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Implement WebAssembly + WASI GH actions
WebAssembly + WASI GH actions have specific tasks for the following steps: - apt: an existing PHP installation will be used as the test runner, as opposed to the binary being built. It also installs other dependencies used by later stages, such as Wasmtime (WebAssembly runtime), and Binaryen (contains `wasm-opt`, to be used on the optimization phase.) - configure-wasi: specific configure values. - optimize-wasi (new action): performs binaryen optimization passes on the resulting binary. - test-wasi: requires a wrapper that will use `wasmtime` to run the `php` CLI compiled to WebAssembly.
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‎.github/actions/apt-wasi/action.yml‎

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name: apt
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inputs:
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wasi_sdk_version:
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default: 19
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wasmtime_version:
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default: 5.0.0
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binaryen_version:
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default: 111
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runs:
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using: composite
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steps:
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- shell: bash
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run: |
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set -x
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sudo apt-get update
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sudo apt-get install \
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php \
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libtool-bin \
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bison \
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re2c \
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tcl
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- shell: bash
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run: |
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set -x
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wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${{ inputs.wasi_sdk_version }}/wasi-sdk_${{ inputs.wasi_sdk_version }}.0_amd64.deb
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sudo dpkg -i wasi-sdk_${{ inputs.wasi_sdk_version }}.0_amd64.deb
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- shell: bash
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run: |
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echo /opt/wasi-sdk/bin >> $GITHUB_PATH
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- shell: bash
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run: |
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set -x
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mkdir -p /opt/bin
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wget https://github.com/bytecodealliance/wasmtime/releases/download/v${{ inputs.wasmtime_version }}/wasmtime-v${{ inputs.wasmtime_version }}-x86_64-linux.tar.xz
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tar -xvf wasmtime-v${{ inputs.wasmtime_version }}-x86_64-linux.tar.xz
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mv wasmtime-v${{ inputs.wasmtime_version }}-x86_64-linux/wasmtime /opt/bin/
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- shell: bash
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run: |
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set -x
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mkdir -p /opt/bin
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wget https://github.com/WebAssembly/binaryen/releases/download/version_${{ inputs.binaryen_version }}/binaryen-version_${{ inputs.binaryen_version }}-x86_64-linux.tar.gz
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tar -xvf binaryen-version_${{ inputs.binaryen_version }}-x86_64-linux.tar.gz --strip-components=2 -C /opt/bin binaryen-version_${{ inputs.binaryen_version }}/bin/wasm-opt

‎.github/actions/configure-wasi/action.yml‎

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name: ./configure
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inputs:
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configurationParameters:
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default: ''
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required: false
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runs:
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using: composite
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steps:
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- shell: bash
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run: |
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set -x
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./buildconf --force
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./configure \
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--host=wasm32-wasi host_alias=wasm32-musl-wasi \
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--target=wasm32-wasi target_alias=wasm32-musl-wasi \
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--disable-all \
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--disable-ctype \
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--disable-dom \
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--disable-fiber-asm \
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--disable-fileinfo \
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--disable-filter \
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--disable-flatfile \
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--disable-huge-code-pages \
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--disable-inifile \
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--disable-mbregex \
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--disable-mysqlnd-compression-support \
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--disable-opcache \
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--disable-opcache-jit \
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--disable-pdo \
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--disable-phar \
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--disable-posix \
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--disable-session \
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--disable-simplexml \
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--disable-tokenizer \
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--disable-xml \
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--disable-xmlreader \
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--disable-xmlwriter \
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--disable-zend-signals \
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--without-cdb \
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--without-libxml \
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--without-openssl \
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--without-pcre-jit \
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--without-pear \
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--without-sqlite3 \
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CFLAGS="-D_WASI_EMULATED_GETPID -D_WASI_EMULATED_SIGNAL -D_WASI_EMULATED_PROCESS_CLOCKS" \
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LDFLAGS="-lwasi-emulated-getpid -lwasi-emulated-signal -lwasi-emulated-process-clocks" \
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${{ inputs.configurationParameters }}

