🧪 relocate test logs

logs/.gitkeep

@@ -0,0 +1 @@
+

src-async/BitLoggerAsync_test.mbt

@@ -2404,7 +2404,7 @@ async test "library async parse-build unwrap matches parsed direct async builder
 
 ///|
 async test "library async parse-build unwrap preserves file-backed runtime helpers" {
-  let raw = "{\"logger\":{\"min_level\":\"warn\",\"target\":\"async.lib.json.file.same-build\",\"queue\":{\"max_pending\":3,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"async-lib-json-file-same-build.log\"}},\"async_config\":{\"max_pending\":2,\"overflow\":\"DropOldest\",\"max_batch\":1,\"linger_ms\":0,\"flush\":\"Shutdown\"}}"
+  let raw = "{\"logger\":{\"min_level\":\"warn\",\"target\":\"async.lib.json.file.same-build\",\"queue\":{\"max_pending\":3,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"logs/async-lib-json-file-same-build.log\"}},\"async_config\":{\"max_pending\":2,\"overflow\":\"DropOldest\",\"max_batch\":1,\"linger_ms\":0,\"flush\":\"Shutdown\"}}"
   let logger = parse_and_build_library_async_logger(raw)
   let full = logger.to_async_logger()
   let direct = build_async_logger(parse_async_logger_build_config_text(raw))
@@ -2920,7 +2920,7 @@ test "library async text logger ignores sink kind and still uses text formatter"
         target="async.lib.text.kind",
         sink=@bitlogger.SinkConfig::new(
           kind=@bitlogger.SinkKind::File,
-          path="ignored.log",
+          path="logs/ignored.log",
           text_formatter=@bitlogger.TextFormatterConfig::new(
             show_timestamp=false,
             separator=" | ",
@@ -3233,7 +3233,7 @@ async test "async logger projection preserves file-backed runtime helpers throug
         target="async.projected.file",
         sink=@bitlogger.SinkConfig::new(
           kind=@bitlogger.SinkKind::File,
-          path="async-projected-file.log",
+          path="logs/async-projected-file.log",
         ),
         queue=Some(
           @bitlogger.QueueConfig::new(
@@ -3530,7 +3530,7 @@ async test "application async builder preserves file-backed runtime helpers" {
       target="async.app.file.same-build",
       sink=@bitlogger.SinkConfig::new(
         kind=@bitlogger.SinkKind::File,
-        path="async-app-file-same-build.log",
+        path="logs/async-app-file-same-build.log",
       ),
       queue=Some(
         @bitlogger.QueueConfig::new(
@@ -4384,7 +4384,7 @@ test "application text async logger ignores sink kind and still uses text format
         target="async.app.text.kind.alias",
         sink=@bitlogger.SinkConfig::new(
           kind=@bitlogger.SinkKind::File,
-          path="ignored.log",
+          path="logs/ignored.log",
           text_formatter=@bitlogger.TextFormatterConfig::new(
             show_timestamp=false,
             separator=" | ",
@@ -4462,7 +4462,7 @@ test "build async text logger ignores sink kind and still uses text formatter" {
         target="async.text.kind",
         sink=@bitlogger.SinkConfig::new(
           kind=@bitlogger.SinkKind::File,
-          path="ignored.log",
+          path="logs/ignored.log",
           text_formatter=@bitlogger.TextFormatterConfig::new(
             show_timestamp=false,
             separator=" | ",
@@ -4959,7 +4959,7 @@ async test "application async parse-build matches parsed direct async builder be
 
 ///|
 async test "application async parse-build preserves file-backed runtime helpers" {
-  let raw = "{\"logger\":{\"min_level\":\"warn\",\"target\":\"async.app.json.file.same-build\",\"queue\":{\"max_pending\":3,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"async-app-json-file-same-build.log\"}},\"async_config\":{\"max_pending\":2,\"overflow\":\"DropOldest\",\"max_batch\":1,\"linger_ms\":0,\"flush\":\"Shutdown\"}}"
+  let raw = "{\"logger\":{\"min_level\":\"warn\",\"target\":\"async.app.json.file.same-build\",\"queue\":{\"max_pending\":3,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"logs/async-app-json-file-same-build.log\"}},\"async_config\":{\"max_pending\":2,\"overflow\":\"DropOldest\",\"max_batch\":1,\"linger_ms\":0,\"flush\":\"Shutdown\"}}"
   let application = parse_and_build_application_async_logger(raw)
   let direct = build_async_logger(parse_async_logger_build_config_text(raw))
 

src/BitLogger_wbtest.mbt

@@ -1,6 +1,6 @@
 ///|
 test "file sink tracks rotation failures on unavailable backend" {
-  let path = "bitlogger-rotate.log"
+  let path = "logs/bitlogger-rotate.log"
   ignore(@utils.remove_file_internal(path))
   ignore(@utils.remove_file_internal(path + ".1"))
   let sink = file_sink(path, rotation=Some(file_rotation(1, max_backups=1)))
@@ -19,7 +19,7 @@ test "file sink tracks rotation failures on unavailable backend" {
 
