1 files changed, 87 insertions, 0 deletions
diff --git a/internal/lsp/server_test.go b/internal/lsp/server_test.go
new file mode 100644
index 0000000..4f24b57
--- /dev/null
+++ b/internal/lsp/server_test.go
@@ -0,0 +1,87 @@
+package lsp
+
+import (
+	"context"
+	"testing"
+
+	"codeberg.org/snonux/hexai/internal/appconfig"
+	"codeberg.org/snonux/hexai/internal/llm"
+	"codeberg.org/snonux/hexai/internal/runtimeconfig"
+)
+
+func TestPromptSetUsesConfigStoreSnapshot(t *testing.T) {
+	s := newTestServer()
+	initial := appconfig.App{MaxTokens: 77}
+	store := runtimeconfig.New(initial)
+	s.configStore = store
+
+	got := s.promptSet()
+	if got.MaxTokens != 77 {
+		t.Fatalf("expected initial snapshot, got %+v", got)
+	}
+
+	updated := initial
+	updated.MaxTokens = 42
+	store.Set(updated)
+
+	got = s.promptSet()
+	if got.MaxTokens != 42 {
+		t.Fatalf("expected updated snapshot, got %+v", got)
+	}
+}
+
+func TestChatConfigRespectsExplicitEmptySuffix(t *testing.T) {
+	s := newTestServer()
+	cfg := s.cfg
+	cfg.ChatSuffix = ""
+	cfg.ChatPrefixes = []string{"#"}
+	s.cfg = cfg
+
+	suffix, prefixes, suffixChar := s.chatConfig()
+	if suffix != "" {
+		t.Fatalf("expected explicit empty suffix, got %q", suffix)
+	}
+	if len(prefixes) == 0 || prefixes[0] != "#" {
+		t.Fatalf("expected custom prefixes, got %v", prefixes)
+	}
+	if suffixChar != '>' {
+		t.Fatalf("expected default suffix char fallback, got %q", suffixChar)
+	}
+}
+
+func TestChatConfigTrimsWhitespaceSuffix(t *testing.T) {
+	s := newTestServer()
+	cfg := s.cfg
+	cfg.ChatSuffix = "  >>  "
+	s.cfg = cfg
+
+	suffix, _, suffixChar := s.chatConfig()
+	if suffix != ">>" {
+		t.Fatalf("expected trimmed suffix '>>', got %q", suffix)
+	}
+	if suffixChar != '>' {
+		t.Fatalf("expected suffixChar to use trimmed value, got %q", suffixChar)
+	}
+}
+
+type stubLLMClient struct{}
+
+func (stubLLMClient) Chat(context.Context, []llm.Message, ...llm.RequestOption) (string, error) {
+	return "", nil
+}
+func (stubLLMClient) Name() string         { return "stub" }
+func (stubLLMClient) DefaultModel() string { return "stub-model" }
+
+func TestServerApplyOptions(t *testing.T) {
+	s := newTestServer()
+	client := stubLLMClient{}
+	cfg := appconfig.App{MaxTokens: 88}
+	opts := ServerOptions{Config: &cfg, Client: client}
+	s.ApplyOptions(opts)
+	if s.currentLLMClient() != client {
+		t.Fatalf("expected client to be replaced")
+	}
+	if got := s.currentConfig().MaxTokens; got != 88 {
+		t.Fatalf("expected config to update, got %d", got)
+	}
+}