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#! /usr/bin/env python
# Copyright (c) 2017 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
import os
import subprocess
import re
import sys
import pprint
import FileUtil
import Language_C
class GCov:
def __init__(self):
return
def canonicalizeLines(lines):
result = []
accumulatedLine = ""
for line in lines:
line = line.strip()
if len(line) == 0:
if len(accumulatedLine.strip()) > 0:
result.append(accumulatedLine.strip())
accumulatedLine = ""
elif "creating" in line:
if len(accumulatedLine.strip()) > 0:
result.append(accumulatedLine.strip())
accumulatedLine = ""
result.append(line)
else:
accumulatedLine = accumulatedLine + " " + line
return result
def executeGCovCommand(testExecutableFileName):
currentDirectory = os.getcwd()
targetDirectory = os.path.dirname(os.path.abspath(testExecutableFileName))
testExecutableBaseName = os.path.basename(testExecutableFileName)
os.chdir(targetDirectory)
objects = Language_C.findFiles("./", testExecutableBaseName+"*.o")
if not objects:
return
objdir = os.path.dirname(objects[0])
gcdas = Language_C.findFiles("./", testExecutableBaseName+"*.gcda")
if not gcdas:
return
gcda = gcdas[0]
gcnos = Language_C.findFiles("./", testExecutableBaseName+"*.gcno")
if not gcnos:
return
gcno = gcnos[0]
proc = subprocess.Popen(['gcov', '-af', '-o='+objdir, '-gcda='+gcda, '-gcno='+gcno, testExecutableBaseName], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
os.chdir(currentDirectory)
inputLines = map(lambda line: line.strip(), proc.stdout)
return canonicalizeLines(inputLines)
def parseFunctionLine(line):
# Function 'TestFixture_Global_TearDown' Lines executed:71.43% of 7"
search = re.search("Function '(.*)' Lines executed:(.*)% of (.*)", line, re.IGNORECASE)
result = []
if search:
functionName = search.group(1)
percentage = search.group(2)
totalLines = search.group(3)
result = { functionName : { "coverage" : float(percentage), "numberOfLines" : int(totalLines) } }
return result
def parseFileLine(testExecutableDirectoryName, line):
# File './../parc_Buffer.c' Lines executed:92.69% of 424
search = re.search("File '(.*)' Lines executed:(.*)% of (.*)", line, re.IGNORECASE)
result = { }
if search:
baseName = os.path.basename(search.group(1));
fileName = os.path.abspath(testExecutableDirectoryName + "/" + baseName)
percentage = search.group(2)
totalLines = search.group(3)
result = { fileName : { "coverage" : float(percentage), "totalLines" : int(totalLines) } }
return result
def parseCreatingLine(testExecutableDirectoryName, line):
search = re.search("(.*):creating '(.*)'", line, re.IGNORECASE)
result = None
if search:
baseName = os.path.basename(search.group(1));
fileName = os.path.abspath(testExecutableDirectoryName + "/" + baseName)
baseName = os.path.basename(search.group(2));
gcovFileName = os.path.abspath(testExecutableDirectoryName + "/" + baseName)
result = { "fileName" : fileName, "gcovFileName" : gcovFileName, "gcovLines" : FileUtil.readFileLines(gcovFileName) }
return result
def computeCoverageFromGCovLines(testExecutableDirectoryName, testExecutableFileName, lines):
'''
This produces a dictionary consisting of:
'testedFiles' : dictionary containing as keys 'functions' and the name of a file that was tested
The value of the key that is the name of a file that was tested is a dictionary containing the keys,
'coverage', 'gcovFileName', and 'gcovLines'
'coverage' is the percentage of code executed
'testedFunctions' is a list containing lists consisting of the function name, the percent executed, and the number of lines in the function.
'''
testedFiles = { }
testedFunctions = { }
gcovFileNames = []
for line in lines:
if line.startswith("Function"):
element = parseFunctionLine(line)
testedFunctions.update(element)
elif line.startswith("File"):
element = parseFileLine(testExecutableDirectoryName, line)
testedFiles.update(element)
else:
element = parseCreatingLine(testExecutableDirectoryName, line)
if element != None:
fileName = element["fileName"]
del element["fileName"]
testedFiles[fileName].update(element)
pass
result = { testExecutableFileName : { "testedFunctions" : testedFunctions, "testedFiles" : testedFiles } }
return result
def noCoverage():
result = { "testedFiles" : { }, "testedFunctions" : { } }
return result
def getCoverage(testExecutableFileName):
'''
'''
if testExecutableFileName == None:
return None
testExecutableFileName = os.path.abspath(testExecutableFileName)
testExecutableDirectoryName = os.path.dirname(testExecutableFileName)
gcovLines = executeGCovCommand(testExecutableFileName)
return computeCoverageFromGCovLines(testExecutableDirectoryName, testExecutableFileName, gcovLines)
def selectGreaterCoverage(testedFileA, testedFileB):
result = testedFileB
if testedFileA["coverage"] >= testedFileB["coverage"]:
result = testedFileA
return result
def computeSummary(filesAndTests, newGCovResults):
'''
First, for each target file named in the gcov results, find the corresponding testedFile and report the maximum coverage.
If the target file is not in any of the testedFiles
{ targetFileName : { "coverage": percent, "veracity" : "direct" / "indirect" } }
'''
newGCovResults = filter(lambda entry: entry != None, newGCovResults)
result = dict()
for entry in newGCovResults:
for testExecutableName in entry:
testExecutableCSourceName = Language_C.Module(testExecutableName).getCSourceName()
for testedFileName in entry[testExecutableName]["testedFiles"]:
testedFile = entry[testExecutableName]["testedFiles"][testedFileName]
if Language_C.Module(testedFileName).getTestExecutableName() == os.path.basename(testExecutableName):
result[testedFileName] = testedFile
result[testedFileName]["direct"] = "direct"
elif testedFileName in result:
bestCoverage = selectGreaterCoverage(testedFile, result[testedFileName])
if result[testedFileName] != bestCoverage:
result[testedFileName] = bestCoverage
result[testedFileName]["direct"] = "indirect"
else:
result[testedFileName] = testedFile
result[testedFileName]["direct"] = "indirect"
return result
def computeAverage(filesAndTests, gcovResults):
summary = computeSuperSummary(filesAndTests, gcovResults)
filesToAverage = removeTestSourceFiles(summary)
score = 0.0
if len(filesToAverage) > 0:
sum = reduce(lambda x, y: x + y, map(lambda entry: summary[entry]["coverage"], filesToAverage))
score = sum / float(len(filesToAverage))
return score
if __name__ == '__main__':
pp = pprint.PrettyPrinter(indent=4, width=132)
if True:
gcovResult = getCoverage("/Users/gscott/Documents/workspace/Distillery/Libparc/parc/algol/test/test_parc_JSON")
else:
lines = sys.stdin.readlines()
lines = canonicalizeLines(lines)
pp.pprint(lines)
gcovResult = computeCoverageFromGCovLines("/Users/gscott/Documents/workspace/Distillery/Libparc/parc/algol/test/", lines)
pp.pprint(gcovResult)
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