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Add a testing script and a github workflow
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@jarzec
jarzec committed Dec 19, 2023
1 parent a70aa9d commit d015e53
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48 changes: 48 additions & 0 deletions .github/workflows/regression-tests.yml
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name: Regression tests

on:
push:
pull_request:
types: [opened, synchronize, reopened]

jobs:
regression-tests-linux-mac:
name: Run on ${{ matrix.os }} using ${{ matrix.compiler }}
runs-on: ${{ matrix.os }}
env:
CXX: ${{ matrix.compiler }}

strategy:
fail-fast: false
matrix:
os: [ubuntu-latest]
compiler: [g++-10, g++-13, clang++-12]
include:
- os: macos-latest
compiler: clang++
- os: windows-latest
compiler: cl.exe
steps:
- name: Checkout repo
uses: actions/checkout@v3

- name: Install compiler
if: matrix.os == 'ubuntu-latest'
run: |
sudo apt-get update
sudo apt-get install -y ${CXX/clang++/clang}
- name: Run regression tests - Linux and macOS version
if: matrix.os == 'ubuntu-latest' || matrix.os == 'macOS-latest'
run: |
cd regression-tests
bash run-tests.sh -c ${{ matrix.compiler }}
- name: Run regression tests - Windows version
if: matrix.os == 'windows-latest'
run: |
"C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat" && ^
git config --local core.autocrlf false && ^
cd regression-tests && ^
bash run-tests.sh -c ${{ matrix.compiler }}
shell: cmd
306 changes: 306 additions & 0 deletions regression-tests/run-tests.sh
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#!/bin/bash

################
usage() {
echo "Usage: $0 -c <compiler> [-t <tests to run>]"
echo " -c <compiler> The compiler to use for the test"
echo " -t <tests to run> Runs only the provided, comma-separated tests (filenames including .cpp2)"
echo " If the argument is not used all tests are run"
exit 1
}

check_file () {
file="$1"
# Check if the file is tracked by bit
git ls-files --error-unmatch "$file" > /dev/null 2>&1
untracked=$?
# Compare the content with the refernece value
diff_output=$(git diff --ignore-cr-at-eol -- "$file")
}

optstring="c:t:"
while getopts ${optstring} arg; do
case "${arg}" in
c)
cxx_compiler="${OPTARG}"
;;
t)
# Replace commas with spaces
chosen_tests=${OPTARG/,/ }
;;
\?)
echo "Invalid option: -${OPTARG}."
echo
usage
;;
:)
echo "Missing option argument for -$OPTARG"
echo
usage
;;
*)
usage
exit 1
;;
esac
done

if [ -z "$cxx_compiler" ]; then
echo "Compiler not specified"
usage
fi

tests=$(ls | grep ".cpp2$")
if [[ -n "$chosen_tests" ]]; then
for test in $chosen_tests; do
if ! [[ -f "$test" ]]; then
echo "Requested test ($test) not found"
exit 1
fi
done
echo "Performing tests:"
for test in $chosen_tests; do
echo " $test"
done
echo
tests="$chosen_tests"
else
printf "Performing all regression tests\n\n"
fi

expected_results_dir="test-results"

################
# Get the directory with the exec outputs and compilation command
if [[ "$cxx_compiler" == *"cl.exe"* ]]; then
compiler_cmd='cl.exe -nologo -std:c++latest -MD -EHsc -I ..\include -I ..\..\..\include -experimental:module -Fe:'
exec_out_dir="$expected_results_dir/msvc-2022"
compiler_version=$(cl.exe)
else
compiler_cmd="$cxx_compiler -I../include -I../../../include -std=c++20 -pthread -o "

compiler_ver=$("$cxx_compiler" --version)
if [[ "$compiler_ver" == *"Apple clang version 14.0"* ]]; then
exec_out_dir="$expected_results_dir/apple-clang-14"
elif [[ "$compiler_ver" == *"clang version 12.0"* ]]; then
exec_out_dir="$expected_results_dir/clang-12"
elif [[ "$compiler_ver" == *"clang version 15.0"* ]]; then
exec_out_dir="$expected_results_dir/clang-15"
elif [[ "$compiler_ver" == *"g++-10"* ]]; then
exec_out_dir="$expected_results_dir/gcc-10"
elif [[ "$compiler_ver" == *"g++-12"* ||
"$compiler_ver" == *"g++-13"*
]]; then
exec_out_dir="$expected_results_dir/gcc-13"
fi

compiler_version=$("$cxx_compiler" --version)
fi

if [[ -d "$exec_out_dir" ]]; then
printf "Full compiler version for '$cxx_compiler':\n$compiler_version\n\n"

printf "Directory with reference compilation/execution files to use:\n$exec_out_dir\n\n"
else
printf "not found for compiler: '$cxx_compiler'\n\n"
fi

################
cppfront_cmd="cppfront.exe"
echo "Building cppfront"
$compiler_cmd"$cppfront_cmd" ../source/cppfront.cpp
if [[ $? -ne 0 ]]; then
echo "Compilation failed"
exit 2
fi

################
failed_tests=()
failed_compilations=()
skipped_tests=()
echo "Running regression tests"
for test_file in $tests; do
test_name=${test_file%.*}
expeced_output="$expected_results_dir/$test_file.output"
generated_cpp_name=$test_name.cpp
expected_src="$expected_results_dir/$generated_cpp_name"
test_bin="test.exe"

# Choose mode - default to mixed code
descr="mixed cpp1 and cpp2 code"
opt=""
# Using naming convention to discriminate pure cpp2 code
if [[ $test_name == "pure2"* ]]; then
descr="pure cpp2 code"
opt="-p"
fi
echo " Testing $descr: $test_name.cpp2"

