| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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 iceberg_test |
| |
| import ( |
| "strings" |
| "testing" |
| |
| "github.com/apache/iceberg-go" |
| "github.com/stretchr/testify/assert" |
| "github.com/stretchr/testify/require" |
| ) |
| |
| func TestParseTransform(t *testing.T) { |
| tests := []struct { |
| toparse string |
| expected iceberg.Transform |
| }{ |
| {"identity", iceberg.IdentityTransform{}}, |
| {"IdEnTiTy", iceberg.IdentityTransform{}}, |
| {"void", iceberg.VoidTransform{}}, |
| {"VOId", iceberg.VoidTransform{}}, |
| {"year", iceberg.YearTransform{}}, |
| {"yEAr", iceberg.YearTransform{}}, |
| {"month", iceberg.MonthTransform{}}, |
| {"MONtH", iceberg.MonthTransform{}}, |
| {"day", iceberg.DayTransform{}}, |
| {"DaY", iceberg.DayTransform{}}, |
| {"hour", iceberg.HourTransform{}}, |
| {"hOuR", iceberg.HourTransform{}}, |
| {"bucket[5]", iceberg.BucketTransform{NumBuckets: 5}}, |
| {"bucket[100]", iceberg.BucketTransform{NumBuckets: 100}}, |
| {"BUCKET[5]", iceberg.BucketTransform{NumBuckets: 5}}, |
| {"bUCKeT[100]", iceberg.BucketTransform{NumBuckets: 100}}, |
| {"truncate[10]", iceberg.TruncateTransform{Width: 10}}, |
| {"truncate[255]", iceberg.TruncateTransform{Width: 255}}, |
| {"TRUNCATE[10]", iceberg.TruncateTransform{Width: 10}}, |
| {"tRuNCATe[255]", iceberg.TruncateTransform{Width: 255}}, |
| } |
| |
| for _, tt := range tests { |
| t.Run(tt.toparse, func(t *testing.T) { |
| transform, err := iceberg.ParseTransform(tt.toparse) |
| require.NoError(t, err) |
| assert.Equal(t, tt.expected, transform) |
| |
| txt, err := transform.MarshalText() |
| assert.NoError(t, err) |
| assert.Equal(t, strings.ToLower(tt.toparse), string(txt)) |
| }) |
| } |
| |
| errorTests := []struct { |
| name string |
| toparse string |
| }{ |
| {"foobar", "foobar"}, |
| {"bucket no brackets", "bucket"}, |
| {"truncate no brackets", "truncate"}, |
| {"bucket no val", "bucket[]"}, |
| {"truncate no val", "truncate[]"}, |
| {"bucket neg", "bucket[-1]"}, |
| {"truncate neg", "truncate[-1]"}, |
| } |
| |
| for _, tt := range errorTests { |
| t.Run(tt.name, func(t *testing.T) { |
| tr, err := iceberg.ParseTransform(tt.toparse) |
| assert.Nil(t, tr) |
| assert.ErrorIs(t, err, iceberg.ErrInvalidTransform) |
| assert.ErrorContains(t, err, tt.toparse) |
| }) |
| } |
| } |