test(util): port ProxyItemTest

Both testThrowsOnMalformedUrl and testUrlFormatting are marked #[ignore]
because ProxyItem::new reaches a todo!() in the php-shim.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

3 files changed, 62 insertions, 0 deletions

diff --git a/crates/shirabe/tests/util/http/mod.rs b/crates/shirabe/tests/util/http/mod.rs
new file mode 100644
index 0000000..36dbaee
--- /dev/null
+++ b/crates/shirabe/tests/util/http/mod.rs
@@ -0,0 +1 @@
+mod proxy_item_test;
diff --git a/crates/shirabe/tests/util/http/proxy_item_test.rs b/crates/shirabe/tests/util/http/proxy_item_test.rs
index 2c2be9e..4843945 100644
--- a/crates/shirabe/tests/util/http/proxy_item_test.rs
+++ b/crates/shirabe/tests/util/http/proxy_item_test.rs
@@ -1 +1,61 @@
 //! ref: composer/tests/Composer/Test/Util/Http/ProxyItemTest.php
+
+use shirabe::util::http::proxy_item::ProxyItem;
+
+#[test]
+#[ignore = "ProxyItem::new reaches a todo!() in the php-shim"]
+fn test_throws_on_malformed_url() {
+    for url in data_malformed() {
+        assert!(ProxyItem::new(url.to_string(), "http_proxy".to_string()).is_err());
+    }
+}
+
+fn data_malformed() -> Vec<&'static str> {
+    vec![
+        // 'ws-r'
+        "http://user\rname@localhost:80",
+        // 'ws-n'
+        "http://user\nname@localhost:80",
+        // 'ws-t'
+        "http://user\tname@localhost:80",
+        // 'no-host'
+        "localhost",
+        // 'no-port'
+        "scheme://localhost",
+        // 'port-0'
+        "http://localhost:0",
+        // 'port-big'
+        "http://localhost:65536",
+    ]
+}
+
+#[test]
+#[ignore = "ProxyItem::new reaches a todo!() in the php-shim"]
+fn test_url_formatting() {
+    for (url, expected) in data_formatting() {
+        let proxy_item = ProxyItem::new(url.to_string(), "http_proxy".to_string()).unwrap();
+        let proxy = proxy_item.to_request_proxy("http".to_string());
+
+        assert_eq!(expected, proxy.get_status(None).unwrap());
+    }
+}
+
+fn data_formatting() -> Vec<(&'static str, &'static str)> {
+    // url, expected
+    vec![
+        // 'none'
+        ("http://proxy.com:8888", "http://proxy.com:8888"),
+        // 'lowercases-scheme'
+        ("HTTP://proxy.com:8888", "http://proxy.com:8888"),
+        // 'adds-http-scheme'
+        ("proxy.com:80", "http://proxy.com:80"),
+        // 'adds-http-port'
+        ("http://proxy.com", "http://proxy.com:80"),
+        // 'adds-https-port'
+        ("https://proxy.com", "https://proxy.com:443"),
+        // 'removes-user'
+        ("http://user@proxy.com:6180", "http://***@proxy.com:6180"),
+        // 'removes-user-pass'
+        ("http://user:p%40ss@proxy.com:6180", "http://***:***@proxy.com:6180"),
+    ]
+}
diff --git a/crates/shirabe/tests/util/main.rs b/crates/shirabe/tests/util/main.rs
index 2a5e81a..05e6f9a 100644
--- a/crates/shirabe/tests/util/main.rs
+++ b/crates/shirabe/tests/util/main.rs
@@ -1,4 +1,5 @@
 mod forgejo_url_test;
+mod http;
 mod platform_test;
 mod silencer_test;
 mod tar_test;