Files
BitLogger/bitlogger/BitLogger_test.mbt
T
2026-05-10 13:41:23 +08:00

583 lines
21 KiB
MoonBit

test "level filter works" {
let logger = Logger::new(console_sink(), min_level=Level::Warn, target="test")
inspect(logger.is_enabled(Level::Error), content="true")
inspect(logger.is_enabled(Level::Info), content="false")
}
test "context sink merges fields" {
let logger = Logger::new(console_sink(), min_level=Level::Info, target="ctx")
.with_context_fields([field("service", "bitlogger")])
let merged = [field("service", "bitlogger"), field("mode", "test")]
inspect(merged.length(), content="2")
inspect(merged[0].key, content="service")
inspect(merged[1].key, content="mode")
logger.info("hello", fields=[field("mode", "test")])
}
test "fields helper builds field arrays ergonomically" {
let items = fields([("service", "bitlogger"), ("mode", "test")])
inspect(items.length(), content="2")
inspect(items[0].key, content="service")
inspect(items[0].value, content="bitlogger")
inspect(items[1].key, content="mode")
inspect(items[1].value, content="test")
}
test "fanout sink can write to plain and json outputs" {
let logger = Logger::new(
fanout_sink(console_sink(), json_console_sink()),
min_level=Level::Info,
target="fanout",
)
inspect(logger.is_enabled(Level::Info), content="true")
logger.info("hello", fields=[field("kind", "dual")])
}
test "child logger composes target path" {
let logger = Logger::new(console_sink(), min_level=Level::Info, target="app")
.child("worker")
inspect(logger.target, content="app.worker")
}
test "logger config parser reads core options" {
let config = parse_logger_config_text(
"{\"min_level\":\"debug\",\"target\":\"service\",\"timestamp\":true}",
)
inspect(config.min_level.label(), content="DEBUG")
inspect(config.target, content="service")
inspect(config.timestamp, content="true")
}
test "logger config parser reads formatter and queue options" {
let config = parse_logger_config_text(
"{\"sink\":{\"kind\":\"text_console\",\"text_formatter\":{\"separator\":\" | \",\"show_timestamp\":false,\"template\":\"[{level}] {message}\"}},\"queue\":{\"max_pending\":32,\"overflow\":\"DropOldest\"}}",
)
inspect(match config.sink.kind {
SinkKind::TextConsole => "TextConsole"
_ => "other"
}, content="TextConsole")
inspect(config.sink.text_formatter.separator, content=" | ")
inspect(config.sink.text_formatter.show_timestamp, content="false")
inspect(config.sink.text_formatter.template, content="[{level}] {message}")
match config.queue {
Some(queue) => {
inspect(queue.max_pending, content="32")
inspect(match queue.overflow {
QueueOverflowPolicy::DropNewest => "DropNewest"
QueueOverflowPolicy::DropOldest => "DropOldest"
}, content="DropOldest")
}
None => inspect(false, content="true")
}
}
test "logger config parser reads file rotation options" {
let config = parse_logger_config_text(
"{\"sink\":{\"kind\":\"file\",\"path\":\"bitlogger.log\",\"rotation\":{\"max_bytes\":128,\"max_backups\":3}}}",
)
inspect(match config.sink.kind {
SinkKind::File => "File"
_ => "other"
}, content="File")
inspect(config.sink.path, content="bitlogger.log")
match config.sink.rotation {
Some(rotation) => {
inspect(rotation.max_bytes, content="128")
inspect(rotation.max_backups, content="3")
}
None => inspect(false, content="true")
}
}
test "logger config stringify roundtrips stable fields" {
let text = stringify_logger_config(
LoggerConfig::new(
min_level=Level::Warn,
target="api",
timestamp=true,
sink=SinkConfig::new(
kind=SinkKind::TextConsole,
text_formatter=TextFormatterConfig::new(
show_timestamp=false,
show_level=true,
show_target=true,
show_fields=true,
separator=" | ",
field_separator=",",
template="[{level}] {target} {message}",
),
),
queue=Some(QueueConfig::new(8, overflow=QueueOverflowPolicy::DropNewest)),
),
)
let config = parse_logger_config_text(text)
inspect(config.min_level.label(), content="WARN")
