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Original file line number | Diff line number | Diff line change |
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use std::fmt::Debug; | ||
use std::sync::{Arc, Mutex}; | ||
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use tracing::field::{Field, Visit}; | ||
use tracing::span::{Attributes, Id, Record}; | ||
use tracing::subscriber::with_default; | ||
use tracing::{Event, Metadata, Subscriber}; | ||
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use crate::tracing::{DynamicLogger, TraceLevel}; | ||
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#[test] | ||
fn test_dynamic_logger_without_base_message() { | ||
let subscriber = TestSubscriber::new(); | ||
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with_default(subscriber.clone(), || { | ||
let logger = DynamicLogger::new(TraceLevel::Info, None); | ||
logger.log_message("Test message"); | ||
}); | ||
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let messages = subscriber.messages(); | ||
assert_eq!(messages.len(), 1); | ||
assert!(messages[0].contains("Test message")); | ||
assert!(messages[0].contains("INFO")); | ||
} | ||
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#[test] | ||
fn test_dynamic_logger_with_base_message() { | ||
let subscriber = TestSubscriber::new(); | ||
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with_default(subscriber.clone(), || { | ||
let logger = DynamicLogger::new(TraceLevel::Debug, Some("BaseMessage".to_string())); | ||
logger.log_message("Test message"); | ||
}); | ||
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let messages = subscriber.messages(); | ||
assert_eq!(messages.len(), 1); | ||
assert!(messages[0].contains("BaseMessage: Test message")); | ||
assert!(messages[0].contains("DEBUG")); | ||
} | ||
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#[test] | ||
fn test_all_trace_levels() { | ||
let subscriber = TestSubscriber::new(); | ||
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let test_cases = [ | ||
(TraceLevel::Trace, "TRACE"), | ||
(TraceLevel::Debug, "DEBUG"), | ||
(TraceLevel::Info, "INFO"), | ||
(TraceLevel::Warn, "WARN"), | ||
(TraceLevel::Error, "ERROR"), | ||
]; | ||
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with_default(subscriber.clone(), || { | ||
for (level, expected_level_str) in test_cases { | ||
subscriber.clear(); | ||
let logger = DynamicLogger::new(level, None); | ||
logger.log_message("Test message"); | ||
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let messages = subscriber.messages(); | ||
assert_eq!(messages.len(), 1); | ||
assert!(messages[0].contains(expected_level_str)); | ||
assert!(messages[0].contains("Test message")); | ||
} | ||
}); | ||
} | ||
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#[test] | ||
fn test_message_formatting() { | ||
let subscriber = TestSubscriber::new(); | ||
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with_default(subscriber.clone(), || { | ||
let base_message = Some("Component".to_string()); | ||
let logger = DynamicLogger::new(TraceLevel::Info, base_message); | ||
logger.log_message("Operation completed"); | ||
}); | ||
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let messages = subscriber.messages(); | ||
assert_eq!(messages.len(), 1); | ||
assert!(messages[0].contains("Component: Operation completed")); | ||
assert!(messages[0].contains("INFO")); | ||
} | ||
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#[test] | ||
fn test_empty_message() { | ||
let subscriber = TestSubscriber::new(); | ||
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with_default(subscriber.clone(), || { | ||
let logger = DynamicLogger::new(TraceLevel::Warn, None); | ||
logger.log_message(""); | ||
}); | ||
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let messages = subscriber.messages(); | ||
assert_eq!(messages.len(), 1); | ||
assert!(messages[0].contains("WARN")); | ||
} | ||
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// Custom visitor to capture event fields | ||
struct MessageVisitor<'a> { | ||
message: &'a mut String, | ||
} | ||
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impl<'a> Visit for MessageVisitor<'a> { | ||
fn record_debug(&mut self, field: &Field, value: &dyn Debug) { | ||
if field.name() == "message" { | ||
self.message.push_str(&format!("{:?}", value)); | ||
} | ||
} | ||
} | ||
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// Custom subscriber to capture log output | ||
#[derive(Default, Clone)] | ||
struct TestSubscriber { | ||
messages: Arc<Mutex<Vec<String>>>, | ||
} | ||
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impl TestSubscriber { | ||
fn new() -> Self { | ||
Self { messages: Arc::new(Mutex::new(Vec::new())) } | ||
} | ||
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fn messages(&self) -> Vec<String> { | ||
self.messages.lock().unwrap().clone() | ||
} | ||
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fn clear(&self) { | ||
self.messages.lock().unwrap().clear(); | ||
} | ||
} | ||
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impl Subscriber for TestSubscriber { | ||
fn enabled(&self, _metadata: &Metadata<'_>) -> bool { | ||
true | ||
} | ||
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fn event(&self, event: &Event<'_>) { | ||
let mut message = String::new(); | ||
let metadata = event.metadata(); | ||
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// Add level prefix | ||
message.push_str(&format!("{}: ", metadata.level())); | ||
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// Capture the message field | ||
let mut visitor = MessageVisitor { message: &mut message }; | ||
event.record(&mut visitor); | ||
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self.messages.lock().unwrap().push(message); | ||
} | ||
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fn enter(&self, _span: &Id) {} | ||
fn exit(&self, _span: &Id) {} | ||
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fn new_span(&self, _span: &Attributes<'_>) -> Id { | ||
Id::from_u64(0) | ||
} | ||
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fn record(&self, _span: &Id, _values: &Record<'_>) {} | ||
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fn record_follows_from(&self, _span: &Id, _follows: &Id) {} | ||
} |