All printing replaced by logging (#67)

compressor_integration_tests/src/lib.rs

@@ -357,9 +357,9 @@ fn functions_are_self_consistent() {
 
 pub fn setup_logger() {
     // setup the logger for the auto_compressor
-    // The default can be overwritten with COMPRESSOR_LOG_LEVEL
+    // The default can be overwritten with RUST_LOG
     // see the README for more information <--- TODO
-    if env::var("COMPRESSOR_LOG_LEVEL").is_err() {
+    if env::var("RUST_LOG").is_err() {
         let mut log_builder = env_logger::builder();
         // set is_test(true) so that the output is hidden by cargo test (unless the test fails)
         log_builder.is_test(true);
@@ -370,8 +370,8 @@ pub fn setup_logger() {
         // use try_init() incase the logger has been setup by some previous test
         let _ = log_builder.try_init();
     } else {
-        // If COMPRESSOR_LOG_LEVEL was set then use that
-        let mut log_builder = env_logger::Builder::from_env("COMPRESSOR_LOG_LEVEL");
+        // If RUST_LOG was set then use that
+        let mut log_builder = env_logger::Builder::from_env("RUST_LOG");
         // set is_test(true) so that the output is hidden by cargo test (unless the test fails)
         log_builder.is_test(true);
         // use try_init() in case the logger has been setup by some previous test

compressor_integration_tests/tests/auto_compressor_state_saving_tests.rs

@@ -2,13 +2,14 @@ use auto_compressor::state_saving::{
     connect_to_database, create_tables_if_needed, read_room_compressor_state,
     write_room_compressor_state,
 };
-use compressor_integration_tests::{clear_compressor_state, DB_URL};
+use compressor_integration_tests::{clear_compressor_state, setup_logger, DB_URL};
 use serial_test::serial;
 use synapse_compress_state::Level;
 
 #[test]
 #[serial(db)]
 fn write_then_read_state_gives_correct_results() {
+    setup_logger();
     let mut client = connect_to_database(DB_URL).unwrap();
     create_tables_if_needed(&mut client).unwrap();
     clear_compressor_state();

compressor_integration_tests/tests/compressor_config_tests.rs

@@ -7,7 +7,7 @@ use compressor_integration_tests::{
         compressed_3_3_from_0_to_13_with_state, line_segments_with_state, line_with_state,
         structure_from_edges_with_state,
     },
-    DB_URL,
+    setup_logger, DB_URL,
 };
 use serial_test::serial;
 use synapse_compress_state::{run, Config};
@@ -22,6 +22,7 @@ use synapse_compress_state::{run, Config};
 #[test]
 #[serial(db)]
 fn run_succeeds_without_crashing() {
+    setup_logger();
     // This starts with the following structure
     //
     // 0-1-2-3-4-5-6-7-8-9-10-11-12-13
@@ -67,6 +68,7 @@ fn run_succeeds_without_crashing() {
 #[test]
 #[serial(db)]
 fn changes_commited_if_no_min_saved_rows() {
+    setup_logger();
     // This starts with the following structure
     //
     // 0-1-2 3-4-5 6-7-8 9-10-11 12-13
@@ -132,6 +134,7 @@ fn changes_commited_if_no_min_saved_rows() {
 #[test]
 #[serial(db)]
 fn changes_commited_if_min_saved_rows_exceeded() {
+    setup_logger();
     // This starts with the following structure
     //
     // 0-1-2 3-4-5 6-7-8 9-10-11 12-13
@@ -197,6 +200,7 @@ fn changes_commited_if_min_saved_rows_exceeded() {
 #[test]
 #[serial(db)]
 fn changes_not_commited_if_fewer_than_min_saved_rows() {
+    setup_logger();
     // This starts with the following structure
     //
     // 0-1-2 3-4-5 6-7-8 9-10-11 12-13
@@ -263,6 +267,7 @@ fn changes_not_commited_if_fewer_than_min_saved_rows() {
 #[test]
 #[should_panic(expected = "Error connecting to the database:")]
 fn run_panics_if_invalid_db_url() {
+    setup_logger();
     // set up the config options
     let db_url = "thisIsAnInvalidURL".to_string();
     let room_id = "room1".to_string();
@@ -298,6 +303,7 @@ fn run_panics_if_invalid_db_url() {
 #[test]
 #[serial(db)]
 fn run_only_affects_given_room_id() {
+    setup_logger();
     // build room1 stuff up
     // This starts with the following structure
     //
@@ -374,6 +380,7 @@ fn run_only_affects_given_room_id() {
 #[test]
 #[serial(db)]
 fn run_respects_groups_to_compress() {
+    setup_logger();
     // This starts with the following structure
     //
     // 0-1-2 3-4-5 6-7-8 9-10-11 12-13
@@ -456,6 +463,7 @@ fn run_respects_groups_to_compress() {
 #[test]
 #[serial(db)]
 fn run_is_idempotent_when_run_on_whole_room() {
+    setup_logger();
     // This starts with the following structure
     //
     // 0-1-2 3-4-5 6-7-8 9-10-11 12-13

compressor_integration_tests/tests/compressor_continue_run_tests.rs

@@ -2,7 +2,7 @@ use compressor_integration_tests::{
     add_contents_to_database, database_collapsed_states_match_map, database_structure_matches_map,
     empty_database,
     map_builder::{compressed_3_3_from_0_to_13_with_state, line_segments_with_state},
-    DB_URL,
+    setup_logger, DB_URL,
 };
 use serial_test::serial;
 use synapse_compress_state::{continue_run, Level};
@@ -13,6 +13,7 @@ use synapse_compress_state::{continue_run, Level};
 #[test]
 #[serial(db)]
 fn continue_run_called_twice_same_as_run() {
+    setup_logger();
     // This starts with the following structure
     //
     // 0-1-2 3-4-5 6-7-8 9-10-11 12-13