inspect(config.target, content="api")
inspect(config.timestamp, content="true")
inspect(config.sink.text_formatter.separator, content=" | ")
inspect(config.sink.text_formatter.template, content="[{level}] {target} {message}")
}
test "logger config stringify roundtrips file rotation fields" {
let text = stringify_logger_config(
LoggerConfig::new(
sink=SinkConfig::new(
kind=SinkKind::File,
path="bitlogger.log",
rotation=Some(file_rotation(256, max_backups=2)),
),
),
)
let config = parse_logger_config_text(text)
inspect(config.sink.path, content="bitlogger.log")
match config.sink.rotation {
Some(rotation) => {
inspect(rotation.max_bytes, content="256")
inspect(rotation.max_backups, content="2")
}
None => inspect(false, content="true")
}
}
test "build logger from config supports queued text console" {
let logger = build_logger(
LoggerConfig::new(
min_level=Level::Debug,
target="config.runtime",
timestamp=true,
sink=SinkConfig::new(
kind=SinkKind::TextConsole,
text_formatter=TextFormatterConfig::new(show_timestamp=false, separator=" | "),
),
queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropOldest)),
),
)
logger.info("one")
logger.info("two")
logger.info("three")
inspect(logger.pending_count(), content="2")
inspect(logger.flush(), content="2")
}
test "configured logger drain supports partial queue draining" {
let logger = build_logger(
LoggerConfig::new(
min_level=Level::Info,
target="config.partial",
sink=SinkConfig::new(kind=SinkKind::Console),
queue=Some(QueueConfig::new(4, overflow=QueueOverflowPolicy::DropNewest)),
),
)
logger.info("one")
logger.info("two")
logger.info("three")
inspect(logger.pending_count(), content="3")
inspect(logger.drain(max_items=2), content="2")
inspect(logger.pending_count(), content="1")
inspect(logger.flush(), content="1")
}
test "configured logger reports dropped_count for bounded queue" {
let logger = build_logger(
LoggerConfig::new(
min_level=Level::Info,
target="config.drop",
sink=SinkConfig::new(kind=SinkKind::TextConsole),
queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropOldest)),
),
)
logger.info("one")
logger.info("two")
logger.info("three")
logger.info("four")
inspect(logger.pending_count(), content="2")
inspect(logger.dropped_count(), content="2")
inspect(logger.flush(), content="2")
}
test "configured logger exposes file sink observability helpers" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(
kind=SinkKind::File,
path="config-file.log",
auto_flush=false,
rotation=Some(file_rotation(64, max_backups=3)),
),
),
)
let state = logger.file_state()
let runtime_state = logger.file_runtime_state()
inspect(logger.file_available() == native_files_supported(), content="true")
inspect(logger.file_path(), content="config-file.log")
inspect(state.path, content="config-file.log")
inspect(state.available == logger.file_available(), content="true")
inspect(state.append == logger.file_append_mode(), content="true")
inspect(state.auto_flush == logger.file_auto_flush(), content="true")
inspect(logger.file_append_mode(), content="true")
inspect(logger.file_auto_flush(), content="false")
match runtime_state {
Some(snapshot) => {
inspect(snapshot.queued, content="false")
inspect(snapshot.pending_count, content="0")
inspect(snapshot.dropped_count, content="0")
inspect(snapshot.file.path, content="config-file.log")
}
None => inspect(false, content="true")
}
inspect(logger.file_rotation_enabled(), content="true")
match logger.file_rotation_config() {
Some(rotation) => {
inspect(rotation.max_bytes, content="64")
inspect(rotation.max_backups, content="3")
}
None => inspect(false, content="true")
}
inspect(logger.file_open_failures(), content=if logger.file_available() { "0" } else { "1" })
inspect(logger.file_write_failures(), content="0")
inspect(logger.file_flush_failures(), content="0")
inspect(logger.file_rotation_failures(), content="0")