 ///|
 test "file sink reopen and failure counters reflect backend state" {
-  let sink = file_sink("bitlogger-reopen.log")
+  let sink = file_sink("logs/bitlogger-reopen.log")
   if sink.is_available() {
     inspect(sink.append_mode(), content="true")
     inspect(sink.open_failures(), content="0")
@@ -45,7 +45,7 @@ test "file sink reopen and failure counters reflect backend state" {
     inspect(sink.flush_failures(), content="0")
     inspect(sink.rotation_failures(), content="0")
     inspect(sink.close(), content="true")
-    ignore(@utils.remove_file_internal("bitlogger-reopen.log"))
+    ignore(@utils.remove_file_internal("logs/bitlogger-reopen.log"))
   } else {
     inspect(sink.append_mode(), content="true")
     inspect(sink.open_failures(), content="1")
@@ -71,7 +71,7 @@ test "file sink reopen and failure counters reflect backend state" {
 
 ///|
 test "file sink can rotate on native backend" {
-  let path = "bitlogger-rotate-native.log"
+  let path = "logs/bitlogger-rotate-native.log"
   ignore(@utils.remove_file_internal(path))
   ignore(@utils.remove_file_internal(path + ".1"))
   ignore(@utils.remove_file_internal(path + ".2"))
@@ -109,7 +109,7 @@ test "file sink can rotate on native backend" {
 ///|
 #cfg(platform="windows")
 test "file sink rotation failure counts partial backup-chain failure on native backend" {
-  let path = "bitlogger-rotate-partial-failure.log"
+  let path = "logs/bitlogger-rotate-partial-failure.log"
   ignore(@utils.remove_file_internal(path))
   ignore(@utils.remove_file_internal(path + ".1"))
   ignore(@utils.remove_file_internal(path + ".2"))

src/application_logger_facade_test.mbt

@@ -81,7 +81,7 @@ test "application logger keeps configured runtime helper surface" {
     LoggerConfig::new(
       min_level=Level::Warn,
       target="app.alias.helpers",
-      sink=SinkConfig::new(kind=SinkKind::File, path="app-alias.log"),
+      sink=SinkConfig::new(kind=SinkKind::File, path="logs/app-alias.log"),
       queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropOldest)),
     ),
   )
@@ -229,7 +229,10 @@ test "application logger file helpers match direct configured builder behavior"
   let config = LoggerConfig::new(
     min_level=Level::Warn,
     target="app.file.same-build",
-    sink=SinkConfig::new(kind=SinkKind::File, path="app-file-same-build.log"),
+    sink=SinkConfig::new(
+      kind=SinkKind::File,
+      path="logs/app-file-same-build.log",
+    ),
     queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropOldest)),
   )
   let application = build_application_logger(config)
@@ -344,7 +347,7 @@ test "application logger file controls match direct configured builder behavior"
     target="app.file.controls.same-build",
     sink=SinkConfig::new(
       kind=SinkKind::File,
-      path="app-file-controls-same-build.log",
+      path="logs/app-file-controls-same-build.log",
     ),
   )
   let application = build_application_logger(config)

src/configured_file_controls_parity_test.mbt

@@ -5,7 +5,7 @@ test "configured logger file setters stay aligned with runtime sink setters" {
       target="config.file.setters.delegate",
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-file-setters-delegate.log",
+        path="logs/config-file-setters-delegate.log",
       ),
     ),
   )
@@ -100,7 +100,7 @@ test "configured logger file reopen helpers stay aligned with runtime sink helpe
     LoggerConfig::new(
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-reopen-delegate.log",
+        path="logs/config-reopen-delegate.log",
       ),
     ),
   )
@@ -174,7 +174,7 @@ test "configured logger file reset helpers stay aligned with runtime sink helper
     LoggerConfig::new(
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-reset-delegate.log",
+        path="logs/config-reset-delegate.log",
         append=false,
         auto_flush=false,
         rotation=Some(file_rotation(40, max_backups=2)),

src/configured_file_controls_test.mbt

@@ -2,7 +2,7 @@
 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"),
+      sink=SinkConfig::new(kind=SinkKind::File, path="logs/config-setters.log"),
       queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropNewest)),
     ),
   )
@@ -61,7 +61,7 @@ test "configured logger reset policy restores configured file defaults" {
     LoggerConfig::new(
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-reset-policy.log",
+        path="logs/config-reset-policy.log",
         append=false,
         auto_flush=false,
         rotation=Some(file_rotation(36, max_backups=2)),
@@ -93,7 +93,10 @@ test "configured logger reset policy restores configured file defaults" {
 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"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/config-set-policy.log",
+      ),
     ),
   )
   let default_policy = logger.file_default_policy()
@@ -140,7 +143,7 @@ test "configured non-file logger cannot reset file policy" {
 test "configured logger can reopen built file sink" {
   let logger = build_logger(
     LoggerConfig::new(
-      sink=SinkConfig::new(kind=SinkKind::File, path="config-reopen.log"),
+      sink=SinkConfig::new(kind=SinkKind::File, path="logs/config-reopen.log"),
     ),
   )
   if logger.file_available() {
@@ -199,7 +202,7 @@ test "configured non-file logger cannot reset file failure counters" {
 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"),
+      sink=SinkConfig::new(kind=SinkKind::File, path="logs/config-control.log"),
     ),
   )
   if logger.file_available() {
@@ -218,7 +221,10 @@ test "configured logger exposes file flush and close helpers" {
 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"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/config-queued-file.log",
+      ),
       queue=Some(QueueConfig::new(4, overflow=QueueOverflowPolicy::DropNewest)),
     ),
   )
@@ -257,7 +263,10 @@ test "configured queued file logger flushes queue through file helper" {
 test "configured queued file logger blocks policy mutation while queue is pending" {
   let logger = build_logger(
     LoggerConfig::new(
-      sink=SinkConfig::new(kind=SinkKind::File, path="config-queued-policy.log"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/config-queued-policy.log",
+      ),
       queue=Some(QueueConfig::new(4, overflow=QueueOverflowPolicy::DropNewest)),
     ),
   )
@@ -293,7 +302,10 @@ test "configured queued file logger blocks policy mutation while queue is pendin
 test "configured queued file logger close drains queue before teardown" {
   let logger = build_logger(
     LoggerConfig::new(
-      sink=SinkConfig::new(kind=SinkKind::File, path="config-close-queued.log"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/config-close-queued.log",
+      ),
       queue=Some(QueueConfig::new(4, overflow=QueueOverflowPolicy::DropNewest)),
     ),
   )

