mirror of
https://github.com/dolthub/dolt.git
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107 lines
2.1 KiB
Go
107 lines
2.1 KiB
Go
// Copyright 2019 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package iohelp
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import (
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"errors"
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"reflect"
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"testing"
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"github.com/dolthub/dolt/go/libraries/utils/test"
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)
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type test16ByteWriter struct {
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Data []byte
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}
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func (tw *test16ByteWriter) Write(p []byte) (n int, err error) {
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toCopy := 16
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if len(p) < toCopy {
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toCopy = len(p)
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}
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tw.Data = append(tw.Data, p[:toCopy]...)
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return toCopy, nil
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}
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func TestWriteAll(t *testing.T) {
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t16 := &test16ByteWriter{}
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data := test.RandomData(1000)
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err := WriteAll(t16, data)
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if err != nil {
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t.Error("Unexpected error", err)
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}
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if !reflect.DeepEqual(data, t16.Data) {
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t.Error("Failed to write correctly")
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}
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}
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func TestWriteNoErrWrites(t *testing.T) {
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t16 := &test16ByteWriter{}
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data := test.RandomData(32)
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var prim int32
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err := WritePrimIfNoErr(t16, prim, nil)
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if err != nil {
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t.Error("Unexpected error")
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}
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err = WriteIfNoErr(t16, data, err)
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if err != nil {
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t.Error("Unexpected error")
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}
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sizeAfterSuccesses := len(t16.Data)
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err = errors.New("some error")
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WritePrimIfNoErr(t16, prim, err)
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if err == nil {
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t.Error("Expected error")
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}
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err = WriteIfNoErr(t16, data, err)
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if err == nil {
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t.Error("Expected error")
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}
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if len(t16.Data) != sizeAfterSuccesses {
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t.Error("Should not have written data after err set to non nil.")
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}
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}
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func TestWriteLine(t *testing.T) {
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lineStr := "This is a test of writing a line."
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t16 := &test16ByteWriter{}
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err := WriteLine(t16, lineStr)
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if err != nil {
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t.Error("Unexpected error", err)
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}
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resultStr := string(t16.Data)
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if resultStr != lineStr+"\n" {
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t.Errorf(`"%s" != "%s"`, resultStr, lineStr)
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}
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}
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