[PATCH proxmox 2/3] http: tls: implement `PartialEq` for `SslVerifyError`

[Shannon Sterz <s.sterz@proxmox.com>]

this is useful for writting integration tests, but could also come in
handy if such errors ever get propagated to a yew front-end. as yew
requires `PartialEq` for `Properties` to implement its re-rendering
logic.

Signed-off-by: Shannon Sterz <s.sterz@proxmox.com>
---
 proxmox-http/src/tls.rs | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/proxmox-http/src/tls.rs b/proxmox-http/src/tls.rs
index d7a7aa98..aa77d4cf 100644
--- a/proxmox-http/src/tls.rs
+++ b/proxmox-http/src/tls.rs
@@ -27,6 +27,35 @@ pub enum SslVerifyError {
     UntrustedCertificate { fingerprint: String },
 }
 
+// Useful for testing. Can't hide it behind `#[cfg(test)]` for integration tests, though.
+impl PartialEq for SslVerifyError {
+    fn eq(&self, other: &Self) -> bool {
+        match (self, other) {
+            (SslVerifyError::NoCertificate, SslVerifyError::NoCertificate) => true,
+            (SslVerifyError::InvalidFingerprint(_), SslVerifyError::InvalidFingerprint(_)) => true,
+            (
+                SslVerifyError::FingerprintMismatch {
+                    fingerprint: a_fingerprint,
+                    expected: a_expected,
+                },
+                SslVerifyError::FingerprintMismatch {
+                    fingerprint: b_fingerprint,
+                    expected: b_expected,
+                },
+            ) => a_fingerprint == b_fingerprint && a_expected == b_expected,
+            (
+                SslVerifyError::UntrustedCertificate {
+                    fingerprint: a_fingerprint,
+                },
+                SslVerifyError::UntrustedCertificate {
+                    fingerprint: b_fingerprint,
+                },
+            ) => a_fingerprint == b_fingerprint,
+            _ => false,
+        }
+    }
+}
+
 /// Intended as an openssl verification callback.
 ///
 /// If the 'PROXMOX_NEW_TLS_CHECK' environment variable is set to "1",
-- 
2.47.3