标签：__ count HTML HTMLTestRunner unittest 7.1 result test self
第 7 章 unittest 扩展
在第 6 章中，我们介绍了 unittest 的主要功能，但是如果只用它来写 Web 自动化测试，则仍稍显不足。例如，它不能生成 HTML 格式的报告、它不能提供参数化功能等。不过，我们可以借助第三方扩展来弥补这些不足。
7.1 HTML 测试报告
HTMLTestRunner 是 unittest 的一个扩展，它可以生成易于使用的 HTML 测试报告。HTMLTestRunner 是在 BSD 许可证下发布的。
下载地址：http://tungwaiyip.info/software/HTMLTestRunner.html
因为该扩展不支持 Python 3，所以做了一些修改，使它可以在 Python 3.7 下运行。
GitHub 地址：https://github.com/defnngj/HTMLTestRunner
7.1.1 下载与安装
HTMLTestRunner 的使用非常简单，它是一个独立的 HTMLTestRunner.py 文件，既可以把它当作 Python 的第三方库来使用。
首先打开上面的 GitHub 地址，克隆或下载整个项目。然后把 HTMLTestRunner.py 单独放到 Python 的安装目录下面，如 C:\Python37\Lib\
如果把 HTMLTestRunner 当作项目的一部分来使用，就把它放到项目目录中。笔者推荐这种方式，因为可以方便地定制生成的 HTMLTestRunner 报告。
其中，test_report/用于存放测试报告，稍后将会用到。
7.1.2 生成 HTML 测试报告
如果想用 HTMLTestRunner 生成测试报告，那么请查看本书 6.1.4 节 run_tests.py 文件的实现。测试用例的执行是通过 TextTestRunner 类提供的 run()方法完成的。这里需要把 HTMLTestRunner.py 文件中的 HTMLTestRunner 类替换 TextTestRunner 类。
打开 HTMLTestRunner.py 文件，在第 877 行（如果代码更新，则行号会发生变化）可以找到 HTMLTestRunner 类。
使用Sublime打开.py文件，查找关键字“HTMLTestRunner”。
HTMLTestRunner
"""
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 , bugmaster"
__version__ = "0.8.2"
"""
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"/>
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css">
<script src="http://cdn.bootcss.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="http://apps.bdimg.com/libs/Chart.js/0.2.0/Chart.min.js"></script>
<!-- <link href="https://cdn.bootcss.com/echarts/3.8.5/echarts.common.min.js" rel="stylesheet"> -->
%(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
%(chart_script)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;
margin-left: 10px;
}
.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; */
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;
margin-left: 10px;
}
#result_table {
width: 80%;
border-collapse: collapse;
border: 1px solid #777;
margin-left: 10px;
}
#header_row {
font-weight: bold;
color: #606060;
background-color: #f5f5f5;
border-top-width: 10px;
border-color: #d6e9c6;
font-size: 12px;
}
#result_table td {
border: 1px solid #f5f5f5;
padding: 2px;
}
#total_row { font-weight: bold; }
.passClass { background-color: #d6e9c6; }
.failClass { background-color: #faebcc; }
.errorClass { background-color: #ebccd1; }
.passCase { color: #6c6; }
.failCase { color: #c60; font-weight: bold; }
.errorCase { color: #c00; font-weight: bold; }
.hiddenRow { display: none; }
.testcase { margin-left: 2em; }
/* -- ending ---------------------------------------------------------------------- */
#ending {
}
/* -- chars ---------------------------------------------------------------------- */
.testChars {margin-left: 150px;}
.btn-info1 {
color: #fff;
background-color: #d6e9c6;
border-color: #d6e9c6;
}
.btn-info2 {
color: #fff;
background-color: #faebcc;
border-color: #faebcc;
}
.btn-info3 {
color: #fff;
background-color: #ebccd1;
border-color: #ebccd1;
}
</style>
"""
# ------------------------------------------------------------------------
# Heading
#
HEADING_TMPL = """<div class='heading'>
<h1>%(title)s</h1>
%(parameters)s
<p class='description'>%(description)s</p>
</div>
<div style="float:left; margin-left: 10px;">
<p> Test Case Pie charts </p>
<a class="btn btn-xs btn-info1">-Pass-</a><br>
<a class="btn btn-xs btn-info2">-Faild-</a><br>
<a class="btn btn-xs btn-info3">-Error-</a><br>
</div>
<div class="testChars">
<canvas id="myChart" width="250" height="250"></canvas>
</div>
""" # variables: (title, parameters, description)
# ------------------------------------------------------------------------
# Pie chart
#
ECHARTS_SCRIPT = """
<script type="text/javascript">
var data = [
{
value: %(error)s,
color: "#ebccd1",
label: "Error",
