src-tauri/src/print/mod.rs

@@ -12,3 +12,7 @@ pub mod windows;
 
 #[cfg(unix)]
 pub mod unix;
+
+#[cfg(test)]
+mod tests;
+

src-tauri/src/print/tests.rs

@@ -0,0 +1,90 @@
+#[cfg(test)]
+mod integration_tests {
+    use crate::print::Printer;
+    use crate::print::unix::{build_lp_args, parse_lpstat_d, parse_lpstat_e, parse_lpstat_p, print_target};
+
+    #[test]
+    fn test_printer_model_json_serialization() {
+        let printer = Printer {
+            name: "Epson-Stylus-Pro-4900".to_string(),
+            status: "Idle".to_string(),
+            is_default: true,
+        };
+
+        let json = serde_json::to_string(&printer).expect("Failed to serialize printer");
+        assert!(json.contains(r#""name":"Epson-Stylus-Pro-4900""#));
+        assert!(json.contains(r#""status":"Idle""#));
+        assert!(json.contains(r#""is_default":true"#));
+
+        let deserialized: Printer = serde_json::from_str(&json).expect("Failed to deserialize printer");
+        assert_eq!(deserialized, printer);
+    }
+
+    #[test]
+    fn test_lpstat_e_multiline_and_whitespace_handling() {
+        let sample = "  \n  Epson_SureColor_P900  \n\n  Canon_imagePROGRAF_PRO_1000 \n\n";
+        let parsed = parse_lpstat_e(sample);
+        assert_eq!(parsed, vec!["Epson_SureColor_P900", "Canon_imagePROGRAF_PRO_1000"]);
+    }
+
+    #[test]
+    fn test_lpstat_p_various_printer_states() {
+        let sample = "\
+printer Canon_PRO-1000 is idle. enabled since Fri 12 Jun 2026\n\
+printer Epson_P900 is printing. enabled since Sat 13 Jun 2026\n\
+printer HP_Z9 disabled since Sun 14 Jun 2026 - offline\n\
+printer DNP_DS620 stopped since Mon 15 Jun 2026 - out of ribbon\n\
+printer Custom_Queue unknown state\n\
+";
+        let parsed = parse_lpstat_p(sample);
+        assert_eq!(
+            parsed,
+            vec![
+                ("Canon_PRO-1000".to_string(), "Idle".to_string()),
+                ("Epson_P900".to_string(), "Printing".to_string()),
+                ("HP_Z9".to_string(), "Stopped".to_string()),
+                ("DNP_DS620".to_string(), "Stopped".to_string()),
+                ("Custom_Queue".to_string(), "Unknown".to_string()),
+            ]
+        );
+    }
+
+    #[test]
+    fn test_lpstat_d_with_trailing_spaces_and_tabs() {
+        let sample = "system default destination:   Canon_PRO-1000\t  \n";
+        assert_eq!(parse_lpstat_d(sample), Some("Canon_PRO-1000".to_string()));
+    }
+
+    #[test]
+    fn test_multi_page_batch_spool_arguments() {
+        let pages = vec!["target_01.tif", "target_02.tif", "target_03.tif"];
+        let printer = "Epson_Stylus_SX420W";
+
+        for (_idx, page) in pages.iter().enumerate() {
+            let path = format!("/tmp/profiling_run/{}", page);
+            let args_raw = build_lp_args(printer, &path, false);
+            assert_eq!(args_raw[0], "-d");
+            assert_eq!(args_raw[1], printer);
+            assert_eq!(args_raw[2], "-t");
+            assert_eq!(args_raw[3], format!("ICCery Target - {}", page));
+            assert_eq!(args_raw[4], "-o");
+            assert_eq!(args_raw[5], "raw");
+            assert_eq!(args_raw[6], path);
+
+            let args_fallback = build_lp_args(printer, &path, true);
+            assert_eq!(args_fallback[4], "-o");
+            assert_eq!(args_fallback[5], "ColorModel=Gray");
+            assert_eq!(args_fallback[6], "-o");
+            assert_eq!(args_fallback[7], "cm-calibration");
+            assert_eq!(args_fallback[8], path);
+        }
+    }
+
+    #[test]
+    fn test_print_target_nonexistent_file_handling() {
+        let res = print_target("Test_Printer", "/non/existent/path/target_page_99.tif", false);
+        assert!(res.is_err());
+        let err = res.unwrap_err();
+        assert!(err.contains("Target TIFF file not found"));
+    }
+}