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5b6a77058a
We can either preallocate storage for a file or sparsify it. This detects a pack file as sparse if it contains an all zero block or consists of only one block. As the file sparsification is just an approximation, hide it behind a `--sparse` parameter.
39 lines
847 B
Go
39 lines
847 B
Go
package restorer
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import (
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"io/ioutil"
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"testing"
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rtest "github.com/restic/restic/internal/test"
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)
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func TestFilesWriterBasic(t *testing.T) {
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dir, cleanup := rtest.TempDir(t)
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defer cleanup()
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w := newFilesWriter(1)
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f1 := dir + "/f1"
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f2 := dir + "/f2"
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rtest.OK(t, w.writeToFile(f1, []byte{1}, 0, 2, false))
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rtest.Equals(t, 0, len(w.buckets[0].files))
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rtest.OK(t, w.writeToFile(f2, []byte{2}, 0, 2, false))
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rtest.Equals(t, 0, len(w.buckets[0].files))
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rtest.OK(t, w.writeToFile(f1, []byte{1}, 1, -1, false))
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rtest.Equals(t, 0, len(w.buckets[0].files))
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rtest.OK(t, w.writeToFile(f2, []byte{2}, 1, -1, false))
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rtest.Equals(t, 0, len(w.buckets[0].files))
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buf, err := ioutil.ReadFile(f1)
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rtest.OK(t, err)
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rtest.Equals(t, []byte{1, 1}, buf)
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buf, err = ioutil.ReadFile(f2)
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rtest.OK(t, err)
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rtest.Equals(t, []byte{2, 2}, buf)
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}
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