src/configured_file_observability_parity_test.mbt

@@ -3,7 +3,10 @@ test "configured logger file observation helpers stay aligned with runtime sink
   let file_logger = build_logger(
     LoggerConfig::new(
       target="config.file.delegate",
-      sink=SinkConfig::new(kind=SinkKind::File, path="config-file-delegate.log"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/config-file-delegate.log",
+      ),
     ),
   )
   let file_sink = file_logger.sink
@@ -74,7 +77,7 @@ test "configured logger file policy helpers stay aligned with runtime sink helpe
       target="config.file.policy.delegate",
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-file-policy-delegate.log",
+        path="logs/config-file-policy-delegate.log",
         append=false,
         auto_flush=true,
         rotation=Some(file_rotation(64, max_backups=2)),
@@ -213,7 +216,7 @@ test "configured logger file flush and close stay aligned with runtime sink help
   let file_config = LoggerConfig::new(
     sink=SinkConfig::new(
       kind=SinkKind::File,
-      path="config-file-helper-delegate.log",
+      path="logs/config-file-helper-delegate.log",
     ),
   )
   let file_logger = build_logger(file_config)
@@ -245,7 +248,7 @@ test "configured logger file state helpers stay aligned with runtime sink helper
       target="config.file.state.delegate",
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-file-state-delegate.log",
+        path="logs/config-file-state-delegate.log",
       ),
     ),
   )
@@ -297,7 +300,7 @@ test "configured logger file state helpers stay aligned with runtime sink helper
       target="config.file.runtime.delegate",
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-file-runtime-delegate.log",
+        path="logs/config-file-runtime-delegate.log",
       ),
       queue=Some(QueueConfig::new(4, overflow=QueueOverflowPolicy::DropNewest)),
     ),

src/configured_file_observability_test.mbt

@@ -4,7 +4,7 @@ test "configured logger exposes file sink observability helpers" {
     LoggerConfig::new(
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="config-file.log",
+        path="logs/config-file.log",
         auto_flush=false,
         rotation=Some(file_rotation(64, max_backups=3)),
       ),
@@ -13,8 +13,8 @@ test "configured logger exposes file sink observability helpers" {
   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(logger.file_path(), content="logs/config-file.log")
+  inspect(state.path, content="logs/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")
@@ -25,7 +25,7 @@ test "configured logger exposes file sink observability helpers" {
       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")
+      inspect(snapshot.file.path, content="logs/config-file.log")
     }
     None => inspect(false, content="true")
   }
@@ -51,7 +51,10 @@ test "configured logger exposes file sink observability helpers" {
 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"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/config-no-rotation.log",
+      ),
     ),
   )
   inspect(logger.file_rotation_enabled(), content="false")
@@ -79,12 +82,15 @@ test "configured non-file logger has no file runtime state" {
 test "configured file logger mirrors backend file capability" {
   let logger = build_logger(
     LoggerConfig::new(
-      sink=SinkConfig::new(kind=SinkKind::File, path="config-capability.log"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/config-capability.log",
+      ),
     ),
   )
   inspect(logger.file_available() == native_files_supported(), content="true")
   match logger.file_path_or_none() {
-    Some(path) => inspect(path, content="config-capability.log")
+    Some(path) => inspect(path, content="logs/config-capability.log")
     None => inspect(false, content="true")
   }
   inspect(logger.file_policy_or_none() is None, content="false")

src/configured_logger_facade_test.mbt

@@ -82,7 +82,10 @@ test "configured logger projection preserves file runtime helpers through unwrap
     LoggerConfig::new(
       min_level=Level::Warn,
       target="lib.projected.file",
-      sink=SinkConfig::new(kind=SinkKind::File, path="lib-projected-file.log"),
+      sink=SinkConfig::new(
+        kind=SinkKind::File,
+        path="logs/lib-projected-file.log",
+      ),
       queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropOldest)),
     ),
   )

