #c60; font-weight: bold; }

.errorCase  { color: #c00; font-weight: bold; }

.hiddenRow  { display: none; }

.testcase   { margin-left: 2em; }

/* -- ending ---------------------------------------------------------------------- */

#ending {

}

</style>

"""

    # ------------------------------------------------------------------------

    # Heading

    #

    HEADING_TMPL = """<div class='heading'>

<h1>%(title)s</h1>

%(parameters)s

<p class='description'>%(description)s</p>

</div>

""" # variables: (title, parameters, description)

    HEADING_ATTRIBUTE_TMPL = """<p class='attribute'><strong>%(name)s:</strong> %(value)s</p>

""" # variables: (name, value)

    # ------------------------------------------------------------------------

    # Report

    #

    REPORT_TMPL = """

<p id='show_detail_line'>Show

<a href='javascript:showCase(0)'>Summary</a>

<a href='javascript:showCase(1)'>Failed</a>

<a href='javascript:showCase(2)'>All</a>

</p>

<table id='result_table'>

<colgroup>

<col align='left' />

<col align='right' />

<col align='right' />

<col align='right' />

<col align='right' />

<col align='right' />

</colgroup>

<tr id='header_row'>

    <td>Test Group/Test case</td>

    <td>Count</td>

    <td>Pass</td>

    <td>Fail</td>

    <td>Error</td>

    <td>View</td>

</tr>

%(test_list)s

<tr id='total_row'>

    <td>Total</td>

    <td>%(count)s</td>

    <td>%(Pass)s</td>

    <td>%(fail)s</td>

    <td>%(error)s</td>

    <td> </td>

</tr>

</table>

""" # variables: (test_list, count, Pass, fail, error)

    REPORT_CLASS_TMPL = r"""

<tr class='%(style)s'>

    <td>%(desc)s</td>

    <td>%(count)s</td>

    <td>%(Pass)s</td>

    <td>%(fail)s</td>

    <td>%(error)s</td>

    <td><a href="javascript:showClassDetail('%(cid)s',%(count)s)">Detail</a></td>

</tr>

""" # variables: (style, desc, count, Pass, fail, error, cid)

    REPORT_TEST_WITH_OUTPUT_TMPL = r"""

<tr id='%(tid)s' class='%(Class)s'>

    <td class='%(style)s'><div class='testcase'>%(desc)s</div></td>

    <td colspan='5' align='center'>

    <!--css div popup start-->

    <a class="popup_link" onfocus='this.blur();' href="javascript:showTestDetail('div_%(tid)s')" >

        %(status)s</a>

    <div id='div_%(tid)s' class="popup_window">

        <div style='text-align: right; color:red;cursor:pointer'>

        <a onfocus='this.blur();' onclick="document.getElementById('div_%(tid)s').style.display = 'none' " >

           [x]</a>

        </div>

        <pre>

        %(script)s

        </pre>

    </div>

    <!--css div popup end-->

    </td>

</tr>

""" # variables: (tid, Class, style, desc, status)

    REPORT_TEST_NO_OUTPUT_TMPL = r"""

<tr id='%(tid)s' class='%(Class)s'>

    <td class='%(style)s'><div class='testcase'>%(desc)s</div></td>

    <td colspan='5' align='center'>%(status)s</td>

</tr>

""" # variables: (tid, Class, style, desc, status)

    REPORT_TEST_OUTPUT_TMPL = r"""

%(id)s: %(output)s

""" # variables: (id, output)

    # ------------------------------------------------------------------------

    # ENDING

    #

    ENDING_TMPL = """<div id='ending'> </div>"""

# -------------------- The end of the Template class -------------------

TestResult = unittest.TestResult

class _TestResult(TestResult):

    # note: _TestResult is a pure representation of results.

    # It lacks the output and reporting ability compares to unittest._TextTestResult.

    def __init__(self, verbosity=1):

        TestResult.__init__(self)

        self.stdout0 = None

        self.stderr0 = None

        self.success_count = 0

        self.failure_count = 0

        self.error_count = 0

        self.verbosity = verbosity

        # result is a list of result in 4 tuple

        # (

        #   result code (0: success; 1: fail; 2: error),

        #   TestCase object,

        #   Test output (byte string),

        #   stack trace,

        # )

        self.result = []

    def startTest(self, test):

        TestResult.startTest(self, test)

        # just one buffer for both stdout and stderr

        self.outputBuffer = io.StringIO()

        stdout_redirector.fp = self.outputBuffer

        stderr_redirector.fp = self.outputBuffer

        self.stdout0 = sys.stdout

        self.stderr0 = sys.stderr

        sys.stdout = stdout_redirector

        sys.stderr = stderr_redirector

    def complete_output(self):

        """

        Disconnect output redirection and return buffer.

