Add fuzzing test to flowgger

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 edition = "2018"
 name = "flowgger"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Frank Denis <github@pureftpd.org>", "Matteo Bigoi <bigo@crisidev.org>", "Vivien Chene <viv.chene@gmail.com>", "Francesco Berni <kurojishi@kurojishi.me>"]
 build = "build.rs"
 repository = "https://github.com/awslabs/flowgger"
@@ -56,6 +56,7 @@ time-tz = "0.3"
 
 [dev-dependencies]
 tempdir = "0.3"
+quickcheck = "1"
 
 [profile.release]
 opt-level = 3

src/flowgger/config.rs

@@ -11,7 +11,10 @@ use toml::Value;
 /// [`Configuration`]: https://github.com/jedisct1/flowgger/wiki/Configuration
 #[derive(Clone)]
 pub struct Config {
+    #[cfg(not(test))]
     config: Value,
+    #[cfg(test)]
+    pub config: Value,
 }
 
 impl Config {

src/flowgger/encoder/ltsv_encoder.rs

@@ -134,9 +134,9 @@ use time::Month;
 #[test]
 fn test_ltsv_full_encode_no_sd() {
     let full_msg = "<23>Aug  6 11:15:24 testhostname appname[69]: 42 - some test message";
-    let expected_msg = "host:testhostname\ttime:1659784524\tmessage:some test message\tfull_message:<23>Aug  6 11:15:24 testhostname appname[69]: 42 - some test message\tlevel:7\tfacility:2\tappname:appname\tprocid:69\tmsgid:42";
-    let cfg = Config::from_string("[input]\n[input.ltsv_schema]\nformat = \"ltsv\"\n").unwrap();
     let ts = ts_from_partial_date_time(Month::August, 6, 11, 15, 24);
+    let expected_msg = format!("host:testhostname\ttime:{}\tmessage:some test message\tfull_message:<23>Aug  6 11:15:24 testhostname appname[69]: 42 - some test message\tlevel:7\tfacility:2\tappname:appname\tprocid:69\tmsgid:42", ts);
+    let cfg = Config::from_string("[input]\n[input.ltsv_schema]\nformat = \"ltsv\"\n").unwrap();
 
     let record = Record {
         ts,
@@ -159,9 +159,9 @@ fn test_ltsv_full_encode_no_sd() {
 #[test]
 fn test_ltsv_full_encode_multiple_sd() {
     let full_msg = "<23>Aug  6 11:15:24 testhostname appname[69]: 42 [someid a=\"b\" c=\"123456\"][someid2 a2=\"b2\" c2=\"123456\"] some test message";
-    let expected_msg = "a:b\tc:123456\ta2:b2\tc2:123456\thost:testhostname\ttime:1659784524\tmessage:some test message\tfull_message:<23>Aug  6 11:15:24 testhostname appname[69]: 42 [someid a=\"b\" c=\"123456\"][someid2 a2=\"b2\" c2=\"123456\"] some test message\tlevel:7\tfacility:2\tappname:appname\tprocid:69\tmsgid:42";
-    let cfg = Config::from_string("[input]\n[input.ltsv_schema]\nformat = \"ltsv\"\n").unwrap();
     let ts = ts_from_partial_date_time(Month::August, 6, 11, 15, 24);
+    let expected_msg = format!("a:b\tc:123456\ta2:b2\tc2:123456\thost:testhostname\ttime:{}\tmessage:some test message\tfull_message:<23>Aug  6 11:15:24 testhostname appname[69]: 42 [someid a=\"b\" c=\"123456\"][someid2 a2=\"b2\" c2=\"123456\"] some test message\tlevel:7\tfacility:2\tappname:appname\tprocid:69\tmsgid:42", ts);
+    let cfg = Config::from_string("[input]\n[input.ltsv_schema]\nformat = \"ltsv\"\n").unwrap();
 
     let record = Record {
         ts,

src/flowgger/input/mod.rs

@@ -6,8 +6,10 @@ mod stdin_input;
 mod tcp;
 #[cfg(feature = "tls")]
 mod tls;
-#[cfg(feature = "syslog")]
+#[cfg(all(feature = "syslog", not(test)))]
 mod udp_input;
+#[cfg(test)]
+pub mod udp_input;
 
