Make suggestion test more robust (#1229)

lychee-bin/tests/cli.rs

@@ -14,6 +14,7 @@ mod cli {
     use lychee_lib::{InputSource, ResponseBody};
     use predicates::str::{contains, is_empty};
     use pretty_assertions::assert_eq;
+    use regex::Regex;
     use serde::Serialize;
     use serde_json::Value;
     use tempfile::NamedTempFile;
@@ -1229,18 +1230,33 @@ mod cli {
 
     #[test]
     fn test_suggests_url_alternatives() -> Result<()> {
-        let mut cmd = main_command();
-        let input = fixtures_path().join("INTERNET_ARCHIVE.md");
-
-        cmd.arg("--suggest")
-            .arg(input)
-            .assert()
-            .failure()
-            .code(2)
-            .stdout(contains("Suggestions"))
-            .stdout(contains("http://web.archive.org/web/"));
+        for _ in 0..3 {
+            // This can be flaky. Try up to 3 times
+            let mut cmd = main_command();
+            let input = fixtures_path().join("INTERNET_ARCHIVE.md");
+
+            cmd.arg("--no-progress").arg("--suggest").arg(input);
+
+            // Run he command and check if the output contains the expected
+            // suggestions
+            let assert = cmd.assert();
+            let output = assert.get_output();
+
+            // We're looking for a suggestion that
+            // - starts with http://web.archive.org/web/
+            // - ends with google.com/jobs.html
+            let re = Regex::new(r"http://web\.archive\.org/web/.*google\.com/jobs\.html").unwrap();
+            if re.is_match(&String::from_utf8_lossy(&output.stdout)) {
+                // Test passed
+                return Ok(());
+            } else {
+                // Wait for a second before retrying
+                std::thread::sleep(std::time::Duration::from_secs(1));
+            }
+        }
 
-        Ok(())
+        // If we reached here, it means the test did not pass after multiple attempts
+        Err("Did not get the expected command output after multiple attempts.".into())
     }
 
     #[tokio::test]