diff --git a/condition_test.go b/condition_test.go
new file mode 100644
index 0000000..4d7fcda
--- /dev/null
+++ b/condition_test.go
@@ -0,0 +1,41 @@
+package condition_test
+
+import (
+	"testing"
+
+	"git.fsdpf.net/go/condition"
+	"git.fsdpf.net/go/db"
+	"github.com/stretchr/testify/suite"
+
+	_ "git.fsdpf.net/go/db/dialect/sqlite3"
+	db_eng "git.fsdpf.net/go/db/engine"
+	"git.fsdpf.net/go/db/sqlgen"
+)
+
+type conditionTest struct {
+	suite.Suite
+	db  *db.Database
+	esg sqlgen.ExpressionSQLGenerator
+}
+
+func TestConditionSuite(t *testing.T) {
+	suite.Run(t, new(conditionTest))
+}
+
+func (t *conditionTest) SetupSuite() {
+	database := db_eng.Open(map[string]db_eng.DBConfig{
+		"condition-test": db_eng.NewDBConfig("sqlite3", db_eng.WithSQLiteFile(":memory:")),
+	})
+	t.db = database.Connection("condition-test")
+}
+
+func (t *conditionTest) TestToSql() {
+	cond := condition.New(condition.Describe("测试"))
+	cond.SetExpr(condition.NewExpr("User", "name", condition.Operator(condition.LIKE), condition.Token("张三", condition.STRING))).
+		SetExpr(condition.NewExpr("User", "age", condition.Token("18", condition.STRING))).
+		SetExpr(condition.NewExpr("User", "attr->'birthday'", condition.Token("18", condition.STRING))).
+		SetExpr(condition.NewExpr("User", "roles", condition.FieldSqlFn("json_contains", ""), condition.Token("admin", condition.STRING)))
+		// SetExpr(condition.NewExpr("User", "roles", condition.FieldSqlFn("json_contains", ""), condition.Token("admin", condition.STRING)))
+
+	t.T().Log(t.db.From(db.T("users").As("User")).Where(cond.ToSql(nil)).ToSQL())
+}