add insert statement

insert_test.go

@@ -0,0 +1,40 @@
+package sqimple
+
+import (
+	"testing"
+
+	"github.com/alecthomas/assert/v2"
+)
+
+func TestInsert(t *testing.T) {
+	type TestCase struct {
+		In     *InsertStatement
+		Args   []any
+		String string
+	}
+
+	testCases := []TestCase{
+		{
+			In:     Insert("customer").Columns("name").Values(Values{"name": "Adam"}),
+			Args:   []any{"Adam"},
+			String: "insert into customer (name) values (?)",
+		},
+		{
+			In:     Insert("customer").Columns("name").Values(Values{"name": "Adam"}, Values{"name": "Bernard"}),
+			Args:   []any{"Adam", "Bernard"},
+			String: "insert into customer (name) values (?), (?)",
+		},
+		{
+			In:     Insert("customer").Or("update").Columns("id", "name").Values(Values{"id": 1234, "name": "Adam"}),
+			Args:   []any{1234, "Adam"},
+			String: "insert or update into customer (id, name) values (?, ?)",
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.String, func(t *testing.T) {
+			assert.Equal(t, testCase.Args, testCase.In.Args(), "collected arguments incorrectly")
+			assert.Equal(t, testCase.String, testCase.In.String(), "stringified incorrectly")
+		})
+	}
+}