src/file_sink_test.mbt

@@ -8,11 +8,11 @@ test "native file support flag is queryable" {
 
 ///|
 test "file sink availability reflects backend support" {
-  let sink = file_sink("bitlogger-test.log")
+  let sink = file_sink("logs/bitlogger-test.log")
   let state = sink.state()
-  inspect(sink.path(), content="bitlogger-test.log")
+  inspect(sink.path(), content="logs/bitlogger-test.log")
   inspect(sink.is_available() == native_files_supported(), content="true")
-  inspect(state.path, content="bitlogger-test.log")
+  inspect(state.path, content="logs/bitlogger-test.log")
   inspect(state.available == sink.is_available(), content="true")
   inspect(state.append == sink.append_mode(), content="true")
   inspect(state.auto_flush == sink.auto_flush_enabled(), content="true")
@@ -42,7 +42,7 @@ test "file sink availability reflects backend support" {
 ///|
 test "file sink unavailable backend keeps stable fallback state" {
   let sink = file_sink(
-    "bitlogger-unavailable.log",
+    "logs/bitlogger-unavailable.log",
     rotation=Some(file_rotation(64, max_backups=2)),
   )
   if sink.is_available() {
@@ -73,7 +73,10 @@ test "file sink rotation config normalizes invalid inputs" {
   let rotation = file_rotation(0, max_backups=0)
   inspect(rotation.max_bytes, content="1")
   inspect(rotation.max_backups, content="1")
-  let sink = file_sink("bitlogger-rotation-config.log", rotation=Some(rotation))
+  let sink = file_sink(
+    "logs/bitlogger-rotation-config.log",
+    rotation=Some(rotation),
+  )
   inspect(sink.rotation_enabled(), content="true")
   match sink.rotation_config() {
     Some(config) => {
@@ -97,7 +100,7 @@ test "file rotation i64 preserves wide threshold metadata" {
 
 ///|
 test "file sink setters update auto flush and rotation state" {
-  let sink = file_sink("bitlogger-setters.log")
+  let sink = file_sink("logs/bitlogger-setters.log")
   let default_policy = sink.default_policy()
   inspect(sink.append_mode(), content="true")
   inspect(sink.auto_flush_enabled(), content="true")
@@ -146,7 +149,7 @@ test "file sink setters update auto flush and rotation state" {
 ///|
 test "file sink reset policy restores configured defaults" {
   let sink = file_sink(
-    "bitlogger-reset-policy.log",
+    "logs/bitlogger-reset-policy.log",
     append=false,
     auto_flush=false,
     rotation=Some(file_rotation(24, max_backups=3)),
@@ -173,7 +176,7 @@ test "file sink reset policy restores configured defaults" {
 
 ///|
 test "file sink set policy applies bundled runtime policy" {
-  let sink = file_sink("bitlogger-set-policy.log")
+  let sink = file_sink("logs/bitlogger-set-policy.log")
   let default_policy = sink.default_policy()
   sink.set_policy(
     FileSinkPolicy::new(

src/library_logger_builder_test.mbt

@@ -164,7 +164,10 @@ test "library logger builder unwrap preserves file runtime helpers" {
   let config = LoggerConfig::new(
     min_level=Level::Warn,
     target="lib.file.same-build",
-    sink=SinkConfig::new(kind=SinkKind::File, path="lib-file-same-build.log"),
+    sink=SinkConfig::new(
+      kind=SinkKind::File,
+      path="logs/lib-file-same-build.log",
+    ),
     queue=Some(QueueConfig::new(2, overflow=QueueOverflowPolicy::DropOldest)),
   )
   let logger = build_library_logger(config)
@@ -236,7 +239,7 @@ test "library logger builder unwrap preserves file controls" {
     target="lib.file.controls.same-build",
     sink=SinkConfig::new(
       kind=SinkKind::File,
-      path="lib-file-controls-same-build.log",
+      path="logs/lib-file-controls-same-build.log",
     ),
   )
   let logger = build_library_logger(config)