        Safe to call multiple times.

        """

        if self.stdout0:

            sys.stdout = self.stdout0

            sys.stderr = self.stderr0

            self.stdout0 = None

            self.stderr0 = None

        return self.outputBuffer.getvalue()

    def stopTest(self, test):

        # Usually one of addSuccess, addError or addFailure would have been called.

        # But there are some path in unittest that would bypass this.

        # We must disconnect stdout in stopTest(), which is guaranteed to be called.

        self.complete_output()

    def addSuccess(self, test):

        self.success_count += 1

        TestResult.addSuccess(self, test)

        output = self.complete_output()

        self.result.append((0, test, output, ''))

        if self.verbosity > 1:

            sys.stderr.write('ok ')

            sys.stderr.write(str(test))

            sys.stderr.write('\n')

        else:

            sys.stderr.write('.')

    def addError(self, test, err):

        self.error_count += 1

        TestResult.addError(self, test, err)

        _, _exc_str = self.errors[-1]

        output = self.complete_output()

        self.result.append((2, test, output, _exc_str))

        if self.verbosity > 1:

            sys.stderr.write('E  ')

            sys.stderr.write(str(test))

            sys.stderr.write('\n')

        else:

            sys.stderr.write('E')

    def addFailure(self, test, err):

        self.failure_count += 1

        TestResult.addFailure(self, test, err)

        _, _exc_str = self.failures[-1]

        output = self.complete_output()

        self.result.append((1, test, output, _exc_str))

        if self.verbosity > 1:

            sys.stderr.write('F  ')

            sys.stderr.write(str(test))

            sys.stderr.write('\n')

        else:

            sys.stderr.write('F')

class HTMLTestRunner(Template_mixin):

    """

    """

    def __init__(self, stream=sys.stdout, verbosity=1, title=None, description=None):

        self.stream = stream

        self.verbosity = verbosity

        if title is None:

            self.title = self.DEFAULT_TITLE

        else:

            self.title = title

        if description is None:

            self.description = self.DEFAULT_DESCRIPTION

        else:

            self.description = description

        self.startTime = datetime.datetime.now()

    def run(self, test):

        "Run the given test case or test suite."

        result = _TestResult(self.verbosity)

        test(result)

        self.stopTime = datetime.datetime.now()

        self.generateReport(test, result)

        # print >> sys.stderr, '\nTime Elapsed: %s' % (self.stopTime-self.startTime)

        print(sys.stderr, '\nTime Elapsed: %s' % (self.stopTime-self.startTime))

        return result

    def sortResult(self, result_list):

        # unittest does not seems to run in any particular order.

        # Here at least we want to group them together by class.

        rmap = {}

        classes = []

        for n,t,o,e in result_list:

            cls = t.__class__

            if not cls in rmap:

                rmap[cls] = []

                classes.append(cls)

            rmap[cls].append((n,t,o,e))

        r = [(cls, rmap[cls]) for cls in classes]

        return r

    def getReportAttributes(self, result):

        """

        Return report attributes as a list of (name, value).

        Override this to add custom attributes.

        """

        startTime = str(self.startTime)[:19]

        duration = str(self.stopTime - self.startTime)

        status = []

        if result.success_count: status.append('Pass %s'    % result.success_count)

        if result.failure_count: status.append('Failure %s' % result.failure_count)

        if result.error_count:   status.append('Error %s'   % result.error_count  )

        if status:

            status = ' '.join(status)

        else:

            status = 'none'

        return [

            ('Start Time', startTime),

            ('Duration', duration),

            ('Status', status),

        ]

    def generateReport(self, test, result):

        report_attrs = self.getReportAttributes(result)

        generator = 'HTMLTestRunner %s' % __version__

        stylesheet = self._generate_stylesheet()

        heading = self._generate_heading(report_attrs)

        report = self._generate_report(result)

        ending = self._generate_ending()

        output = self.HTML_TMPL % dict(

            title = saxutils.escape(self.title),

            generator = generator,

            stylesheet = stylesheet,

            heading = heading,

            report = report,

            ending = ending,

        )

        self.stream.write(output.encode('utf8'))

    def _generate_stylesheet(self):

