1 files changed, 59 insertions, 0 deletions
diff --git a/internal/runtimeconfig/store_test.go b/internal/runtimeconfig/store_test.go
new file mode 100644
index 0000000..9973a1a
--- /dev/null
+++ b/internal/runtimeconfig/store_test.go
@@ -0,0 +1,59 @@
+package runtimeconfig
+
+import (
+	"io"
+	"log"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"codeberg.org/snonux/hexai/internal/appconfig"
+)
+
+func TestStoreReloadSkipsEnvOverrides(t *testing.T) {
+	logger := log.New(io.Discard, "", 0)
+	tmp := t.TempDir()
+	configDir := filepath.Join(tmp, "hexai")
+	if err := os.MkdirAll(configDir, 0o755); err != nil {
+		t.Fatalf("failed to create config dir: %v", err)
+	}
+	configPath := filepath.Join(configDir, "config.toml")
+	if err := os.WriteFile(configPath, []byte("[general]\nmax_tokens = 64\n"), 0o644); err != nil {
+		t.Fatalf("failed to write config file: %v", err)
+	}
+
+	t.Setenv("XDG_CONFIG_HOME", tmp)
+	t.Setenv("HEXAI_MAX_TOKENS", "321")
+
+	initial := appconfig.Load(logger)
+	if initial.MaxTokens != 321 {
+		t.Fatalf("expected env override to win initial load, got %d", initial.MaxTokens)
+	}
+
+	store := New(initial)
+	if err := os.WriteFile(configPath, []byte("[general]\nmax_tokens = 128\n"), 0o644); err != nil {
+		t.Fatalf("failed to update config file: %v", err)
+	}
+
+	changes, err := store.Reload(logger, appconfig.LoadOptions{IgnoreEnv: true})
+	if err != nil {
+		t.Fatalf("reload failed: %v", err)
+	}
+
+	if snap := store.Snapshot(); snap.MaxTokens != 128 {
+		t.Fatalf("expected reload to apply file value, got %d", snap.MaxTokens)
+	}
+
+	found := false
+	for _, change := range changes {
+		if change.Key == "max_tokens" {
+			found = true
+			if change.Old != "321" || change.New != "128" {
+				t.Fatalf("unexpected change diff: %+v", change)
+			}
+		}
+	}
+	if !found {
+		t.Fatalf("expected max_tokens change in diff, got %#v", changes)
+	}
+}