src/logger_config_json_helpers_test.mbt

@@ -30,7 +30,7 @@ test "config subtype json helpers stringify stable shapes" {
     stringify_sink_config(
       SinkConfig::new(
         kind=SinkKind::File,
-        path="demo.log",
+        path="logs/demo.log",
         append=false,
         auto_flush=false,
         rotation=Some(file_rotation(128, max_backups=2)),
@@ -40,7 +40,7 @@ test "config subtype json helpers stringify stable shapes" {
         ),
       ),
     ),
-    content="{\"kind\":\"file\",\"path\":\"demo.log\",\"append\":false,\"auto_flush\":false,\"text_formatter\":{\"show_timestamp\":false,\"show_level\":true,\"show_target\":true,\"show_fields\":true,\"separator\":\" \",\"field_separator\":\" \",\"template\":\"\",\"color_mode\":\"auto\",\"color_support\":\"truecolor\",\"style_markup\":\"full\",\"target_style_markup\":\"disabled\",\"fields_style_markup\":\"disabled\"},\"rotation\":{\"max_bytes\":128,\"max_backups\":2}}",
+    content="{\"kind\":\"file\",\"path\":\"logs/demo.log\",\"append\":false,\"auto_flush\":false,\"text_formatter\":{\"show_timestamp\":false,\"show_level\":true,\"show_target\":true,\"show_fields\":true,\"separator\":\" \",\"field_separator\":\" \",\"template\":\"\",\"color_mode\":\"auto\",\"color_support\":\"truecolor\",\"style_markup\":\"full\",\"target_style_markup\":\"disabled\",\"fields_style_markup\":\"disabled\"},\"rotation\":{\"max_bytes\":128,\"max_backups\":2}}",
   )
   inspect(
     @json_parser.stringify(
@@ -141,7 +141,7 @@ test "config json helpers export stable structured shapes" {
   let sink_json = sink_config_to_json(
     SinkConfig::new(
       kind=SinkKind::File,
-      path="demo.log",
+      path="logs/demo.log",
       append=false,
       auto_flush=false,
       rotation=Some(file_rotation(128, max_backups=2)),
@@ -161,7 +161,7 @@ test "config json helpers export stable structured shapes" {
   inspect(sink_obj.get("kind").unwrap().as_string().unwrap(), content="file")
   inspect(
     sink_obj.get("path").unwrap().as_string().unwrap(),
-    content="demo.log",
+    content="logs/demo.log",
   )
   inspect(sink_obj.get("append").unwrap().as_bool().unwrap(), content="false")
   inspect(

src/logger_config_parser_test.mbt

@@ -45,7 +45,7 @@ test "logger config parser reads formatter and queue options" {
 ///|
 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}}}",
+    "{\"sink\":{\"kind\":\"file\",\"path\":\"logs/bitlogger.log\",\"rotation\":{\"max_bytes\":128,\"max_backups\":3}}}",
   )
   inspect(
     match config.sink.kind {
@@ -54,7 +54,7 @@ test "logger config parser reads file rotation options" {
     },
     content="File",
   )
-  inspect(config.sink.path, content="bitlogger.log")
+  inspect(config.sink.path, content="logs/bitlogger.log")
   match config.sink.rotation {
     Some(rotation) => {
       inspect(rotation.max_bytes, content="128")
@@ -68,9 +68,9 @@ test "logger config parser reads file rotation options" {
 ///|
 test "logger config parser prefers max_bytes_i64 when present" {
   let config = parse_logger_config_text(
-    "{\"sink\":{\"kind\":\"file\",\"path\":\"bitlogger.log\",\"rotation\":{\"max_bytes\":128,\"max_bytes_i64\":\"4294967296\",\"max_backups\":3}}}",
+    "{\"sink\":{\"kind\":\"file\",\"path\":\"logs/bitlogger.log\",\"rotation\":{\"max_bytes\":128,\"max_bytes_i64\":\"4294967296\",\"max_backups\":3}}}",
   )
-  inspect(config.sink.path, content="bitlogger.log")
+  inspect(config.sink.path, content="logs/bitlogger.log")
   match config.sink.rotation {
     Some(rotation) => {
       inspect(rotation.max_bytes, content="2147483647")

src/logger_config_rotation_test.mbt

@@ -43,13 +43,13 @@ test "logger config stringify roundtrips file rotation fields" {
     LoggerConfig::new(
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="bitlogger.log",
+        path="logs/bitlogger.log",
         rotation=Some(file_rotation(256, max_backups=2)),
       ),
     ),
   )
   let config = parse_logger_config_text(text)
-  inspect(config.sink.path, content="bitlogger.log")
+  inspect(config.sink.path, content="logs/bitlogger.log")
   match config.sink.rotation {
     Some(rotation) => {
       inspect(rotation.max_bytes, content="256")
@@ -66,13 +66,13 @@ test "logger config stringify roundtrips file rotation i64 metadata" {
     LoggerConfig::new(
       sink=SinkConfig::new(
         kind=SinkKind::File,
-        path="bitlogger.log",
+        path="logs/bitlogger.log",
         rotation=Some(file_rotation_i64(4294967296L, max_backups=2)),
       ),
     ),
   )
   let config = parse_logger_config_text(text)
-  inspect(config.sink.path, content="bitlogger.log")
+  inspect(config.sink.path, content="logs/bitlogger.log")
   match config.sink.rotation {
     Some(rotation) => {
       inspect(rotation.max_bytes, content="2147483647")

src/parsed_application_logger_test.mbt

@@ -147,7 +147,7 @@ test "application logger parse-build matches parsed direct builder behavior" {
 ///|
 test "parsed application logger keeps direct runtime helper surface" {
   let logger : ApplicationLogger = parse_and_build_application_logger(
-    "{\"min_level\":\"warn\",\"target\":\"app.json.helpers\",\"queue\":{\"max_pending\":2,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"app-json-helpers.log\"}}",
+    "{\"min_level\":\"warn\",\"target\":\"app.json.helpers\",\"queue\":{\"max_pending\":2,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"logs/app-json-helpers.log\"}}",
   )
 
   logger.error("one")

src/parsed_library_logger_test.mbt

@@ -143,7 +143,7 @@ test "library logger parse-build unwrap matches parsed direct builder behavior"
 
