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package hdfs
import (
"os"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func waitTruncate(t *testing.T, client *Client, name string, size int64) {
done, err := client.Truncate(name, size)
require.NoError(t, err)
var stat os.FileInfo
if !done {
for i := 0; i < 5; i++ {
stat, err = client.Stat(name)
require.NoError(t, err)
if stat.Size() == size {
break
}
time.Sleep(500 * time.Millisecond)
t.Log("Waiting for truncate to finish")
}
} else {
stat, err = client.Stat(name)
require.NoError(t, err)
}
assert.EqualValues(t, size, stat.Size())
}
func TestTruncate(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/truncate/1.txt")
mkdirp(t, "/_test/truncate")
f, err := client.Create("/_test/truncate/1.txt")
require.NoError(t, err)
n, err := f.Write([]byte("foobar\nfoobar\n"))
assert.Equal(t, 14, n)
require.NoError(t, err)
assertClose(t, f)
waitTruncate(t, client, "/_test/truncate/1.txt", 4)
}
func TestTruncateToZero(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/truncate/2.txt")
mkdirp(t, "/_test/truncate")
f, err := client.Create("/_test/truncate/2.txt")
require.NoError(t, err)
n, err := f.Write([]byte("foobarbaz"))
assert.Equal(t, 9, n)
require.NoError(t, err)
assertClose(t, f)
waitTruncate(t, client, "/_test/truncate/2.txt", 0)
}
func TestTruncateSizeTooBig(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/truncate/3.txt")
mkdirp(t, "/_test/truncate")
f, err := client.Create("/_test/truncate/3.txt")
require.NoError(t, err)
n, err := f.Write([]byte("foo"))
assert.Equal(t, 3, n)
require.NoError(t, err)
assertClose(t, f)
done, err := client.Truncate("/_test/truncate/3.txt", 100)
assert.False(t, done)
assertPathError(t, err, "truncate", "/_test/truncate/3.txt", os.ErrInvalid)
}
func TestTruncateSizeNegative(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/truncate/4.txt")
mkdirp(t, "/_test/truncate")
f, err := client.Create("/_test/truncate/4.txt")
require.NoError(t, err)
n, err := f.Write([]byte("foo"))
assert.Equal(t, 3, n)
require.NoError(t, err)
assertClose(t, f)
done, err := client.Truncate("/_test/truncate/4.txt", -10)
assert.False(t, done)
assertPathError(t, err, "truncate", "/_test/truncate/4.txt", os.ErrInvalid)
}
func TestTruncateNoExist(t *testing.T) {
client := getClient(t)
done, err := client.Truncate("/_test/nonexistent", 100)
assert.False(t, done)
assertPathError(t, err, "truncate", "/_test/nonexistent", os.ErrNotExist)
}
func TestTruncateDir(t *testing.T) {
client := getClient(t)
mkdirp(t, "/_test/truncate")
done, err := client.Truncate("/_test/truncate", 100)
assert.False(t, done)
assertPathError(t, err, "truncate", "/_test/truncate", os.ErrNotExist)
}
func TestTruncateWithoutPermission(t *testing.T) {
client := getClient(t)
client2 := getClientForUser(t, "gohdfs2")
baleet(t, "/_test/truncate/5.txt")
mkdirp(t, "/_test/truncate")
f, err := client.Create("/_test/truncate/5.txt")
require.NoError(t, err)
n, err := f.Write([]byte("barbar"))
assert.Equal(t, 6, n)
require.NoError(t, err)
assertClose(t, f)
done, err := client2.Truncate("/_test/truncate/5.txt", 1)
assert.False(t, done)
assertPathError(t, err, "truncate", "/_test/truncate/5.txt", os.ErrPermission)
stat, err := client.Stat("/_test/truncate/5.txt")
require.NoError(t, err)
assert.EqualValues(t, 6, stat.Size())
}
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