1 files changed, 121 insertions, 0 deletions
diff --git a/internal/store/oauth_tokens_test.go b/internal/store/oauth_tokens_test.go
new file mode 100644
index 0000000..20c4a79
--- /dev/null
+++ b/internal/store/oauth_tokens_test.go
@@ -0,0 +1,121 @@
+package store
+
+import (
+	"database/sql"
+	"path/filepath"
+	"testing"
+	"time"
+
+	_ "github.com/mattn/go-sqlite3"
+	"golang.org/x/oauth2"
+)
+
+func newOAuthTokensTestStore(t *testing.T) *Store {
+	t.Helper()
+	dbPath := filepath.Join(t.TempDir(), "test.db")
+	db, err := sql.Open("sqlite3", dbPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { db.Close() })
+	if _, err := db.Exec(`
+		CREATE TABLE oauth_tokens (
+			source TEXT PRIMARY KEY,
+			access_token TEXT NOT NULL,
+			refresh_token TEXT NOT NULL,
+			token_type TEXT NOT NULL DEFAULT 'Bearer',
+			expiry DATETIME,
+			updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+		)
+	`); err != nil {
+		t.Fatal(err)
+	}
+	return &Store{db: db}
+}
+
+func TestGetOAuthToken_NotConnected_ReturnsNil(t *testing.T) {
+	s := newOAuthTokensTestStore(t)
+
+	tok, err := s.GetOAuthToken("google_tasks")
+	if err != nil {
+		t.Fatalf("GetOAuthToken: %v", err)
+	}
+	if tok != nil {
+		t.Errorf("tok = %+v, want nil", tok)
+	}
+}
+
+func TestSaveOAuthToken_ThenGet_RoundTrips(t *testing.T) {
+	s := newOAuthTokensTestStore(t)
+
+	expiry := time.Now().Add(time.Hour).Truncate(time.Second)
+	in := &oauth2.Token{
+		AccessToken:  "access-1",
+		RefreshToken: "refresh-1",
+		TokenType:    "Bearer",
+		Expiry:       expiry,
+	}
+	if err := s.SaveOAuthToken("google_tasks", in); err != nil {
+		t.Fatalf("SaveOAuthToken: %v", err)
+	}
+
+	got, err := s.GetOAuthToken("google_tasks")
+	if err != nil {
+		t.Fatalf("GetOAuthToken: %v", err)
+	}
+	if got == nil {
+		t.Fatal("got nil, want a token")
+	}
+	if got.AccessToken != "access-1" || got.RefreshToken != "refresh-1" || got.TokenType != "Bearer" {
+		t.Errorf("got = %+v, want access-1/refresh-1/Bearer", got)
+	}
+	if !got.Expiry.Equal(expiry) {
+		t.Errorf("Expiry = %v, want %v", got.Expiry, expiry)
+	}
+}
+
+func TestSaveOAuthToken_Upserts(t *testing.T) {
+	s := newOAuthTokensTestStore(t)
+
+	if err := s.SaveOAuthToken("google_tasks", &oauth2.Token{AccessToken: "old", RefreshToken: "refresh-1"}); err != nil {
+		t.Fatal(err)
+	}
+	if err := s.SaveOAuthToken("google_tasks", &oauth2.Token{AccessToken: "new", RefreshToken: "refresh-2"}); err != nil {
+		t.Fatal(err)
+	}
+
+	got, err := s.GetOAuthToken("google_tasks")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.AccessToken != "new" || got.RefreshToken != "refresh-2" {
+		t.Errorf("got = %+v, want access token updated to new/refresh-2", got)
+	}
+
+	var count int
+	if err := s.db.QueryRow(`SELECT COUNT(*) FROM oauth_tokens`).Scan(&count); err != nil {
+		t.Fatal(err)
+	}
+	if count != 1 {
+		t.Errorf("row count = %d, want 1 (upsert, not insert)", count)
+	}
+}
+
+func TestDeleteOAuthToken_RemovesRow(t *testing.T) {
+	s := newOAuthTokensTestStore(t)
+
+	if err := s.SaveOAuthToken("google_tasks", &oauth2.Token{AccessToken: "a", RefreshToken: "r"}); err != nil {
+		t.Fatal(err)
+	}
+	if err := s.DeleteOAuthToken("google_tasks"); err != nil {
+		t.Fatalf("DeleteOAuthToken: %v", err)
+	}
+
+	got, err := s.GetOAuthToken("google_tasks")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got != nil {
+		t.Errorf("got = %+v, want nil after delete", got)
+	}
+}