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code coverage on the command line
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#import <stdio.h> | |
// xcrun clang -g -Wall -Werror -fprofile-instr-generate -fcoverage-mapping -o testprof testprof.m | |
// ./testprof | |
// xcrun llvm-profdata merge -o testprof.profdata default.profraw | |
// xcrun llvm-cov show ./testprof -instr-profile=testprof.profdata testprof.m | |
static int DoSomething (int value) { | |
if (value == 55) { | |
printf ("got 55\n"); | |
} else { | |
printf ("got something else\n"); | |
} | |
return 23; | |
} // DoSomething | |
static void DoSomethingElse (int value) { | |
int blah = DoSomething(value); | |
if (blah == 23) { | |
printf ("yay 23\n"); | |
} else { | |
printf ("bummer\n"); | |
} | |
} // DoSomethingElse | |
int main (int argc, char *argv[]) { | |
if (argc != 1) { | |
printf ("bad usage\n"); | |
return -1; | |
} | |
DoSomethingElse (55); | |
return 0; | |
} // main | |
#if 0 | |
% ./testprof | |
got 55 | |
yay 23 | |
% xcrun llvm-profdata merge -o testprof.profdata default.profraw | |
% xcrun llvm-cov show ./testprof -instr-profile=testprof.profdata testprof.m | |
| 1|#import <stdio.h> | |
| 2| | |
| 3|// clang -g -Wall -Werror -o testprof testprof.m | |
| 4|// clang -g -Wall -Werror -fprofile-instr-generate -fcoverage-mapping -o testprof testprof.m | |
| 5| | |
| 6| | |
1| 7|static int DoSomething (int value) { | |
1| 8| if (value == 55) { | |
1| 9| printf ("got 55\n"); | |
0| 10| } else { | |
0| 11| printf ("got something else\n"); | |
0| 12| } | |
1| 13| | |
1| 14| return 23; | |
1| 15| | |
1| 16|} // DoSomething | |
| 17| | |
| 18| | |
1| 19|static void DoSomethingElse (int value) { | |
1| 20| int blah = DoSomething(value); | |
1| 21| | |
1| 22| if (blah == 23) { | |
1| 23| printf ("yay 23\n"); | |
0| 24| } else { | |
0| 25| printf ("bummer\n"); | |
0| 26| } | |
1| 27| | |
1| 28|} // DoSomethingElse | |
| 29| | |
| 30| | |
1| 31|int main (int argc, char *argv[]) { | |
1| 32| | |
0| 33| if (argc != 1) { | |
0| 34| printf ("bad usage\n"); | |
0| 35| return -1; | |
0| 36| } | |
1| 37| | |
1| 38| DoSomethingElse (55); | |
1| 39| | |
1| 40| return 0; | |
1| 41| | |
1| 42|} // main | |
#endif |
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// xcrun swiftc -profile-generate -profile-coverage-mapping testprof.swift | |
// ./testprof | |
// xcrun llvm-profdata merge -o testprof.profdata default.profraw | |
// xcrun llvm-cov show ./testprof -instr-profile=testprof.profdata testprof.swift | |
func DoSomething (value: Int) -> Int { | |
if value == 55 { | |
print ("got 55\n") | |
} else { | |
print ("got something else\n") | |
} | |
return 23; | |
} | |
func DoSomethingElse (value: Int) -> Void { | |
let blah = DoSomething (value) | |
if blah == 23 { | |
print ("yay 23") | |
} else { | |
print ("bummer") | |
} | |
} | |
DoSomethingElse(55) | |
/* | |
| 1|// xcrun swiftc -profile-generate -profile-coverage-mapping testprof.swift | |
| 2|// testprof | |
| 3|// xcrun llvm-profdata merge -o testprof.profdata default.profraw | |
| 4|// xcrun llvm-cov show ./testprof -instr-profile=testprof.profdata testprof.swift | |
| 5| | |
1| 6|func DoSomething (value: Int) -> Int { | |
1| 7| if value == 55 { | |
1| 8| print ("got 55\n") | |
0| 9| } else { | |
0| 10| print ("got something else\n") | |
0| 11| } | |
1| 12| | |
1| 13| return 23; | |
1| 14|} | |
| 15| | |
1| 16|func DoSomethingElse (value: Int) -> Void { | |
1| 17| let blah = DoSomething (value) | |
1| 18| | |
1| 19| if blah == 23 { | |
1| 20| print ("yay 23") | |
0| 21| } else { | |
0| 22| print ("bummer") | |
0| 23| } | |
1| 24|} | |
| 25| | |
| 26|DoSomethingElse(55) | |
*/ |
Got it with a iOS framework project (named CodeCoverage):
xcodebuild test -scheme CodeCoeverage-destination name="iPhone SE" -destination-timeout 60 -derivedDataPath ./DerivedData
xcrun llvm-cov show DerivedData/Build/Intermediates/CodeCoverage/Products/Debug-iphonesimulator/CodeCoverage.framework/CodeCoverage -instr-profile=DerivedData/Build/Intermediates/CodeCoverage/Coverage.profdata
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$ xcrun swiftc -profile-generate -profile-coverage-mapping testprof.swift
$ xcrun llvm-profdata merge -o testprof.profdata default.profraw
$ xcrun llvm-cov show ./testprof -instr-profile=testprof.profdata testprof.m