126 lines
3.6 KiB
Go
126 lines
3.6 KiB
Go
package azure
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import (
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"bytes"
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"testing"
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)
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func Test_zeroFillWrite_AppendNoGap(t *testing.T) {
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s := NewStorageSimulator()
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bw := newRandomBlobWriter(&s, 1024*1)
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zw := newZeroFillWriter(&bw)
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if err := s.CreateBlockBlob("a", "b"); err != nil {
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t.Fatal(err)
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}
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firstChunk := randomContents(1024*3 + 512)
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if nn, err := zw.Write("a", "b", 0, bytes.NewReader(firstChunk)); err != nil {
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t.Fatal(err)
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} else if expected := int64(len(firstChunk)); expected != nn {
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t.Fatalf("wrong written bytes count: %v, expected: %v", nn, expected)
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}
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if out, err := s.GetBlob("a", "b"); err != nil {
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t.Fatal(err)
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} else {
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assertBlobContents(t, out, firstChunk)
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}
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secondChunk := randomContents(256)
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if nn, err := zw.Write("a", "b", int64(len(firstChunk)), bytes.NewReader(secondChunk)); err != nil {
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t.Fatal(err)
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} else if expected := int64(len(secondChunk)); expected != nn {
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t.Fatalf("wrong written bytes count: %v, expected: %v", nn, expected)
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}
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if out, err := s.GetBlob("a", "b"); err != nil {
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t.Fatal(err)
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} else {
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assertBlobContents(t, out, append(firstChunk, secondChunk...))
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}
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}
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func Test_zeroFillWrite_StartWithGap(t *testing.T) {
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s := NewStorageSimulator()
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bw := newRandomBlobWriter(&s, 1024*2)
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zw := newZeroFillWriter(&bw)
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if err := s.CreateBlockBlob("a", "b"); err != nil {
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t.Fatal(err)
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}
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chunk := randomContents(1024 * 5)
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padding := int64(1024*2 + 256)
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if nn, err := zw.Write("a", "b", padding, bytes.NewReader(chunk)); err != nil {
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t.Fatal(err)
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} else if expected := int64(len(chunk)); expected != nn {
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t.Fatalf("wrong written bytes count: %v, expected: %v", nn, expected)
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}
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if out, err := s.GetBlob("a", "b"); err != nil {
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t.Fatal(err)
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} else {
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assertBlobContents(t, out, append(make([]byte, padding), chunk...))
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}
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}
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func Test_zeroFillWrite_AppendWithGap(t *testing.T) {
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s := NewStorageSimulator()
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bw := newRandomBlobWriter(&s, 1024*2)
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zw := newZeroFillWriter(&bw)
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if err := s.CreateBlockBlob("a", "b"); err != nil {
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t.Fatal(err)
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}
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firstChunk := randomContents(1024*3 + 512)
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if _, err := zw.Write("a", "b", 0, bytes.NewReader(firstChunk)); err != nil {
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t.Fatal(err)
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}
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if out, err := s.GetBlob("a", "b"); err != nil {
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t.Fatal(err)
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} else {
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assertBlobContents(t, out, firstChunk)
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}
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secondChunk := randomContents(256)
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padding := int64(1024 * 4)
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if nn, err := zw.Write("a", "b", int64(len(firstChunk))+padding, bytes.NewReader(secondChunk)); err != nil {
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t.Fatal(err)
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} else if expected := int64(len(secondChunk)); expected != nn {
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t.Fatalf("wrong written bytes count: %v, expected: %v", nn, expected)
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}
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if out, err := s.GetBlob("a", "b"); err != nil {
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t.Fatal(err)
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} else {
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assertBlobContents(t, out, append(firstChunk, append(make([]byte, padding), secondChunk...)...))
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}
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}
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func Test_zeroFillWrite_LiesWithinSize(t *testing.T) {
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s := NewStorageSimulator()
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bw := newRandomBlobWriter(&s, 1024*2)
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zw := newZeroFillWriter(&bw)
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if err := s.CreateBlockBlob("a", "b"); err != nil {
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t.Fatal(err)
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}
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firstChunk := randomContents(1024 * 3)
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if _, err := zw.Write("a", "b", 0, bytes.NewReader(firstChunk)); err != nil {
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t.Fatal(err)
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}
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if out, err := s.GetBlob("a", "b"); err != nil {
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t.Fatal(err)
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} else {
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assertBlobContents(t, out, firstChunk)
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}
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// in this case, zerofill won't be used
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secondChunk := randomContents(256)
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if nn, err := zw.Write("a", "b", 0, bytes.NewReader(secondChunk)); err != nil {
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t.Fatal(err)
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} else if expected := int64(len(secondChunk)); expected != nn {
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t.Fatalf("wrong written bytes count: %v, expected: %v", nn, expected)
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}
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if out, err := s.GetBlob("a", "b"); err != nil {
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t.Fatal(err)
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} else {
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assertBlobContents(t, out, append(secondChunk, firstChunk[len(secondChunk):]...))
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}
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}
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