1 files changed, 97 insertions, 0 deletions

diff --git a/internal/config/config_test.go b/internal/config/config_test.go
index e1df1aa..5fa159e 100644
--- a/internal/config/config_test.go
+++ b/internal/config/config_test.go
@@ -2,6 +2,7 @@ package config
 
 import (
         "os"
+        "strings"
         "testing"
         "time"
 )
@@ -240,6 +241,102 @@ func TestSaveAndLoad(t *testing.T) {
         }
 }
 
+func TestNpubNormalization(t *testing.T) {
+        // Create a test key to get a valid npub
+        tmpfile, err := os.CreateTemp("", "config-*.yaml")
+        if err != nil {
+                t.Fatal(err)
+        }
+        defer os.Remove(tmpfile.Name())
+
+        // Use a real npub for testing
+        configData := `
+server:
+  grpc_addr: ":50051"
+  http_addr: ":8080"
+
+database:
+  path: "test.db"
+
+auth:
+  enabled: true
+  allowed_npubs:
+    - npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6
+    - npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft
+`
+
+        if _, err := tmpfile.Write([]byte(configData)); err != nil {
+                t.Fatal(err)
+        }
+        tmpfile.Close()
+
+        cfg, err := Load(tmpfile.Name())
+        if err != nil {
+                t.Fatalf("failed to load config: %v", err)
+        }
+
+        // Verify npubs were normalized to hex
+        if len(cfg.Auth.AllowedNpubs) != 2 {
+                t.Errorf("expected 2 allowed npubs, got %d", len(cfg.Auth.AllowedNpubs))
+        }
+
+        // Check that they're hex format (64 chars, not npub1...)
+        for i, pubkey := range cfg.Auth.AllowedNpubs {
+                if len(pubkey) != 64 {
+                        t.Errorf("npub %d: expected 64 hex chars, got %d", i, len(pubkey))
+                }
+                if pubkey[:5] == "npub1" {
+                        t.Errorf("npub %d: should be normalized to hex, still in npub format", i)
+                }
+        }
+
+        // Verify the actual hex values
+        expectedHex1 := "3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d"
+        expectedHex2 := "fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52"
+
+        if cfg.Auth.AllowedNpubs[0] != expectedHex1 {
+                t.Errorf("npub 0: expected %s, got %s", expectedHex1, cfg.Auth.AllowedNpubs[0])
+        }
+        if cfg.Auth.AllowedNpubs[1] != expectedHex2 {
+                t.Errorf("npub 1: expected %s, got %s", expectedHex2, cfg.Auth.AllowedNpubs[1])
+        }
+}
+
+func TestNpubValidation(t *testing.T) {
+        tmpfile, err := os.CreateTemp("", "config-*.yaml")
+        if err != nil {
+                t.Fatal(err)
+        }
+        defer os.Remove(tmpfile.Name())
+
+        // Invalid: hex format instead of npub
+        configData := `
+server:
+  grpc_addr: ":50051"
+  http_addr: ":8080"
+
+database:
+  path: "test.db"
+
+auth:
+  allowed_npubs:
+    - 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d
+`
+
+        if _, err := tmpfile.Write([]byte(configData)); err != nil {
+                t.Fatal(err)
+        }
+        tmpfile.Close()
+
+        _, err = Load(tmpfile.Name())
+        if err == nil {
+                t.Error("expected error for hex format in allowed_npubs, got nil")
+        }
+        if err != nil && !strings.Contains(err.Error(), "must start with 'npub1'") {
+                t.Errorf("expected 'must start with npub1' error, got: %v", err)
+        }
+}
+
 func TestDurationParsing(t *testing.T) {
         // Create config with durations
         tmpfile, err := os.CreateTemp("", "config-*.yaml")