[WIP] Reorganize tests into unit and system suites

.github/workflows/ci.yml

@@ -7,88 +7,156 @@ on:
     branches: [main]
 
 jobs:
-  linux:
+  linux-unit-tests:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
       - name: Install dependencies
-        run: sudo apt-get update && sudo apt-get install -y libfuse3-dev fuse3
+        run: sudo apt-get update && sudo apt-get install -y libfuse3-dev fuse3 libelf-dev zlib1g-dev
       - name: Configure
-        run: cmake -B build -DAGENTVFS_EBPF=OFF
+        run: cmake -B build -DAGENTVFS_EBPF=OFF -DAGENTVFS_LDPRELOAD=ON
       - name: Build
         run: cmake --build build -j
       - name: Unit tests
         run: |
-          ./build/cas_test_working_tree
-          ./build/cas_test_write_buffer
-          ./build/cas_test_object_store
-          ./build/cas_test_branch_context
-          ./build/cas_test_branch_merge
-          ./build/cas_test_branch_merge_commit
-          ./build/cas_test_fh_lifecycle /tmp /tmp/test.sock || true
-          ./build/cas_test_branch_merge_daemon || true
-          ./build/cas_test_branch_persistence || true
-          ./build/cas_test_blake3_simd
-          ./build/cas_test_telemetry_event
-          ./build/cas_test_telemetry_registry
+          run_test() {
+            echo "==> $1"
+            "$1"
+          }
+
+          run_test ./build/tests/cas_test_working_tree
+          run_test ./build/tests/cas_test_write_buffer
+          run_test ./build/tests/cas_test_object_store
+          run_test ./build/tests/cas_test_branch_context
+          run_test ./build/tests/cas_test_branch_merge
+          run_test ./build/tests/cas_test_branch_merge_commit
+          run_test ./build/tests/cas_test_branch_merge_daemon
+          run_test ./build/tests/cas_test_branch_persistence
+          run_test ./build/tests/cas_test_blake3_simd
+          run_test ./build/tests/cas_test_telemetry_event
+          run_test ./build/tests/cas_test_telemetry_registry
+          run_test ./build/tests/cas_test_workspace_cli
+          run_test ./build/tests/cas_test_ebpf_backend
+          run_test ./build/tests/cas_test_fanotify_backend
+          run_test ./build/tests/cas_test_ptrace_backend
+          run_test ./build/tests/cas_test_ldpreload_backend
+          run_test ./build/tests/cas_test_bpftime_backend
+          run_test ./build/tests/cas_test_wasm_backend
+          run_test ./build/tests/cas_test_lua_backend
+          run_test ./build/tests/cas_test_ldpreload_preload
 
-  macos:
+  macos-unit-tests:
     runs-on: macos-latest
     strategy:
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
       - name: Configure
         # AGENTVFS_FUSE_T defaults to ON on Apple; disable it here so this
-        # portable-only job doesn't require fuse-t (covered by macos-daemon).
+        # unit-only job doesn't require fuse-t.
         run: cmake -B build -DAGENTVFS_EBPF=OFF -DAGENTVFS_FUSE_T=OFF
       - name: Build
         run: cmake --build build -j
       - name: Unit tests
-        # macOS is UNIX, so every UNIX-gated test still builds and runs.
-        # The daemon target is Linux-only and is intentionally not built
-        # here.
         run: |
-          ./build/cas_test_working_tree
-          ./build/cas_test_write_buffer
-          ./build/cas_test_object_store
-          ./build/cas_test_branch_context
-          ./build/cas_test_branch_merge
-          ./build/cas_test_branch_merge_commit
-          ./build/cas_test_blake3_simd
-          ./build/cas_test_telemetry_event
-          ./build/cas_test_telemetry_registry
+          ./build/tests/cas_test_working_tree
+          ./build/tests/cas_test_write_buffer
+          ./build/tests/cas_test_object_store
+          ./build/tests/cas_test_branch_context
+          ./build/tests/cas_test_branch_merge
+          ./build/tests/cas_test_branch_merge_commit
+          ./build/tests/cas_test_blake3_simd
+          ./build/tests/cas_test_telemetry_event
+          ./build/tests/cas_test_telemetry_registry
+          ./build/tests/cas_test_workspace_cli
+          ./build/tests/cas_test_fuse_t_preflight
 