        return self.STYLESHEET_TMPL

    def _generate_heading(self, report_attrs):

        a_lines = []

        for name, value in report_attrs:

            line = self.HEADING_ATTRIBUTE_TMPL % dict(

                    name = saxutils.escape(name),

                    value = saxutils.escape(value),

                )

            a_lines.append(line)

        heading = self.HEADING_TMPL % dict(

            title = saxutils.escape(self.title),

            parameters = ''.join(a_lines),

            description = saxutils.escape(self.description),

        )

        return heading

    def _generate_report(self, result):

        rows = []

        sortedResult = self.sortResult(result.result)

        for cid, (cls, cls_results) in enumerate(sortedResult):

            # subtotal for a class

            np = nf = ne = 0

            for n,t,o,e in cls_results:

                if n == 0: np += 1

                elif n == 1: nf += 1

                else: ne += 1

            # format class description

            if cls.__module__ == "__main__":

                name = cls.__name__

            else:

                name = "%s.%s" % (cls.__module__, cls.__name__)

            doc = cls.__doc__ and cls.__doc__.split("\n")[0] or ""

            desc = doc and '%s: %s' % (name, doc) or name

            row = self.REPORT_CLASS_TMPL % dict(

                style = ne > 0 and 'errorClass' or nf > 0 and 'failClass' or 'passClass',

                desc = desc,

                count = np+nf+ne,

                Pass = np,

                fail = nf,

                error = ne,

                cid = 'c%s' % (cid+1),

            )

            rows.append(row)

            for tid, (n,t,o,e) in enumerate(cls_results):

                self._generate_report_test(rows, cid, tid, n, t, o, e)

        report = self.REPORT_TMPL % dict(

            test_list = ''.join(rows),

            count = str(result.success_count+result.failure_count+result.error_count),

            Pass = str(result.success_count),

            fail = str(result.failure_count),

            error = str(result.error_count),

        )

        return report

    def _generate_report_test(self, rows, cid, tid, n, t, o, e):

        # e.g. 'pt1.1', 'ft1.1', etc

        has_output = bool(o or e)

        tid = (n == 0 and 'p' or 'f') + 't%s.%s' % (cid+1,tid+1)

        name = t.id().split('.')[-1]

        doc = t.shortDescription() or ""

        desc = doc and ('%s: %s' % (name, doc)) or name

        tmpl = has_output and self.REPORT_TEST_WITH_OUTPUT_TMPL or self.REPORT_TEST_NO_OUTPUT_TMPL

        # o and e should be byte string because they are collected from stdout and stderr?

        if isinstance(o,str):

            # TODO: some problem with 'string_escape': it escape \n and mess up formating

            # uo = unicode(o.encode('string_escape'))

            # uo = o.decode('latin-1')

            uo = e

        else:

            uo = o

        if isinstance(e,str):

            # TODO: some problem with 'string_escape': it escape \n and mess up formating

            # ue = unicode(e.encode('string_escape'))

            # ue = e.decode('latin-1')

            ue = e

        else:

            ue = e

        script = self.REPORT_TEST_OUTPUT_TMPL % dict(

            id = tid,

            output = saxutils.escape(str(uo)+ue),

        )

        row = tmpl % dict(

            tid = tid,

            Class = (n == 0 and 'hiddenRow' or 'none'),

            style = n == 2 and 'errorCase' or (n == 1 and 'failCase' or 'none'),

            desc = desc,

            script = script,

            status = self.STATUS[n],

        )

        rows.append(row)

        if not has_output:

            return

    def _generate_ending(self):

        return self.ENDING_TMPL

##############################################################################

# Facilities for running tests from the command line

##############################################################################

# Note: Reuse unittest.TestProgram to launch test. In the future we may

# build our own launcher to support more specific command line

# parameters like test title, CSS, etc.

class TestProgram(unittest.TestProgram):

    """

    A variation of the unittest.TestProgram. Please refer to the base

    class for command line parameters.

    """

    def runTests(self):

        # Pick HTMLTestRunner as the default test runner.

        # base class's testRunner parameter is not useful because it means

        # we have to instantiate HTMLTestRunner before we know self.verbosity.

        if self.testRunner is None:

            self.testRunner = HTMLTestRunner(verbosity=self.verbosity)

        unittest.TestProgram.runTests(self)

main = TestProgram

##############################################################################

# Executing this module from the command line

##############################################################################

if __name__ == "__main__":

    main(module=None)