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strix-halo-optimizations/tests/benchmark_compare.bats
Felipe Cardoso e9cb5c491f fix+test: improve test suite, fix 2 bugs found by tests 
Bugs fixed in production code:
- compare.sh: Python truthiness on 0.0 — `if b_val` was False for 0.0 t/s,
  displaying it as a dash instead of "0.0". Fixed with `is not None` checks.
- compare.sh: ZeroDivisionError when computing delta % with 0.0 baseline.

Test improvements (review findings):
- detect.bats: kernel param tests now use real detect_kernel_param logic
  pattern (not a separate reimplementation). Added non-GiB-aligned RAM test,
  device ID without 0x prefix, empty firmware version, llama-bench detection,
  detect_total_physical_ram_kb tests.
- benchmark_compare.bats: assert delta percentages (+20.0%, -25.0%, 0.0%),
  test 0.0 t/s edge case, test per-directory error messages, test config
  change detection with specific field assertions.
- log_metrics.bats: add assert_success, --help test, timestamp format
  validation. Remove unused mock sysfs setup.
- common.bats: fix data_dir test, remove redundant assertion, add cleanup.
- test_helper.sh: remove unused FIXTURES_DIR.
- Remove empty tests/fixtures/ directory.

94 tests, all passing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-25 22:22:41 +01:00