########
# Run the translation test
echo " Generating C++1 code"
./"$cppfront_cmd" "$test_file" -o "$expected_src" $opt > "$expeced_output" 2>&1

failure=0
compiler_issue=0
########
# Check the output
if [ -f "$expeced_output" ]; then
# The C++1 generation output has to be tracked
check_file "$expeced_output"
if [[ $untracked -eq 1 ]]; then
echo " The C++1 generation output file is not tracked by git:"
echo " $expeced_output"
failure=1
elif [[ -n "$diff_output" ]]; then
echo " Non-matching std out/err:"
printf "\n$diff_output\n\n"
failure=1
fi
else
echo " Missing expected output file treaded as failure"
failure=1
fi

########
# Check the generated code
if [ -f "$expected_src" ]; then
# The file was generated, so it shoudl be tracked by git
check_file "$expected_src"
if [[ $untracked -eq 1 ]]; then
echo " The generated file is not tracked by git:"
echo " $expected_src"
failure=1
elif [[ -n "$diff_output" ]]; then
echo " Non-matching generated src:"
printf "\n$diff_output\n\n"
failure=1
else
########
# Compile and run the generated code in a sub-shell
expected_src_compil_out="$exec_out_dir/$generated_cpp_name.output"
expected_src_exec_out="$exec_out_dir/$generated_cpp_name.execution"
expected_files="$expected_results_dir/$test_name.files"

echo " Compiling generated code:$expected_files"

# For some tests the binary needs to be placed in "$exec_out_dir"
# For that reason the compilation is done directly in that dir
# The source is temporarily copied avoid issues with bash paths in cl.exe
(cd $exec_out_dir; \
cp ../../$expected_src $generated_cpp_name;
$compiler_cmd"$test_bin" \
$generated_cpp_name \
> $generated_cpp_name.output 2>&1)
compilation_result=$?
rm $exec_out_dir/$generated_cpp_name

if [ -f "$expected_src_compil_out" ]; then
# Check for local compiler issues
if [[ $compilation_result -ne 0 ]]; then
# Workaround an issue with MSVC mising std modules
if cat $expected_src_compil_out | grep -q "error C1011"; then
echo " Skipping further checks due to missing std modules support:"
compiler_issue=1
fi
fi
########
# Check the compilation message (if there are no local compiler issues)
if [[ $compiler_issue -ne 1 ]]; then
check_file "$expected_src_compil_out"
if [[ $untracked -eq 1 ]]; then
echo " The compilation message file is not tracked by git:"
echo " $expected_src_compil_out"
failure=1
elif [[ -n "$diff_output" ]]; then
echo " Non-matching comilation output:"
printf "\n$diff_output\n\n"
failure=1
fi
fi
# Check the result of a successful compilation
if [[ $compilation_result -eq 0 ]]; then
########
# Execute the compiled code in $exec_out_dir
echo " Executing the compiled test binary"
# Run the binary in a sub-shell in $exec_out_dir so that files are written there
( cd "$exec_out_dir"; ./$test_bin > "$generated_cpp_name.execution" 2>&1 )

check_file "$expected_src_exec_out"
if [[ $untracked -eq 1 ]]; then
echo " Execution output file is not tracked by git:"
echo " $expected_src_exec_out"
failure=1
elif [[ -n "$diff_output" ]]; then
echo " Non-matching execution output:"
printf "\n$diff_output\n\n"
failure=1
fi
# If the test generates files check their content
if [[ -f "$expected_files" ]]; then
echo " Checking written files"
files="$(cat "$expected_files")"
for file in ${files/,/ }; do
check_file "$exec_out_dir/$file"
if [[ $untracked -eq 1 ]]; then
echo " The file generated by the binary is not tracked by git:"
echo " $exec_out_dir/$file"
failure=1
elif [[ -n "$diff_output" ]]; then
echo " Non-matching content of written file:"
printf "\n$diff_output\n\n"
failure=1
fi
done
fi
fi
fi
fi
elif [[ $(cat "$expeced_output") != *"error"* ]]; then
echo " Missing generated src file treated as failure"
echo " Failing compilation message needs to contain 'error'"
failure=1
fi

if [[ $failure -ne 0 ]]; then
failed_tests+=($test_name)
fi

if [[ $compiler_issue -ne 0 ]]; then
skipped_tests+=($test_name)
elif [[ $compilation_result -ne 0 ]]; then
failed_compilations+=($test_name)
fi
done

################
# Report missing reference data direcotry
if [[ ! -d "$exec_out_dir" ]]; then
echo "Reference data directory not found for compiler: '$cxx_compiler'"
exit 3
fi

################
# Report skipped/failed tests
report_issues() {
local msg=$1
shift 1
local reported_tests=("$@")
local num_reported_tests=$(wc -w <<< ${reported_tests[@]})
if [ $num_reported_tests -ne 0 ]; then
echo "$msg: $num_reported_tests"
for reported_test in ${reported_tests[@]}; do
echo " $reported_test.cpp2"
done
fi
return $num_reported_tests
}

report_issues "Tests skipped due to compiler issues" "${skipped_tests[@]}"
report_issues "Tests with failing compilation step" "${failed_compilations[@]}"
report_issues "Failed tests" "${failed_tests[@]}"
num_failed_tests=$?
if [ $num_failed_tests -eq 0 ]; then
echo "All tests passed"
fi
exit $num_failed_tests
1 change: 1 addition & 0 deletions regression-tests/test-results/pure2-stdio-with-raii.files
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xyzzy
1 change: 1 addition & 0 deletions regression-tests/test-results/pure2-stdio.files
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xyzzy

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