65 lines
1.3 KiB
Go
65 lines
1.3 KiB
Go
package ioutils // import "github.com/docker/docker/pkg/ioutils"
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import (
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"bytes"
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"strings"
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"testing"
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)
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func TestWriteCloserWrapperClose(t *testing.T) {
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called := false
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writer := bytes.NewBuffer([]byte{})
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wrapper := NewWriteCloserWrapper(writer, func() error {
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called = true
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return nil
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})
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if err := wrapper.Close(); err != nil {
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t.Fatal(err)
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}
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if !called {
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t.Fatalf("writeCloserWrapper should have call the anonymous function.")
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}
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}
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func TestNopWriteCloser(t *testing.T) {
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writer := bytes.NewBuffer([]byte{})
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wrapper := NopWriteCloser(writer)
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if err := wrapper.Close(); err != nil {
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t.Fatal("NopWriteCloser always return nil on Close.")
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}
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}
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func TestNopWriter(t *testing.T) {
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nw := &NopWriter{}
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l, err := nw.Write([]byte{'c'})
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if err != nil {
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t.Fatal(err)
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}
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if l != 1 {
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t.Fatalf("Expected 1 got %d", l)
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}
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}
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func TestWriteCounter(t *testing.T) {
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dummy1 := "This is a dummy string."
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dummy2 := "This is another dummy string."
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totalLength := int64(len(dummy1) + len(dummy2))
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reader1 := strings.NewReader(dummy1)
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reader2 := strings.NewReader(dummy2)
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var buffer bytes.Buffer
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wc := NewWriteCounter(&buffer)
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reader1.WriteTo(wc)
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reader2.WriteTo(wc)
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if wc.Count != totalLength {
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t.Errorf("Wrong count: %d vs. %d", wc.Count, totalLength)
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}
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if buffer.String() != dummy1+dummy2 {
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t.Error("Wrong message written")
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}
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}
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