首页 > 技术文章 > HTMLTestRunner源码

mxq-213 2021-07-19 15:33 原文

-- coding: utf-8 --

"""
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 = ''
# 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

from time import sleep

author = "Wai Yip Tung"
version = "0.8.3"

"""
Change History
Version 0.8.4 by GoverSky

  • Add sopport for 3.x
  • Add piechart for resultpiechart
  • Add Screenshot for selenium_case test
  • Add Retry on failed
    Version 0.8.3
  • Prevent crash on class or module-level exceptions (Darren Wurf).
    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
    %(heading)s

    %(report)s %(ending)s """ # 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 = """
    

    """

    # ------------------------------------------------------------------------
    # Heading
    #
    
    HEADING_TMPL = """<div class='heading'>
    

    %(title)s

    %(parameters)s

    %(description)s

    """ # variables: (title, parameters, description)
    HEADING_ATTRIBUTE_TMPL = """<p class='attribute'><strong>%(name)s:</strong> %(value)s</p>
    

    """ # variables: (name, value)

    # ------------------------------------------------------------------------
    # Report
    #
    
    REPORT_TMPL = """
    
    %(test_list)s
    测试组/测试用例 总数 通过 失败 错误 视图 错误截图
    统计 %(count)s %(Pass)s %(fail)s %(error)s    
    """ # variables: (test_list, count, Pass, fail, error)
    REPORT_CLASS_TMPL = r"""
    
    %(desc)s %(count)s %(Pass)s %(fail)s %(error)s 详情   """ # variables: (style, desc, count, Pass, fail, error, cid)
    REPORT_TEST_WITH_OUTPUT_TMPL = r"""
    
    %(desc)s
    %(status)s %(img)s """ # variables: (tid, Class, style, desc, status,img)
    REPORT_TEST_NO_OUTPUT_TMPL = r"""
    
    %(desc)s
    %(status)s %(img)s """ # variables: (tid, Class, style, desc, status,img)
    REPORT_TEST_OUTPUT_TMPL = r"""
    

    %(id)s: %(output)s
    """ # variables: (id, output)

    IMG_TMPL = r"""
        <a  onfocus='this.blur();' href="javacript:void(0);" onclick="show_img(this)">显示截图</a>
    <div align="center" class="screenshots"  style="display:none">
        <a class="close_shots"  onclick="hide_img(this)"></a>
        %(imgs)s
        <div class="imgyuan"></div>
    </div>
    """
    # ------------------------------------------------------------------------
    # ENDING
    #
    
    ENDING_TMPL = """<div id='ending'>&nbsp;</div>"""
    
    # -------------------- The end of the Template class -------------------
    
    def __getattribute__(self, item):
        value = object.__getattribute__(self, item)
        if PY3K:
            return value
        else:
            if isinstance(value, str):
                return value.decode("utf-8")
            else:
                return value
    

    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, retry=0,save_last_try=False):
        TestResult.__init__(self)
    
        self.stdout0 = None
        self.stderr0 = None
        self.success_count = 0
        self.failure_count = 0
        self.error_count = 0
        self.skip_count = 0
        self.verbosity = verbosity
    
        # result is a list of result in 4 tuple
        # (
        #   result code (0: success; 1: fail; 2: error;3:skip),
        #   TestCase object,
        #   Test output (byte string),
        #   stack trace,
        # )
        self.result = []
        self.retry = retry
        self.trys = 0
        self.status = 0
    
        self.save_last_try = save_last_try
        self.outputBuffer = StringIO.StringIO()
    
