grabbit
a2d49137f9
Integration tests (tests/): - 9 categories covering config, lifecycle, signals, supervision, cache, writeback, network faults, crash recovery, and CLI - Shell-based harness with mock NAS (network namespace + SFTP), fault injection (tc netem), and power loss simulation - TAP format runner (run-all.sh) with proper SKIP detection Rust unit tests (warpgate/src/): - 110 tests across 14 modules, all passing in 0.01s - Config parsing, defaults validation, RestartTracker logic, RC API response parsing, rclone arg generation, service config generation, CLI output formatting, warmup path logic Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
81 lines
2.4 KiB
Bash
Executable File
81 lines
2.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Test: dirty files are protected from LRU eviction
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#
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# Verifies that when the cache is under space pressure, dirty (unwritten)
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# files are not evicted by the LRU policy. Clean cached files may be
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# evicted, but dirty files must survive.
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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source "$SCRIPT_DIR/../harness/helpers.sh"
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source "$SCRIPT_DIR/../harness/mock-nas.sh"
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require_root
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setup_test_env
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trap teardown_test_env EXIT
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# Start mock NAS and pre-create 5 x 1 MB files for LRU pressure
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start_mock_nas
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for i in $(seq 1 5); do
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nas_create_file "filler-${i}.bin" 1024
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done
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# Generate config with small cache (5 MB) and a very long write-back
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# so dirty files remain dirty throughout the test
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gen_config cache_max_size=5M write_back=300s
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# Start warpgate and wait for readiness
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start_warpgate
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wait_for_mount
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wait_for_rc_api
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# Sever the network BEFORE writing the dirty file to prevent write-back
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# from racing with LRU eviction — the file must stay dirty throughout.
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inject_network_down
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# Write a 1 MB dirty file through the mount (stays dirty due to 300s delay
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# AND network being down, so write-back cannot succeed)
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dd if=/dev/urandom bs=1K count=1024 2>/dev/null | \
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dd of="$TEST_MOUNT/important-edit.bin" bs=1K 2>/dev/null
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# Allow VFS to register the dirty write
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sleep 2
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# Confirm the file is dirty
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dirty_before=$(get_dirty_count)
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if [[ "$dirty_before" -lt 1 ]]; then
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echo "FAIL: expected dirty count > 0 after write, got $dirty_before" >&2
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exit 1
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fi
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# Now read the 5 x 1 MB filler files through the mount to create LRU
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# pressure. With a 5 MB cache limit, evictions must happen, but the
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# dirty file should be protected.
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for i in $(seq 1 5); do
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cat "$TEST_MOUNT/filler-${i}.bin" > /dev/null
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done
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# Allow time for LRU eviction to run
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sleep 3
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# The dirty file must still be present and dirty
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dirty_after=$(get_dirty_count)
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if [[ "$dirty_after" -lt 1 ]]; then
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echo "FAIL: dirty file was evicted; dirty count dropped to $dirty_after" >&2
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exit 1
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fi
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# Verify the dirty file is still readable through the mount
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if [[ ! -f "$TEST_MOUNT/important-edit.bin" ]]; then
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echo "FAIL: dirty file no longer accessible through mount" >&2
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inject_network_up
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exit 1
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fi
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# Verify the dirty file physically remains in the on-disk cache
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assert_cached "important-edit.bin"
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# Restore network for clean teardown
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inject_network_up
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echo "PASS: $(basename "$0" .sh)"
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