 ///|
 test "library logger parse-build unwrap preserves file runtime helpers" {
-  let raw = "{\"min_level\":\"warn\",\"target\":\"lib.json.file.same-build\",\"queue\":{\"max_pending\":2,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"lib-json-file-same-build.log\"}}"
+  let raw = "{\"min_level\":\"warn\",\"target\":\"lib.json.file.same-build\",\"queue\":{\"max_pending\":2,\"overflow\":\"DropOldest\"},\"sink\":{\"kind\":\"file\",\"path\":\"logs/lib-json-file-same-build.log\"}}"
   let logger = parse_and_build_library_logger(raw)
   let full = logger.to_logger()
   let configured = parse_and_build_logger(raw)
@@ -208,7 +208,7 @@ test "library logger parse-build unwrap preserves file runtime helpers" {
 
 ///|
 test "library logger parse-build unwrap preserves file controls" {
-  let raw = "{\"min_level\":\"warn\",\"target\":\"lib.json.file.controls.same-build\",\"sink\":{\"kind\":\"file\",\"path\":\"lib-json-file-controls-same-build.log\"}}"
+  let raw = "{\"min_level\":\"warn\",\"target\":\"lib.json.file.controls.same-build\",\"sink\":{\"kind\":\"file\",\"path\":\"logs/lib-json-file-controls-same-build.log\"}}"
   let logger = parse_and_build_library_logger(raw)
   let full = logger.to_logger()
   let configured = parse_and_build_logger(raw)

src/presets_test.mbt

@@ -40,7 +40,7 @@ test "logger config presets use expected defaults" {
 
 ///|
 test "file preset uses file sink defaults" {
-  let config = file("bitlogger.log")
+  let config = file("logs/bitlogger.log")
   inspect(config.min_level.label(), content="INFO")
   inspect(config.target, content="")
   inspect(config.timestamp, content="false")
@@ -51,7 +51,7 @@ test "file preset uses file sink defaults" {
     },
     content="File",
   )
-  inspect(config.sink.path, content="bitlogger.log")
+  inspect(config.sink.path, content="logs/bitlogger.log")
   inspect(config.sink.append, content="true")
   inspect(config.sink.auto_flush, content="true")
   inspect(config.sink.rotation is None, content="true")
@@ -86,7 +86,7 @@ test "preset helpers compose queue and file rotation without losing config" {
     separator=" | ",
   )
   let config = file(
-    "service.log",
+    "logs/service.log",
     min_level=Level::Warn,
     target="svc.worker",
     timestamp=true,
@@ -102,7 +102,7 @@ test "preset helpers compose queue and file rotation without losing config" {
   inspect(config.min_level.label(), content="WARN")
   inspect(config.target, content="svc.worker")
   inspect(config.timestamp, content="true")
-  inspect(config.sink.path, content="service.log")
+  inspect(config.sink.path, content="logs/service.log")
   inspect(config.sink.append, content="false")
   inspect(config.sink.auto_flush, content="false")
   inspect(config.sink.text_formatter.show_timestamp, content="false")
@@ -132,11 +132,15 @@ test "preset helpers compose queue and file rotation without losing config" {
 ///|
 test "queue helper preserves file rotation when applied after rotation" {
   let config = with_queue(
-    with_file_rotation(file("service.log", append=false), 256, max_backups=2),
+    with_file_rotation(
+      file("logs/service.log", append=false),
+      256,
+      max_backups=2,
+    ),
     max_pending=8,
     overflow=QueueOverflowPolicy::DropNewest,
   )
-  inspect(config.sink.path, content="service.log")
+  inspect(config.sink.path, content="logs/service.log")
   inspect(config.sink.append, content="false")
   match config.queue {
     Some(queue) => {
@@ -163,11 +167,11 @@ test "queue helper preserves file rotation when applied after rotation" {
 ///|
 test "file rotation i64 helper preserves file preset shape" {
   let config = with_file_rotation_i64(
-    with_queue(file("service.log", append=false), max_pending=8),
+    with_queue(file("logs/service.log", append=false), max_pending=8),
     4294967296L,
     max_backups=2,
   )
-  inspect(config.sink.path, content="service.log")
+  inspect(config.sink.path, content="logs/service.log")
   inspect(config.sink.append, content="false")
   match config.sink.rotation {
     Some(rotation) => {

src/runtime_file_json_test.mbt

@@ -29,7 +29,7 @@ test "file state json helpers stringify stable snapshots" {
 
   let plain = file_sink_state_to_json(
     FileSinkState::new(
-      "demo.log",
+      "logs/demo.log",
       available=true,
       append=false,
       auto_flush=true,
@@ -48,11 +48,11 @@ test "file state json helpers stringify stable snapshots" {
     .unwrap()
   inspect(
     @json_parser.stringify(plain),
-    content="{\"path\":\"demo.log\",\"available\":true,\"append\":false,\"auto_flush\":true,\"open_failures\":1,\"write_failures\":2,\"flush_failures\":3,\"rotation_failures\":4,\"rotation\":{\"max_bytes\":64,\"max_backups\":2}}",
+    content="{\"path\":\"logs/demo.log\",\"available\":true,\"append\":false,\"auto_flush\":true,\"open_failures\":1,\"write_failures\":2,\"flush_failures\":3,\"rotation_failures\":4,\"rotation\":{\"max_bytes\":64,\"max_backups\":2}}",
   )
   inspect(
     plain_obj.get("path").unwrap().as_string().unwrap(),
-    content="demo.log",
+    content="logs/demo.log",
   )
   inspect(
     plain_obj.get("available").unwrap().as_bool().unwrap(),
@@ -90,7 +90,7 @@ test "file state json helpers stringify stable snapshots" {
 