    def startTest(self, test):
        # test.imgs = []
        test.imgs = getattr(test, "imgs", [])
        # TestResult.startTest(self, test)
        self.outputBuffer.seek(0)
        self.outputBuffer.truncate()
        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.
        if self.retry and self.retry>=1:
            if self.status == 1:
                self.trys += 1
                if self.trys <= self.retry:
                    if self.save_last_try:
                        t = self.result.pop(-1)
                        if t[0]==1:
                            self.failure_count -=1
                        else:
                            self.error_count -= 1
                    test=copy.copy(test)
                    sys.stderr.write("Retesting... ")
                    sys.stderr.write(str(test))
                    sys.stderr.write('..%d \n' % self.trys)
                    doc = getattr(test,'_testMethodDoc',u"") or u''
                    if doc.find('_retry')!=-1:
                        doc = doc[:doc.find('_retry')]
                    desc ="%s_retry:%d" %(doc, self.trys)
                    if not PY3K:
                        if isinstance(desc, str):
                            desc = desc.decode("utf-8")
                    test._testMethodDoc = desc
                    test(self)
                else:
                    self.status = 0
                    self.trys = 0
        self.complete_output()
    
    def addSuccess(self, test):
        self.success_count += 1
        self.status = 0
        TestResult.addSuccess(self, test)
        output = self.complete_output()
        self.result.append((0, test, output, ''))
        if self.verbosity > 1:
            sys.stderr.write('P  ')
            sys.stderr.write(str(test))
            sys.stderr.write('\n')
        else:
            sys.stderr.write('P')
    
    def addFailure(self, test, err):
        self.failure_count += 1
        self.status = 1
        TestResult.addFailure(self, test, err)
        _, _exc_str = self.failures[-1]
        output = self.complete_output()
        self.result.append((1, test, output, _exc_str))
        if not getattr(test, "driver",""):
            pass
        else:
            try:
                driver = getattr(test, "driver")
                sleep(1)
                test.imgs.append(driver.get_screenshot_as_base64())
            except Exception as e:
                pass
        if self.verbosity > 1:
            sys.stderr.write('F  ')
            sys.stderr.write(str(test))
            sys.stderr.write('\n')
        else:
            sys.stderr.write('F')
    
    def addError(self, test, err):
        self.error_count += 1
        self.status = 1
        TestResult.addError(self, test, err)
        _, _exc_str = self.errors[-1]
        output = self.complete_output()
        self.result.append((2, test, output, _exc_str))
        if not getattr(test, "driver",""):
            pass
        else:
            try:
                driver = getattr(test, "driver")
                sleep(1)
                test.imgs.append(driver.get_screenshot_as_base64())
            except Exception:
                pass
        if self.verbosity > 1:
            sys.stderr.write('E  ')
            sys.stderr.write(str(test))
            sys.stderr.write('\n')
        else:
            sys.stderr.write('E')
    
    def addSkip(self, test, reason):
        self.skip_count += 1
        self.status = 0
        TestResult.addSkip(self, test,reason)
        output = self.complete_output()
        self.result.append((3, test, output, reason))
        if self.verbosity > 1:
            sys.stderr.write('K')
            sys.stderr.write(str(test))
            sys.stderr.write('\n')
        else:
            sys.stderr.write('K')
    

    class HTMLTestRunner(Template_mixin):
    def init(self, stream=sys.stdout, verbosity=1, title=None, description=None,is_thread=False, retry=0,save_last_try=True):
    self.stream = stream
    self.retry = retry
    self.is_thread=is_thread
    self.threads= 5
    self.save_last_try=save_last_try
    self.verbosity = verbosity
    self.run_times=0
    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