 #[cfg(feature = "file")]
 pub use self::file::FileInput;

src/flowgger/input/udp_input.rs

@@ -97,7 +97,7 @@ impl Input for UdpInput {
 /// but could not be handled
 /// `Invalid UTF-8 input`: Bubble up from handle_record, the record is not in a valid utf-8 format, it could be a non
 /// supported compression format
-fn handle_record_maybe_compressed(
+pub fn handle_record_maybe_compressed(
     line: &[u8],
     tx: &SyncSender<Vec<u8>>,
     decoder: &Box<dyn Decoder>,

src/flowgger/mod.rs

@@ -1,13 +1,36 @@
+#[cfg(not(test))]
 mod config;
+#[cfg(not(test))]
 mod decoder;
+#[cfg(not(test))]
 mod encoder;
+#[cfg(not(test))]
 mod input;
+#[cfg(not(test))]
 mod merger;
+#[cfg(not(test))]
 mod output;
+
+#[cfg(test)]
+pub mod config;
+#[cfg(test)]
+pub mod decoder;
+#[cfg(test)]
+pub mod encoder;
+#[cfg(test)]
+pub mod input;
+#[cfg(test)]
+pub mod merger;
+#[cfg(test)]
+pub mod output;
+
 mod record;
 mod splitter;
 mod utils;
 
+#[cfg(test)]
+mod test_fuzzer;
+
 use std::io::{stderr, Write};
 
 #[cfg(feature = "capnp-recompile")]
@@ -179,16 +202,26 @@ fn get_output_kafka(_config: &Config) -> ! {
     panic!("Support for Kafka hasn't been compiled in")
 }
 
-#[cfg(feature = "file")]
+#[cfg(all(feature = "file", not(test)))]
 fn get_output_file(config: &Config) -> Box<dyn Output> {
     Box::new(FileOutput::new(config)) as Box<dyn Output>
 }
 
-#[cfg(not(feature = "file"))]
+#[cfg(all(not(feature = "file"), not(test)))]
 fn get_output_file(_config: &Config) -> ! {
     panic!("Support for file hasn't been compiled in")
 }
 
+#[cfg(all(feature = "file", test))]
+pub fn get_output_file(config: &Config) -> Box<dyn Output> {
+    Box::new(FileOutput::new(config)) as Box<dyn Output>
+}
+
+#[cfg(all(not(feature = "file"), test))]
+pub fn get_output_file(_config: &Config) -> ! {
+    panic!("Support for file hasn't been compiled in")
+}
+
 #[cfg(feature = "tls")]
 fn get_output_tls(config: &Config) -> Box<dyn Output> {
     Box::new(TlsOutput::new(config)) as Box<dyn Output>
@@ -274,12 +307,20 @@ fn get_encoder_passthrough(config: &Config) -> Box<dyn Encoder + Send> {
     Box::new(PassthroughEncoder::new(config)) as Box<dyn Encoder + Send>
 }
 
-#[cfg(feature = "rfc3164")]
-fn get_decoder_rfc3164(config: &Config) -> Box<dyn Decoder + Send> {
+#[cfg(all(feature = "rfc3164", test))]
+pub fn get_decoder_rfc3164(config: &Config) -> Box<dyn Decoder + Send> {
     Box::new(RFC3164Decoder::new(config)) as Box<dyn Decoder + Send>
 }
+#[cfg(all(feature = "rfc3164", test))]
+pub fn get_encoder_rfc3164(config: &Config) -> Box<dyn Encoder + Send> {
+    Box::new(RFC3164Encoder::new(config)) as Box<dyn Encoder + Send>
+}
 
-#[cfg(feature = "rfc3164")]
+#[cfg(all(feature = "rfc3164", not(test)))]
+fn get_decoder_rfc3164(config: &Config) -> Box<dyn Decoder + Send> {
+    Box::new(RFC3164Decoder::new(config)) as Box<dyn Decoder + Send>
+}
+#[cfg(all(feature = "rfc3164", not(test)))]
 fn get_encoder_rfc3164(config: &Config) -> Box<dyn Encoder + Send> {
     Box::new(RFC3164Encoder::new(config)) as Box<dyn Encoder + Send>
 }