‎.github/actions/optimize-wasi/action.yml‎

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name: Optimize
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runs:
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using: composite
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steps:
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- shell: bash
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run: |
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set -x
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/opt/bin/wasm-opt -O sapi/cli/php -o sapi/cli/php.optimized
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- shell: bash
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run: |
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set -x
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/opt/bin/wasm-opt -O sapi/cgi/php-cgi -o sapi/cgi/php-cgi.optimized

‎.github/actions/test-wasi/action.yml‎

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name: Test
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inputs:
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testArtifacts:
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default: null
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required: false
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runTestsParameters:
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default: ''
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required: false
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runs:
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using: composite
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steps:
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- shell: bash
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run: |
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cat <<-'EOF' > /opt/bin/wasmtime-run-cli.sh
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#!/bin/bash
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WASMTIME_BACKTRACE_DETAILS=1 /opt/bin/wasmtime run --mapdir /::/ "$PWD/sapi/cli/php.optimized" 2> /dev/null -- "$@"
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EOF
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chmod +x /opt/bin/wasmtime-run-cli.sh
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cat <<-'EOF' > /opt/bin/wasmtime-run-cgi.sh
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#!/bin/bash
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WASMTIME_BACKTRACE_DETAILS=1 /opt/bin/wasmtime run --mapdir /::/ "$PWD/sapi/cgi/php-cgi.optimized" 2> /dev/null -- "$@"
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EOF
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chmod +x /opt/bin/wasmtime-run-cgi.sh
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- shell: bash
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run: |
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set -x
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export SKIP_IO_CAPTURE_TESTS=1
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export TEST_PHP_JUNIT=junit.out.xml
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export STACK_LIMIT_DEFAULTS_CHECK=1
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export TEST_PHP_EXECUTABLE=/opt/bin/wasmtime-run-cli.sh
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export TEST_PHP_CGI_EXECUTABLE=/opt/bin/wasmtime-run-cgi.sh
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export TEST_PHPDBG_EXECUTABLE=""
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php run-tests.php -q ${{ inputs.runTestsParameters }} \
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-j$(/usr/bin/nproc) \
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-g FAIL,BORK,LEAK,XLEAK \
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--no-progress \
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--offline \
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--show-diff \
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--show-slow 1000 \
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--set-timeout 120
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- uses: actions/upload-artifact@v3
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if: always() && inputs.testArtifacts != null
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with:
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name: ${{ github.job }}_${{ inputs.testArtifacts }}
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path: ${{ github.workspace }}/junit.out.xml
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retention-days: 5

‎.github/workflows/push.yml‎

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${{ github.sha }} \
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$(git merge-base ${{ github.event.pull_request.base.sha }} ${{ github.sha }}) \
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> $GITHUB_STEP_SUMMARY
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WASM32_WASI:
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name: "WASM32_WASI_${{ matrix.debug && 'DEBUG' || 'RELEASE' }}_${{ matrix.zts && 'ZTS' || 'NTS' }}"
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runs-on: ubuntu-20.04
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env:
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CC: clang
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CXX: clang++
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LD: wasm-ld
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AR: llvm-ar
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RANLIB: llvm-ranlib
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steps:
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- name: git checkout
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uses: actions/checkout@v3
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- name: apt
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uses: ./.github/actions/apt-wasi
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- name: ./configure
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uses: ./.github/actions/configure-wasi
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with:
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configurationParameters: >-
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--${{ matrix.debug && 'enable' || 'disable' }}-debug
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--${{ matrix.zts && 'enable' || 'disable' }}-zts
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- name: make
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env:
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CFLAGS: "-D_WASI_EMULATED_GETPID -D_WASI_EMULATED_SIGNAL -D_WASI_EMULATED_PROCESS_CLOCKS"
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LDFLAGS: "-lwasi-emulated-getpid -lwasi-emulated-signal -lwasi-emulated-process-clocks"
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run: make -j$(/usr/bin/nproc) cgi cli
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- name: Optimize
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uses: ./.github/actions/optimize-wasi
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# To be defined how to approach test coverage on this platform.
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# - name: Test
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# uses: ./.github/actions/test-wasi
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# with:
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# testArtifacts: ${{ matrix.debug && 'DEBUG' || 'RELEASE' }}_${{ matrix.zts && 'ZTS' || 'NTS' }}
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# - name: Verify generated files are up to date
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# uses: ./.github/actions/verify-generated-files

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