Pass --no-safe-fallback to spamc in tests

README.md

@@ -99,7 +99,8 @@ spamassassin-milter -h
 ```
 
 More detailed information can be found in the provided man page
-*spamassassin-milter*(8).
+*spamassassin-milter*(8). (You can view the man page without installing by
+passing the file’s path to `man`: `man ./spamassassin-milter.8`)
 
 Setting up SpamAssassin Milter as a system service is easiest by using the
 provided systemd service file: Edit `spamassassin-milter.service` with the

tests/common/mod.rs

@@ -9,13 +9,15 @@ use std::{
     time::{Duration, Instant},
 };
 
-// A file `/etc/spamassassin/spamc.conf` present on the host is read by `spamc`
-// by default and may break the integration tests. Isolate `spamc` by overriding
-// the configuration file location.
-pub fn isolate_from_spamc_conf(mut builder: ConfigBuilder) -> ConfigBuilder {
-    // Must use `-F` instead of `--config` due to a bug in `spamc`.
-    // Additionally, `--log-to-stderr` avoids polluting syslog with test output.
-    builder.spamc_args(vec!["-F", "/dev/null", "--log-to-stderr"]);
+/// Configures the builder for integration testing with `spamc`. Most
+/// importantly, this isolates `spamc` from any configuration file
+/// `/etc/spamassassin/spamc.conf` present on the host, as this configuration is
+/// read by default and may break the integration tests.
+pub fn configure_spamc(mut builder: ConfigBuilder) -> ConfigBuilder {
+    // Note: Must use `-F` instead of `--config` due to a bug in `spamc`.
+    // `--no-safe-fallback` prevents connection attempts from failing silently,
+    // and `--log-to-stderr` avoids polluting syslog with test output.
+    builder.spamc_args(&["-F", "/dev/null", "--no-safe-fallback", "--log-to-stderr"]);
     builder
 }
 

tests/ham_message.rs

@@ -5,8 +5,8 @@ use spamassassin_milter::*;
 
 #[test]
 fn ham_message() {
-    let mut builder = isolate_from_spamc_conf(Config::builder());
-    builder.spamc_args(vec![format!("--port={}", SPAMD_PORT)]);
+    let mut builder = configure_spamc(Config::builder());
+    builder.spamc_args(&[format!("--port={}", SPAMD_PORT)]);
     let config = builder.build();
 
     let server = spawn_mock_spamd_server(SPAMD_PORT, |ham| {

tests/live.rs

@@ -7,11 +7,11 @@ use spamassassin_milter::*;
 /// run on demand, as SpamAssassin will actually analyse the input, and do DNS
 /// queries etc.
 #[test]
-#[ignore]  // use option `--include-ignored` to run
+#[ignore]
 fn live() {
-    // Without `spamc_args` set, `spamc` will try to connect to the default
+    // When no port is specified, `spamc` will try to connect to the default
     // `spamd` port 783 (see also `/etc/services`).
-    let config = isolate_from_spamc_conf(Config::builder()).build();
+    let config = configure_spamc(Config::builder()).build();
 
     let miltertest = spawn_miltertest_runner(file!());
 

tests/reject_spam.rs

@@ -5,12 +5,12 @@ use spamassassin_milter::*;
 
 #[test]
 fn reject_spam() {
-    let mut builder = isolate_from_spamc_conf(Config::builder());
+    let mut builder = configure_spamc(Config::builder());
     builder
         .reject_spam(true)
         .reply_code("554".into())
         .reply_text("Not allowed!".into())
-        .spamc_args(vec![format!("--port={}", SPAMD_PORT)]);
+        .spamc_args(&[format!("--port={}", SPAMD_PORT)]);
     let config = builder.build();
 
     let server = spawn_mock_spamd_server(SPAMD_PORT, |spam| {

tests/skip_oversized.rs

@@ -5,9 +5,10 @@ use spamassassin_milter::*;
 
 #[test]
 fn skip_oversized() {
-    let mut builder = isolate_from_spamc_conf(Config::builder());
-    builder.max_message_size(512);
-    builder.spamc_args(vec![format!("--port={}", SPAMD_PORT)]);
+    let mut builder = configure_spamc(Config::builder());
+    builder
+        .max_message_size(512)
+        .spamc_args(&[format!("--port={}", SPAMD_PORT)]);
     let config = builder.build();
 
     let server = spawn_mock_spamd_server(SPAMD_PORT, Ok);

tests/spam_message.rs

@@ -5,8 +5,8 @@ use spamassassin_milter::*;
 
 #[test]
 fn spam_message() {
-    let mut builder = isolate_from_spamc_conf(Config::builder());
-    builder.spamc_args(vec![format!("--port={}", SPAMD_PORT)]);
+    let mut builder = configure_spamc(Config::builder());
+    builder.spamc_args(&[format!("--port={}", SPAMD_PORT)]);
     let config = builder.build();
 
     let server = spawn_mock_spamd_server(SPAMD_PORT, |spam| {

tests/spamc_connection_error.rs

@@ -5,13 +5,8 @@ use spamassassin_milter::*;
 
 #[test]
 fn spamc_connection_error() {
-    let mut builder = isolate_from_spamc_conf(Config::builder());
-    // `spamc` always ‘works’ even if it cannot actually reach `spamd`!
-    // `--no-safe-fallback` prevents this masking of connection errors.
-    builder.spamc_args(vec![
-        String::from("--no-safe-fallback"),
-        format!("--port={}", SPAMD_PORT),
-    ]);
+    let mut builder = configure_spamc(Config::builder());
+    builder.spamc_args(&[format!("--port={}", SPAMD_PORT)]);
     let config = builder.build();
 
     let miltertest = spawn_miltertest_runner(file!());