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#!/usr/bin/env bats
# Tests for scripts/benchmark/compare.sh — result comparison logic
load test_helper.sh
setup() {
source_lib common.sh
source_lib format.sh
BEFORE_DIR="$(mktemp -d)"
AFTER_DIR="$(mktemp -d)"
}
teardown() {
rm -rf "$BEFORE_DIR" "$AFTER_DIR"
}
write_summary() {
local dir="$1" json="$2"
echo "$json" > "$dir/summary.json"
}
write_system_state() {
local dir="$1" json="$2"
echo "$json" > "$dir/system-state.json"
}
_make_state() { echo '{"memory":{"vram_total_bytes":0},"kernel":{"param_iommu":"","param_gttsize":"","param_pages_limit":""},"tuned_profile":""}'; }
# ── Basic ────────────────────────────────────────────────
@test "compare: shows usage when called without args" {
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh"
assert_failure
assert_output --partial "Usage"
}
@test "compare: fails when summary.json missing in before dir" {
write_summary "$AFTER_DIR" '{"results":[]}'
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_failure
assert_output --partial "No summary.json"
# Should mention the actual directory
assert_output --partial "$BEFORE_DIR"
}
@test "compare: fails when summary.json missing in after dir" {
write_summary "$BEFORE_DIR" '{"results":[]}'
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_failure
assert_output --partial "No summary.json"
assert_output --partial "$AFTER_DIR"
}
@test "compare: handles empty results gracefully" {
write_summary "$BEFORE_DIR" '{"results":[]}'
write_summary "$AFTER_DIR" '{"results":[]}'
write_system_state "$BEFORE_DIR" "$(_make_state)"
write_system_state "$AFTER_DIR" "$(_make_state)"
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
assert_output --partial "No comparable results"
}
# ── Delta computation ────────────────────────────────────
@test "compare: shows positive delta for improvement" {
write_summary "$BEFORE_DIR" '{"results":[{"model":"qwen3","backend":"Vulkan","test":"pp512","tokens_per_sec":500.0,"file":"t.log","size":"4GB","raw":"500.0"}]}'
write_summary "$AFTER_DIR" '{"results":[{"model":"qwen3","backend":"Vulkan","test":"pp512","tokens_per_sec":600.0,"file":"t.log","size":"4GB","raw":"600.0"}]}'
write_system_state "$BEFORE_DIR" "$(_make_state)"
write_system_state "$AFTER_DIR" "$(_make_state)"
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
assert_output --partial "500.0"
assert_output --partial "600.0"
assert_output --partial "+20.0%"
}
@test "compare: shows negative delta for regression" {
write_summary "$BEFORE_DIR" '{"results":[{"model":"m","backend":"b","test":"tg128","tokens_per_sec":20.0,"file":"f","size":"s","raw":"20.0"}]}'
write_summary "$AFTER_DIR" '{"results":[{"model":"m","backend":"b","test":"tg128","tokens_per_sec":15.0,"file":"f","size":"s","raw":"15.0"}]}'
write_system_state "$BEFORE_DIR" "$(_make_state)"
write_system_state "$AFTER_DIR" "$(_make_state)"
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
assert_output --partial "-25.0%"
}
@test "compare: shows 0.0% delta when values are identical" {
write_summary "$BEFORE_DIR" '{"results":[{"model":"m","backend":"b","test":"pp512","tokens_per_sec":100.0,"file":"f","size":"s","raw":"100.0"}]}'
write_summary "$AFTER_DIR" '{"results":[{"model":"m","backend":"b","test":"pp512","tokens_per_sec":100.0,"file":"f","size":"s","raw":"100.0"}]}'
write_system_state "$BEFORE_DIR" "$(_make_state)"
write_system_state "$AFTER_DIR" "$(_make_state)"
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
assert_output --partial "0.0%"
}
@test "compare: handles 0.0 tokens/sec correctly (not displayed as dash)" {
write_summary "$BEFORE_DIR" '{"results":[{"model":"m","backend":"b","test":"pp512","tokens_per_sec":0.0,"file":"f","size":"s","raw":"0.0"}]}'
write_summary "$AFTER_DIR" '{"results":[{"model":"m","backend":"b","test":"pp512","tokens_per_sec":10.0,"file":"f","size":"s","raw":"10.0"}]}'
write_system_state "$BEFORE_DIR" "$(_make_state)"
write_system_state "$AFTER_DIR" "$(_make_state)"
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
# 0.0 should appear as a number, not as a dash
assert_output --partial "0.0"
refute_output --partial "—"
}
@test "compare: result only in before shows dash for after" {
write_summary "$BEFORE_DIR" '{"results":[{"model":"m","backend":"b","test":"pp512","tokens_per_sec":100.0,"file":"f","size":"s","raw":"100.0"}]}'
write_summary "$AFTER_DIR" '{"results":[]}'
write_system_state "$BEFORE_DIR" "$(_make_state)"
write_system_state "$AFTER_DIR" "$(_make_state)"
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
assert_output --partial "100.0"
}
# ── Config change detection ──────────────────────────────
@test "compare: detects VRAM change between runs" {
write_summary "$BEFORE_DIR" '{"results":[{"model":"m","backend":"b","test":"t","tokens_per_sec":1.0,"file":"f","size":"s","raw":"1.0"}]}'
write_summary "$AFTER_DIR" '{"results":[{"model":"m","backend":"b","test":"t","tokens_per_sec":2.0,"file":"f","size":"s","raw":"2.0"}]}'
write_system_state "$BEFORE_DIR" '{"memory":{"vram_total_bytes":34359738368},"kernel":{"param_iommu":"","param_gttsize":"","param_pages_limit":""},"tuned_profile":"throughput-performance"}'
write_system_state "$AFTER_DIR" '{"memory":{"vram_total_bytes":536870912},"kernel":{"param_iommu":"pt","param_gttsize":"61440","param_pages_limit":"15728640"},"tuned_profile":"accelerator-performance"}'
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
assert_output --partial "Configuration changes"
assert_output --partial "VRAM"
assert_output --partial "tuned"
}
@test "compare: no config changes when states match" {
local state='{"memory":{"vram_total_bytes":536870912},"kernel":{"param_iommu":"pt","param_gttsize":"61440","param_pages_limit":"15728640"},"tuned_profile":"accelerator-performance"}'
write_summary "$BEFORE_DIR" '{"results":[{"model":"m","backend":"b","test":"t","tokens_per_sec":1.0,"file":"f","size":"s","raw":"1.0"}]}'
write_summary "$AFTER_DIR" '{"results":[{"model":"m","backend":"b","test":"t","tokens_per_sec":1.0,"file":"f","size":"s","raw":"1.0"}]}'
write_system_state "$BEFORE_DIR" "$state"
write_system_state "$AFTER_DIR" "$state"
run bash "$PROJECT_ROOT/scripts/benchmark/compare.sh" "$BEFORE_DIR" "$AFTER_DIR"
assert_success
assert_output --partial "No configuration changes"
}
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