    def run(self, test):
        "Run the given test case or test suite."
        self.startTime = datetime.datetime.now()
        result = _TestResult(self.verbosity, self.retry, self.save_last_try)
        test(result)
        self.stopTime = datetime.datetime.now()
        self.run_times+=1
        self.generateReport(test, result)
        if PY3K:
            # for python3
            # print('\nTime Elapsed: %s' % (self.stopTime - self.startTime),file=sys.stderr)
            output = '\nTime Elapsed: %s' % (self.stopTime - self.startTime)
            sys.stderr.write(output)
        else:
            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))
        for cls in classes:
            rmap[cls].sort(key=cmp_to_key(lambda a,b:1 if a[1].id()>b[1].id() else ( 1 if a[1].id()==b[1].id() else -1)))
        r = [(cls, rmap[cls]) for cls in classes]
        # name = t.id().split('.')[-1]
        r.sort(key=cmp_to_key(lambda a, b: 1 if a[0].__name__ > b[0].__name__ else -1))
        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(u'<span class="tj passCase">Pass</span>:%s' % result.success_count)
        if result.failure_count:
            status.append(u'<span class="tj failCase">Failure</span>:%s' % result.failure_count)
        if result.error_count:
            status.append(u'<span class="tj errorCase">Error</span>:%s' % result.error_count)
        if result.skip_count:
            status.append(u'<span class="tj skipCase">Skip</span>:%s' % result.skip_count)
        total = result.success_count+result.failure_count+result.error_count # +result.skip_count
        if total>0:
            passed = result.success_count*1.000/total*100
        else:
            passed =0.0
        status.append(u'<span class="tj">通过率</span>:%.1f%%' % passed)
        if status:
            status = u' '.join(status)
        else:
            status = 'none'
        return [
            (u'开始时间', startTime),
            (u'耗时', duration),
            (u'状态', 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,
            channel=self.run_times,
        )
        if PY3K:
            self.stream.write(output.encode())
        else:
            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=name,
                value=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 = ns = 0
            for n, t, o, e in cls_results:
                if n == 0:
                    np += 1
                elif n == 1:
                    nf += 1
                elif n==2:
                    ne += 1
                else:
                    ns +=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
            if not PY3K:
                if isinstance(desc, str):
                    desc = desc.decode("utf-8")
    
            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.%s' % (self.run_times,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)
        total = result.success_count + result.failure_count + result.error_count #+result.skip_count
        report = self.REPORT_TMPL % dict(
            test_list=u''.join(rows),
            count=str(total),
            Pass=str(result.success_count),
            Pass_p=result.success_count*1.00/total*100 if total else 0.0,
            fail=str(result.failure_count),
            error=str(result.error_count),
            skip=str(result.skip_count),
            total=str(total),
            channel=str(self.run_times),
        )
        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)
        if n==0:
            tmp="p"
        elif n==1:
            tmp="f"
        elif n==2:
            tmp = "e"
        else:
            tmp = "s"
        tid = tmp + 't%d.%d.%d' % (self.run_times,cid + 1, tid + 1)
        name = t.id().split('.')[-1]
        if self.verbosity > 1:
            doc = getattr(t,'_testMethodDoc',"") or ''
        else:
            doc = ""
    
        desc = doc and ('%s: %s' % (name, doc)) or name
        if not PY3K:
            if isinstance(desc, str):
                desc = desc.decode("utf-8")
        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):
            # uo = unicode(o.encode('string_escape'))
            if PY3K:
                uo = o
            else:
                uo = o.decode('utf-8', 'ignore')
        else:
            uo = o
        if isinstance(e, str):
            # ue = unicode(e.encode('string_escape'))
            if PY3K:
                ue = e
            elif e.find("Error") != -1 or e.find("Exception") != -1:
                es = e.decode('utf-8', 'ignore').split('\n')
                try:
                    if es[-2].find("\\u") != -1 or es[-2].find('"\\u') != -1:
                        es[-2] = es[-2].decode('unicode_escape')
                except Exception:
                    pass
                ue = u"\n".join(es)
            else:
                ue = e.decode('utf-8', 'ignore')
        else:
            ue = e
    
        script = self.REPORT_TEST_OUTPUT_TMPL % dict(
            id=tid,
            output=saxutils.escape(uo + ue),
        )
        if getattr(t,'imgs',[]):
            # 判断截图列表,如果有则追加
            tmp = u""
            for i, img in enumerate(t.imgs):
                if i==0:
                    tmp+=""" <img src="data:image/jpg;base64,%s" style="display: block;" class="img"/>\n""" % img
                else:
                    tmp+=""" <img src="data:image/jpg;base64,%s" style="display: none;" class="img"/>\n""" % img
            imgs = self.IMG_TMPL % dict(imgs=tmp)
        else:
            imgs = u"""无截图"""
    
        row = tmpl % dict(
            tid=tid,
            Class=(n == 0 and 'hiddenRow' or 'none'),
            style=n == 2 and 'errorCase' or (n == 1 and 'failCase' or 'passCase'),
            desc=desc,
            script=script,
            status=self.STATUS[n],
            img=imgs,
        )
        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)

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