   let wide = file_sink_state_to_json(
     FileSinkState::new(
-      "wide.log",
+      "logs/wide.log",
       available=true,
       append=true,
       auto_flush=false,
@@ -132,7 +132,7 @@ test "file state json helpers stringify stable snapshots" {
   inspect(
     stringify_file_sink_state(
       FileSinkState::new(
-        "plain.log",
+        "logs/plain.log",
         available=false,
         append=true,
         auto_flush=false,
@@ -143,7 +143,7 @@ test "file state json helpers stringify stable snapshots" {
         rotation_failures=0,
       ),
     ),
-    content="{\"path\":\"plain.log\",\"available\":false,\"append\":true,\"auto_flush\":false,\"open_failures\":0,\"write_failures\":0,\"flush_failures\":0,\"rotation_failures\":0,\"rotation\":null}",
+    content="{\"path\":\"logs/plain.log\",\"available\":false,\"append\":true,\"auto_flush\":false,\"open_failures\":0,\"write_failures\":0,\"flush_failures\":0,\"rotation_failures\":0,\"rotation\":null}",
   )
 }
 
@@ -152,7 +152,7 @@ test "runtime file state json helpers stringify queue snapshots" {
   let runtime_json = runtime_file_state_to_json(
     RuntimeFileState::new(
       FileSinkState::new(
-        "queue.log",
+        "logs/queue.log",
         available=true,
         append=true,
         auto_flush=false,
@@ -180,7 +180,7 @@ test "runtime file state json helpers stringify queue snapshots" {
   )
   inspect(
     runtime_file_obj.get("path").unwrap().as_string().unwrap(),
-    content="queue.log",
+    content="logs/queue.log",
   )
   inspect(
     runtime_file_obj.get("available").unwrap().as_bool().unwrap(),
@@ -194,7 +194,7 @@ test "runtime file state json helpers stringify queue snapshots" {
   let json = stringify_runtime_file_state(
     RuntimeFileState::new(
       FileSinkState::new(
-        "queue.log",
+        "logs/queue.log",
         available=true,
         append=true,
         auto_flush=false,
@@ -211,13 +211,13 @@ test "runtime file state json helpers stringify queue snapshots" {
   )
   inspect(
     json,
-    content="{\"file\":{\"path\":\"queue.log\",\"available\":true,\"append\":true,\"auto_flush\":false,\"open_failures\":0,\"write_failures\":1,\"flush_failures\":2,\"rotation_failures\":3,\"rotation\":null},\"queued\":true,\"pending_count\":7,\"dropped_count\":5}",
+    content="{\"file\":{\"path\":\"logs/queue.log\",\"available\":true,\"append\":true,\"auto_flush\":false,\"open_failures\":0,\"write_failures\":1,\"flush_failures\":2,\"rotation_failures\":3,\"rotation\":null},\"queued\":true,\"pending_count\":7,\"dropped_count\":5}",
   )
 
   let wide_runtime_json = runtime_file_state_to_json(
     RuntimeFileState::new(
       FileSinkState::new(
-        "wide-queue.log",
+        "logs/wide-queue.log",
         available=true,
         append=true,
         auto_flush=true,

src/runtime_sink_close_test.mbt

@@ -16,7 +16,7 @@ test "configured logger close stays aligned with runtime sink close" {
 
   let file_config = LoggerConfig::new(
     target="config.close.file",
-    sink=SinkConfig::new(kind=SinkKind::File, path="config-close.log"),
+    sink=SinkConfig::new(kind=SinkKind::File, path="logs/config-close.log"),
   )
   let file_logger = build_logger(file_config)
   let file_sink = build_logger(file_config).sink
@@ -110,7 +110,7 @@ test "configured queued console close drains pending queue" {
 test "runtime sink queued file close drains queue before teardown" {
   let sink = RuntimeSink::QueuedFile(
     queued_sink(
-      file_sink("runtime-close-queued.log", auto_flush=false),
+      file_sink("logs/runtime-close-queued.log", auto_flush=false),
       max_pending=4,
     ),
   )

src/runtime_sink_file_controls_test.mbt

@@ -1,6 +1,6 @@
 ///|
 test "runtime sink plain file reopen helpers and failure resets work directly" {
-  let sink = RuntimeSink::File(file_sink("runtime-reopen-direct.log"))
+  let sink = RuntimeSink::File(file_sink("logs/runtime-reopen-direct.log"))
   if sink.file_available() {
     inspect(sink.close(), content="true")
     inspect(sink.file_reopen_append(), content="true")
@@ -52,7 +52,7 @@ test "runtime sink plain file reopen helpers and failure resets work directly" {
 ///|
 test "runtime sink queued file reopen helpers and failure resets work directly" {
   let sink = RuntimeSink::QueuedFile(
-    queued_sink(file_sink("runtime-reopen-queued.log"), max_pending=2),
+    queued_sink(file_sink("logs/runtime-reopen-queued.log"), max_pending=2),
   )
   if sink.file_available() {
     inspect(sink.file_close(), content="true")

