vitess.io/vitess@v0.16.2/go/mysql/collations/internal/testutil/golden.go (about)

     1  /*
     2  Copyright 2021 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package testutil
    18  
    19  import (
    20  	"compress/gzip"
    21  	"encoding/gob"
    22  	"io"
    23  	"os"
    24  )
    25  
    26  type GoldenCase struct {
    27  	Lang    Lang
    28  	Text    []byte
    29  	Weights map[string][]byte
    30  }
    31  
    32  type GoldenTest struct {
    33  	Name  string
    34  	Cases []GoldenCase
    35  }
    36  
    37  func (golden *GoldenTest) Encode(w io.Writer) error {
    38  	gw := gzip.NewWriter(w)
    39  	defer gw.Close()
    40  
    41  	enc := gob.NewEncoder(gw)
    42  	return enc.Encode(golden)
    43  }
    44  
    45  func (golden *GoldenTest) EncodeToFile(path string) error {
    46  	f, err := os.Create(path)
    47  	if err != nil {
    48  		return err
    49  	}
    50  	defer f.Close()
    51  	return golden.Encode(f)
    52  }
    53  
    54  func (golden *GoldenTest) Decode(r io.Reader) error {
    55  	gr, err := gzip.NewReader(r)
    56  	if err != nil {
    57  		return err
    58  	}
    59  	defer gr.Close()
    60  
    61  	dec := gob.NewDecoder(gr)
    62  	return dec.Decode(golden)
    63  }
    64  
    65  func (golden *GoldenTest) DecodeFromFile(path string) error {
    66  	f, err := os.Open(path)
    67  	if err != nil {
    68  		return err
    69  	}
    70  	defer f.Close()
    71  	return golden.Decode(f)
    72  }