ignore(logger.close())
}
test "file state json helpers stringify stable snapshots" {
let plain = file_sink_state_to_json(
FileSinkState::new(
"demo.log",
available=true,
append=false,
auto_flush=true,
rotation=Some(file_rotation(64, max_backups=2)),
open_failures=1,
write_failures=2,
flush_failures=3,
rotation_failures=4,
),
)
inspect(
@json_parser.stringify(plain),
content="{\"append\":false,\"auto_flush\":true,\"available\":true,\"flush_failures\":3,\"open_failures\":1,\"path\":\"demo.log\",\"rotation\":{\"max_backups\":2,\"max_bytes\":64},\"rotation_failures\":4,\"write_failures\":2}",
)
inspect(
stringify_file_sink_state(
FileSinkState::new(
"plain.log",
available=false,
append=true,
auto_flush=false,
rotation=None,
open_failures=0,
write_failures=0,
flush_failures=0,
rotation_failures=0,
),
),
content="{\"append\":true,\"auto_flush\":false,\"available\":false,\"flush_failures\":0,\"open_failures\":0,\"path\":\"plain.log\",\"rotation\":null,\"rotation_failures\":0,\"write_failures\":0}",
)
}
test "runtime file state json helpers stringify queue snapshots" {
let json = stringify_runtime_file_state(
RuntimeFileState::new(
FileSinkState::new(
"queue.log",
available=true,
append=true,
auto_flush=false,
rotation=None,
open_failures=0,
write_failures=1,
flush_failures=2,
rotation_failures=3,
),
queued=true,
pending_count=7,
dropped_count=5,
),
)
inspect(
json,
content="{\"dropped_count\":5,\"file\":{\"append\":true,\"auto_flush\":false,\"available\":true,\"flush_failures\":2,\"open_failures\":0,\"path\":\"queue.log\",\"rotation\":null,\"rotation_failures\":3,\"write_failures\":1},\"pending_count\":7,\"queued\":true}",
)
}
test "file sink policy json helpers stringify stable policies" {
inspect(
@json_parser.stringify(
file_sink_policy_to_json(
FileSinkPolicy::new(
append=false,
auto_flush=true,
rotation=Some(file_rotation(96, max_backups=3)),
),
),
),
content="{\"append\":false,\"auto_flush\":true,\"rotation\":{\"max_backups\":3,\"max_bytes\":96}}",
)
inspect(
stringify_file_sink_policy(
FileSinkPolicy::new(append=true, auto_flush=false, rotation=None),
),
content="{\"append\":true,\"auto_flush\":false,\"rotation\":null}",
)
}
test "configured logger reports disabled rotation when file sink has none" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="config-no-rotation.log"),
),
)
inspect(logger.file_rotation_enabled(), content="false")
inspect(logger.file_rotation_config() is None, content="true")
match logger.file_runtime_state() {
Some(snapshot) => inspect(snapshot.queued, content="false")
None => inspect(false, content="true")
}
ignore(logger.close())
}
test "configured non-file logger has no file runtime state" {
let logger = build_logger(
LoggerConfig::new(sink=SinkConfig::new(kind=SinkKind::Console)),
)
inspect(logger.file_runtime_state() is None, content="true")
}
test "configured logger file setters update file sink policy state" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="config-setters.log"),
queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropNewest)),
),
)
let default_policy = logger.file_default_policy()
inspect(logger.file_append_mode(), content="true")
inspect(logger.file_auto_flush(), content="true")
inspect(logger.file_rotation_enabled(), content="false")
inspect(default_policy.append, content="true")
inspect(default_policy.auto_flush, content="true")
inspect(default_policy.rotation is None, content="true")
inspect(logger.file_policy_matches_default(), content="true")
inspect(logger.file_set_append_mode(false), content="true")
inspect(logger.file_append_mode(), content="false")
inspect(logger.file_set_auto_flush(false), content="true")
inspect(logger.file_auto_flush(), content="false")
inspect(logger.file_set_rotation(Some(file_rotation(48, max_backups=4))), content="true")
inspect(logger.file_rotation_enabled(), content="true")
match logger.file_rotation_config() {
