Add archived parquet as int. package (#9912)

Since github.com/minio/parquet-go is archived add it as internal package.

pkg/s3select/internal/parquet-go/encoding/common_test.go

@@ -0,0 +1,43 @@
+/*
+ * Minio Cloud Storage, (C) 2019 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package encoding
+
+import (
+	"math"
+	"reflect"
+	"testing"
+)
+
+func TestVarIntToBytes(t *testing.T) {
+	testCases := []struct {
+		ui64           uint64
+		expectedResult []byte
+	}{
+		{0, []byte{0}},
+		{1, []byte{1}},
+		{0x7F, []byte{127}},
+		{0x80, []byte{128, 1}},
+		{uint64(math.MaxUint64), []byte{255, 255, 255, 255, 255, 255, 255, 255, 255, 1}},
+	}
+
+	for i, testCase := range testCases {
+		result := varIntEncode(testCase.ui64)
+		if !reflect.DeepEqual(result, testCase.expectedResult) {
+			t.Fatalf("case %v: expected: %v, got: %v", i+1, testCase.expectedResult, result)
+		}
+	}
+}