-  windows:
+  windows-unit-tests:
     runs-on: windows-latest
     strategy:
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
       - name: Configure
-        # AGENTVFS_WINFSP defaults to ON on Windows; explicitly disable it
-        # so this portable-only job doesn't require the WinFsp SDK.
+        # Build only unit targets here; WinFsp is reserved for system tests.
         run: cmake -B build -DAGENTVFS_EBPF=OFF -DAGENTVFS_WINFSP=OFF
       - name: Build
-        # Windows builds only the portable tests gated by the CMake
-        # if(UNIX)/if(LINUX) guards. The fh_lifecycle / object_store /
-        # branch_merge_commit / telemetry_registry / branch_persistence /
-        # branch_merge_daemon harnesses use POSIX-only APIs and are not
-        # available here. cas_core itself compiles via std::filesystem
-        # and the posix_compat.h shim.
         run: cmake --build build --config Release -j
       - name: Unit tests
         run: |
-          .\build\Release\cas_test_working_tree.exe
-          .\build\Release\cas_test_write_buffer.exe
-          .\build\Release\cas_test_branch_context.exe
-          .\build\Release\cas_test_branch_merge.exe
-          .\build\Release\cas_test_blake3_simd.exe
-          .\build\Release\cas_test_telemetry_event.exe
+          .\build\tests\Release\cas_test_working_tree.exe
+          .\build\tests\Release\cas_test_write_buffer.exe
+          .\build\tests\Release\cas_test_branch_context.exe
+          .\build\tests\Release\cas_test_branch_merge.exe
+          .\build\tests\Release\cas_test_blake3_simd.exe
+          .\build\tests\Release\cas_test_telemetry_event.exe
+          .\build\tests\Release\cas_test_win_helpers.exe
+          .\build\tests\Release\cas_test_named_pipe_channel.exe
+
+  linux-system-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            libfuse3-dev \
+            fuse3 \
+            netcat-openbsd \
+            clang \
+            libbpf-dev \
+            libelf-dev \
+            zlib1g-dev \
+            liblua5.4-dev \
+            lua5.4 \
+            wabt
+      - name: Configure
+        run: cmake -B build -DAGENTVFS_EBPF=OFF -DAGENTVFS_FANOTIFY=ON -DAGENTVFS_PTRACE=ON -DAGENTVFS_LDPRELOAD=ON -DAGENTVFS_BPFTIME=ON -DAGENTVFS_WASM=ON -DAGENTVFS_LUA=ON
+      - name: Build
+        run: cmake --build build -j
+      - name: System tests
+        run: |
+          run_system_test() {
+            echo "==> $1"
+            bash "$1"
+          }
 
-  windows-daemon:
+          run_root_system_test() {
+            echo "==> $1 (root)"
+            sudo -E env "PATH=$PATH" bash "$1"
+          }
+
+          sudo sysctl -w kernel.yama.ptrace_scope=0
+
+          run_system_test tests/system/test_agentvfs_ctl.sh
+          run_system_test tests/system/test_workspace_cli.sh
+          run_system_test tests/system/test_cas_smoke.sh
+          run_system_test tests/system/test_cas_bootstrap.sh
+          run_system_test tests/system/test_cas_fh_lifecycle.sh
+          run_root_system_test tests/system/test_cas_branching.sh
+          run_root_system_test tests/system/test_cas_branch_merge.sh
+          run_root_system_test tests/system/test_cas_multi_branch.sh
+          run_root_system_test tests/system/test_cas_multi_branch_merge.sh
+          run_root_system_test tests/system/test_workspace_multi_branch.sh
+          run_system_test tests/system/test_cas_10cp_rollback.sh
+          # eBPF-specific coverage is not runnable on the hosted Ubuntu kernel/tooling image.
+          run_system_test tests/system/test_cas_backend_compare.sh
+          run_system_test tests/system/test_cas_multi_backend.sh
+          run_root_system_test tests/system/test_cas_fanotify.sh
+          run_system_test tests/system/test_cas_ptrace.sh
+          run_system_test tests/system/test_cas_ldpreload.sh
+          run_system_test tests/system/test_cas_bpftime.sh
+          run_system_test tests/system/test_cas_lua_actually_skipped.sh
+          run_system_test tests/system/test_cas_wasm_actually_skipped.sh
+          run_system_test tests/system/test_start_sh.sh
+          run_system_test tests/system/test_quickstart_demo_smoke.sh
+
+  windows-system-tests:
     runs-on: windows-latest
     strategy: { fail-fast: false }
     steps:
@@ -114,15 +182,11 @@ jobs:
         run: cmake -B build -DAGENTVFS_EBPF=OFF -DAGENTVFS_WINFSP=ON
       - name: Build
         run: cmake --build build --config Release -j
-      - name: Windows unit tests
-        run: |
-          .\build\Release\cas_test_win_helpers.exe
-          .\build\Release\cas_test_named_pipe_channel.exe
-      - name: E2E test
+      - name: System tests
         shell: powershell
-        run: ./tests/cas/windows/test_winfsp_e2e.ps1
+        run: ./tests/system/windows/test_winfsp_e2e.ps1
 
-  macos-daemon:
+  macos-system-tests:
     runs-on: macos-latest
     strategy: { fail-fast: false }
     steps:
@@ -133,7 +197,5 @@ jobs:
         run: cmake -B build -DAGENTVFS_EBPF=OFF -DAGENTVFS_FUSE_T=ON
       - name: Build
         run: cmake --build build -j
-      - name: Preflight unit test
-        run: ./build/cas_test_fuse_t_preflight
-      - name: E2E test
-        run: bash tests/cas/test_macos_e2e.sh
+      - name: System tests
+        run: bash tests/system/test_macos_e2e.sh