labelColor: 'white',
labelFontSize: '16'
},
{
value : %(fail)s,
color : "#faebcc",
label: "Fail",
labelColor: 'white',
labelFontSize: '16'
},
{
value : %(Pass)s,
color : "#d6e9c6",
label : "Pass",
labelColor: 'white',
labelFontSize: '16'
}
]
var newopts = {
animationSteps: 100,
animationEasing: 'easeInOutQuart',
}
//Get the context of the canvas element we want to select
var ctx = document.getElementById("myChart").getContext("2d");
var myNewChart = new Chart(ctx).Pie(data,newopts);
</script>
"""
HEADING_ATTRIBUTE_TMPL = """<p class='attribute'><strong>%(name)s:</strong> %(value)s</p>
""" # variables: (name, value)
# ------------------------------------------------------------------------
# Report
#
REPORT_TMPL = """
<p id='show_detail_line' style="margin-left: 10px;">Show
<a href='javascript:showCase(0)' class="btn btn-xs btn-primary">Summary</a>
<a href='javascript:showCase(1)' class="btn btn-xs btn-danger">Failed</a>
<a href='javascript:showCase(2)' class="btn btn-xs btn-info">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' class="panel-title">
<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 class="text text-success">%(Pass)s</td>
<td class="text text-danger">%(fail)s</td>
<td class="text text-warning">%(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('.'+str(self.success_count))
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))
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()
chart = self._generate_chart(result)
output = self.HTML_TMPL % dict(
title = saxutils.escape(self.title),
generator = generator,
stylesheet = stylesheet,
heading = heading,
report = report,
ending = ending,
chart_script = chart,
)
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_chart(self, result):
chart = self.ECHARTS_SCRIPT % dict(
Pass=str(result.success_count),
fail=str(result.failure_count),
error=str(result.error_count),
)
return chart
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
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
else:
ue = e
script = self.REPORT_TEST_OUTPUT_TMPL % dict(
id = tid,
output = saxutils.escape(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)
View Code
这段代码是 HTMLTestRunner 类的部分实现，主要看__init__()初始化方法的参数。
● stream：指定生成 HTML 测试报告的文件，必填。
● verbosity：指定日志的级别，默认为 1。如果想得到更详细的日志，则可以将参数修改为 2。
● title：指定测试用例的标题，默认为 None。
● description：指定测试用例的描述，默认为 None。
在 HTMLTestRunner 类中，同样由 run()方法来运行测试套件中的测试用例。修改 run_tests.py 文件如下。
import unittest
from HTMLTestRunner import HTMLTestRunner
if __name__ == '__main__':
# 定义测试用例的目录为当前目录
test_dir = './test_case'
suit = unittest.defaultTestLoader.discover(test_dir, pattern='test*.py')
fp = open('./test_report/result.html', 'wb')
# 调用HTMLTestRunner，运行测试用例
runner = HTMLTestRunner(stream=fp,
title="百度搜索测试报告",
description="运行环境：Windows 10, Chrome浏览器"
)
runner.run(suit)
fp.close()
View Code
首先，使用 open()方法打开 result.html 文件，用于写入测试结果。如果没有 result.html 文件，则会自动创建该文件，并将该文件对象传给 HTMLTestRunner 类的初始化参数 stream。然后，调用 HTMLTestRunner 类中的 run()方法来运行测试套件。最后，关闭 result.html 文件。
打开/test_report/result.html 文件，将会得到一张 HTML 格式的报告。HTMLTestRunner 测试报告如图。
7.1.3 更易读的测试报告
现在生成的测试报告并不易读，因为它仅显示测试类名和测试方法名。如果随意命名为「test_case1」「test_case2」等，那么将很难明白这些测试用例所测试的功能。
在编写功能测试用例时，每条测试用例都有标题或说明，那么能否为自动化测试用例加上中文的标题或说明呢？答案是肯定的。在此之前，我们先来补充一个知识点：Python 的注释。
Python 的注释有两种，一种叫作 comment，另一种叫作 doc string。前者为普通注释，后者用于描述函数、类和方法。
在类或方法的下方，可以通过三引号（「」「 」「」或『』『』『』）添加 doc string 类型的注释。这类注释在平时调用时不会显示，只有通过 help（）方法查看时才会被显示出来。
因为 HTMLTestRunner 可以读取 doc string 类型的注释，所以，我们只需给测试类或方法添加这种类型的注释即可。
再次运行测试用例，查看测试报告，加了注释的测试报告如图 7-2 所示。
标签：__,count,HTML,HTMLTestRunner,unittest,7.1,result,test,self 来源： https://www.cnblogs.com/MarlonKang/p/12448059.html
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