/
utils_test.go
66 lines (57 loc) · 1.33 KB
/
utils_test.go
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// Copyright (c) 2014-2016 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package main
import (
"io"
"reflect"
"strings"
"testing"
"github.com/davecgh/go-spew/spew"
)
// fakeReader implements the io.Reader interface and is used to force
// read errors
type fakeReader struct {
n int
err error
}
// Read returns the fake reader error and the lesser of the fake reader value
// and the length of p.
func (r *fakeReader) Read(p []byte) (int, error) {
n := r.n
if n > len(p) {
n = len(p)
}
return n, r.err
}
var fakeCSV = `
20000,40000,20000
`
var fakeInvalidCSV = `
foo,bar,spam
`
func TestReadCSV(t *testing.T) {
txCurve, err := readCSV(strings.NewReader(fakeCSV))
if err != nil {
t.Errorf("readCSV error: %v", err)
}
expectedTxCurve := map[int32]*Row{
20000: &Row{
utxoCount: 40000,
txCount: 20000,
},
}
if !reflect.DeepEqual(txCurve, expectedTxCurve) {
t.Errorf("readCSV got: %v want: %v", spew.Sdump(txCurve), spew.Sdump(expectedTxCurve))
}
}
func TestReadCSVErrors(t *testing.T) {
_, err := readCSV(&fakeReader{n: 0, err: io.ErrClosedPipe})
if err == nil {
t.Errorf("readCSV expected error, got %v", err)
}
_, err = readCSV(strings.NewReader(fakeInvalidCSV))
if err == nil {
t.Errorf("readCSV expected error, got %v", err)
}
}