Some(rotation) => {
inspect(rotation.max_bytes, content="48")
inspect(rotation.max_backups, content="4")
}
None => inspect(false, content="true")
}
inspect(logger.file_clear_rotation(), content="true")
inspect(logger.file_rotation_enabled(), content="false")
inspect(logger.file_rotation_config() is None, content="true")
inspect(logger.file_reopen(), content=if logger.file_available() { "true" } else { "false" })
inspect(logger.file_append_mode(), content="false")
let state = logger.file_state()
let policy = logger.file_policy()
inspect(state.append, content="false")
inspect(state.auto_flush, content="false")
inspect(state.rotation is None, content="true")
inspect(policy.append, content="false")
inspect(policy.auto_flush, content="false")
inspect(policy.rotation is None, content="true")
inspect(logger.file_policy_matches_default(), content="false")
inspect(logger.file_reset_policy(), content="true")
inspect(logger.file_append_mode(), content="true")
inspect(logger.file_auto_flush(), content="true")
inspect(logger.file_rotation_config() is None, content="true")
inspect(logger.file_policy_matches_default(), content="true")
ignore(logger.close())
}
test "configured logger reset policy restores configured file defaults" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(
kind=SinkKind::File,
path="config-reset-policy.log",
append=false,
auto_flush=false,
rotation=Some(file_rotation(36, max_backups=2)),
),
),
)
let default_policy = logger.file_default_policy()
inspect(default_policy.append, content="false")
inspect(default_policy.auto_flush, content="false")
inspect(logger.file_policy_matches_default(), content="true")
inspect(logger.file_set_append_mode(true), content="true")
inspect(logger.file_set_auto_flush(true), content="true")
inspect(logger.file_clear_rotation(), content="true")
inspect(logger.file_reset_policy(), content="true")
inspect(logger.file_append_mode(), content="false")
inspect(logger.file_auto_flush(), content="false")
inspect(logger.file_policy_matches_default(), content="true")
match logger.file_rotation_config() {
Some(rotation) => {
inspect(rotation.max_bytes, content="36")
inspect(rotation.max_backups, content="2")
}
None => inspect(false, content="true")
}
ignore(logger.close())
}
test "configured logger set policy applies bundled runtime file policy" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="config-set-policy.log"),
),
)
let default_policy = logger.file_default_policy()
inspect(
logger.file_set_policy(
FileSinkPolicy::new(
append=false,
auto_flush=false,
rotation=Some(file_rotation(22, max_backups=3)),
),
),
content="true",
)
let policy = logger.file_policy()
inspect(policy.append, content="false")
inspect(policy.auto_flush, content="false")
match policy.rotation {
Some(rotation) => {
inspect(rotation.max_bytes, content="22")
inspect(rotation.max_backups, content="3")
}
None => inspect(false, content="true")
}
inspect(default_policy.append, content="true")
inspect(default_policy.auto_flush, content="true")
inspect(default_policy.rotation is None, content="true")
inspect(logger.file_policy_matches_default(), content="false")
ignore(logger.close())
}
test "configured non-file logger cannot reset file policy" {
let logger = build_logger(LoggerConfig::new(sink=SinkConfig::new(kind=SinkKind::Console)))
inspect(logger.file_reset_policy(), content="false")
inspect(logger.file_policy().append, content="false")
inspect(logger.file_default_policy().append, content="false")
inspect(logger.file_set_policy(FileSinkPolicy::new()), content="false")
inspect(logger.file_policy_matches_default(), content="false")
}
test "configured logger can reopen built file sink" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="config-reopen.log"),
),
)
if logger.file_available() {
inspect(logger.close(), content="true")
inspect(logger.file_reopen_append(), content="true")