src/runtime_sink_file_surface_test.mbt

@@ -7,7 +7,7 @@ test "runtime sink plain variants use documented fallback counts" {
   inspect(console_sink.drain(), content="0")
 
   let file_sink = RuntimeSink::File(
-    file_sink("runtime-direct.log", auto_flush=false),
+    file_sink("logs/runtime-direct.log", auto_flush=false),
   )
   inspect(file_sink.pending_count(), content="0")
   inspect(file_sink.dropped_count(), content="0")
@@ -81,17 +81,17 @@ test "runtime sink non-file variants expose documented file fallbacks" {
 test "runtime sink plain file helpers expose direct file state and policy" {
   let sink = RuntimeSink::File(
     file_sink(
-      "runtime-file-helpers.log",
+      "logs/runtime-file-helpers.log",
       auto_flush=false,
       rotation=Some(file_rotation(40, max_backups=2)),
     ),
   )
   inspect(sink.file_available() == native_files_supported(), content="true")
   match sink.file_path_or_none() {
-    Some(path) => inspect(path, content="runtime-file-helpers.log")
+    Some(path) => inspect(path, content="logs/runtime-file-helpers.log")
     None => inspect(false, content="true")
   }
-  inspect(sink.file_path(), content="runtime-file-helpers.log")
+  inspect(sink.file_path(), content="logs/runtime-file-helpers.log")
   inspect(sink.file_append_mode(), content="true")
   inspect(sink.file_auto_flush(), content="false")
   inspect(sink.file_rotation_enabled(), content="true")
@@ -125,14 +125,14 @@ test "runtime sink plain file helpers expose direct file state and policy" {
   }
   match sink.file_state_or_none() {
     Some(snapshot) => {
-      inspect(snapshot.path, content="runtime-file-helpers.log")
+      inspect(snapshot.path, content="logs/runtime-file-helpers.log")
       inspect(snapshot.append, content="true")
       inspect(snapshot.auto_flush, content="false")
     }
     None => inspect(false, content="true")
   }
   let state = sink.file_state()
-  inspect(state.path, content="runtime-file-helpers.log")
+  inspect(state.path, content="logs/runtime-file-helpers.log")
   inspect(state.available == sink.file_available(), content="true")
   inspect(state.append, content="true")
   inspect(state.auto_flush, content="false")
@@ -141,7 +141,7 @@ test "runtime sink plain file helpers expose direct file state and policy" {
       inspect(snapshot.queued, content="false")
       inspect(snapshot.pending_count, content="0")
       inspect(snapshot.dropped_count, content="0")
-      inspect(snapshot.file.path, content="runtime-file-helpers.log")
+      inspect(snapshot.file.path, content="logs/runtime-file-helpers.log")
     }
     None => inspect(false, content="true")
   }
@@ -170,7 +170,7 @@ test "runtime sink plain file helpers expose direct file state and policy" {
 test "runtime sink queued file helpers preserve queue-aware file runtime state" {
   let sink = RuntimeSink::QueuedFile(
     queued_sink(
-      file_sink("runtime-queued-file.log", auto_flush=false),
+      file_sink("logs/runtime-queued-file.log", auto_flush=false),
       max_pending=2,
       overflow=QueueOverflowPolicy::DropNewest,
     ),
@@ -185,10 +185,10 @@ test "runtime sink queued file helpers preserve queue-aware file runtime state"
   logger.info("three")
   inspect(sink.file_available() == native_files_supported(), content="true")
   match sink.file_path_or_none() {
-    Some(path) => inspect(path, content="runtime-queued-file.log")
+    Some(path) => inspect(path, content="logs/runtime-queued-file.log")
     None => inspect(false, content="true")
   }
-  inspect(sink.file_path(), content="runtime-queued-file.log")
+  inspect(sink.file_path(), content="logs/runtime-queued-file.log")
   inspect(sink.file_policy_or_none() is None, content="false")
   inspect(sink.file_default_policy_or_none() is None, content="false")
   inspect(sink.file_state_or_none() is None, content="false")
@@ -199,7 +199,7 @@ test "runtime sink queued file helpers preserve queue-aware file runtime state"
       inspect(snapshot.queued, content="true")
       inspect(snapshot.pending_count, content="2")
       inspect(snapshot.dropped_count, content="1")
-      inspect(snapshot.file.path, content="runtime-queued-file.log")
+      inspect(snapshot.file.path, content="logs/runtime-queued-file.log")
     }
     None => inspect(false, content="true")
   }

src/runtime_sink_progress_test.mbt

@@ -111,7 +111,7 @@ test "runtime sink progress helpers expose queue and plain file steps separately
   inspect(queued_progress.file_backed, content="false")
 
   let file_sink = RuntimeSink::File(
-    file_sink("runtime-progress-direct.log", auto_flush=false),
+    file_sink("logs/runtime-progress-direct.log", auto_flush=false),
   )
   let file_progress = file_sink.flush_progress()
   inspect(file_progress.queue_advanced_count, content="0")