inspect(logger.file_available(), content="true")
inspect(logger.file_append_mode(), content="true")
inspect(logger.file_open_failures(), content="0")
logger.info("reopened from config")
inspect(logger.file_write_failures(), content="0")
inspect(logger.file_reopen_truncate(), content="true")
inspect(logger.file_append_mode(), content="false")
inspect(logger.file_reopen(), content="true")
inspect(logger.file_append_mode(), content="false")
inspect(logger.file_reopen_with_current_policy(), content="true")
inspect(logger.file_append_mode(), content="false")
inspect(logger.file_reopen_append(), content="true")
inspect(logger.file_append_mode(), content="true")
inspect(logger.file_reset_failure_counters(), content="true")
inspect(logger.file_open_failures(), content="0")
inspect(logger.file_write_failures(), content="0")
inspect(logger.file_flush_failures(), content="0")
inspect(logger.file_rotation_failures(), content="0")
inspect(logger.close(), content="true")
} else {
inspect(logger.file_append_mode(), content="true")
inspect(logger.file_open_failures(), content="1")
logger.info("dropped")
inspect(logger.file_write_failures(), content="1")
inspect(logger.file_reopen_append(), content="false")
inspect(logger.file_open_failures(), content="2")
inspect(logger.file_reopen_truncate(), content="false")
inspect(logger.file_append_mode(), content="false")
inspect(logger.file_reopen_with_current_policy(), content="false")
inspect(logger.file_open_failures(), content="3")
inspect(logger.file_reopen_append(), content="false")
inspect(logger.file_append_mode(), content="true")
inspect(logger.file_open_failures(), content="4")
inspect(logger.file_reset_failure_counters(), content="true")
inspect(logger.file_open_failures(), content="0")
inspect(logger.file_write_failures(), content="0")
inspect(logger.file_flush_failures(), content="0")
inspect(logger.file_rotation_failures(), content="0")
}
}
test "configured non-file logger cannot reset file failure counters" {
let logger = build_logger(LoggerConfig::new(sink=SinkConfig::new(kind=SinkKind::Console)))
inspect(logger.file_reset_failure_counters(), content="false")
}
test "configured logger exposes file flush and close helpers" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="config-control.log"),
),
)
if logger.file_available() {
logger.info("before flush")
inspect(logger.file_flush(), content="true")
inspect(logger.file_close(), content="true")
inspect(logger.file_available(), content="false")
inspect(logger.file_flush(), content="false")
} else {
inspect(logger.file_flush(), content="false")
inspect(logger.file_close(), content="false")
}
}
test "configured queued file logger flushes queue through file helper" {
let logger = build_logger(
LoggerConfig::new(
sink=SinkConfig::new(kind=SinkKind::File, path="config-queued-file.log"),
queue=Some(QueueConfig::new(4, overflow=QueueOverflowPolicy::DropNewest)),
),
)
logger.info("one")
logger.info("two")
match logger.file_runtime_state() {
Some(snapshot) => {
inspect(snapshot.queued, content="true")
inspect(snapshot.pending_count, content="2")
inspect(snapshot.dropped_count, content="0")
}
None => inspect(false, content="true")
}
if logger.file_available() {
inspect(logger.pending_count(), content="2")
inspect(logger.file_flush(), content="true")
inspect(logger.pending_count(), content="0")
match logger.file_runtime_state() {
Some(snapshot) => inspect(snapshot.pending_count, content="0")
None => inspect(false, content="true")
}
inspect(logger.file_close(), content="true")
} else {
inspect(logger.pending_count(), content="2")
inspect(logger.file_flush(), content="false")
inspect(logger.pending_count(), content="0")
match logger.file_runtime_state() {
Some(snapshot) => inspect(snapshot.pending_count, content="0")
None => inspect(false, content="true")
}
inspect(logger.file_close(), content="false")
}
}