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Copy pathfile_writer_test.go
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file_writer_test.go
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package hdfs
import (
"hash/crc32"
"io"
"io/ioutil"
"os"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestFileWrite(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/create/1.txt")
mkdirp(t, "/_test/create")
writer, err := client.Create("/_test/create/1.txt")
require.NoError(t, err)
n, err := writer.Write([]byte("foo"))
require.NoError(t, err)
assert.Equal(t, 3, n)
n, err = writer.Write([]byte("bar"))
require.NoError(t, err)
assert.Equal(t, 3, n)
err = writer.Close()
require.NoError(t, err)
reader, err := client.Open("/_test/create/1.txt")
require.NoError(t, err)
bytes, err := ioutil.ReadAll(reader)
require.NoError(t, err)
assert.Equal(t, "foobar", string(bytes))
}
func TestFileBigWrite(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/create/2.txt")
mkdirp(t, "/_test/create")
writer, err := client.Create("/_test/create/2.txt")
require.NoError(t, err)
mobydick, err := os.Open("test/mobydick.txt")
require.NoError(t, err)
n, err := io.Copy(writer, mobydick)
require.NoError(t, err)
assert.EqualValues(t, 1257276, n)
err = writer.Close()
require.NoError(t, err)
reader, err := client.Open("/_test/create/2.txt")
require.NoError(t, err)
hash := crc32.NewIEEE()
n, err = io.Copy(hash, reader)
assert.Nil(t, err)
assert.EqualValues(t, 1257276, n)
assert.EqualValues(t, 0x199d1ae6, hash.Sum32())
}
func TestFileBigWriteMultipleBlocks(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/create/3.txt")
mkdirp(t, "/_test/create")
writer, err := client.CreateFile("/_test/create/3.txt", 1, 1048576, 0755)
require.NoError(t, err)
mobydick, err := os.Open("test/mobydick.txt")
require.NoError(t, err)
n, err := io.Copy(writer, mobydick)
require.NoError(t, err)
assert.EqualValues(t, 1257276, n)
err = writer.Close()
require.NoError(t, err)
reader, err := client.Open("/_test/create/3.txt")
require.NoError(t, err)
hash := crc32.NewIEEE()
n, err = io.Copy(hash, reader)
assert.Nil(t, err)
assert.EqualValues(t, 1257276, n)
assert.EqualValues(t, 0x199d1ae6, hash.Sum32())
}
func TestFileBigWriteWeirdBlockSize(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/create/4.txt")
mkdirp(t, "/_test/create")
writer, err := client.CreateFile("/_test/create/4.txt", 1, 1050000, 0755)
require.NoError(t, err)
mobydick, err := os.Open("test/mobydick.txt")
require.NoError(t, err)
n, err := io.Copy(writer, mobydick)
require.NoError(t, err)
assert.EqualValues(t, 1257276, n)
err = writer.Close()
require.NoError(t, err)
reader, err := client.Open("/_test/create/4.txt")
require.NoError(t, err)
hash := crc32.NewIEEE()
n, err = io.Copy(hash, reader)
assert.Nil(t, err)
assert.EqualValues(t, 1257276, n)
assert.EqualValues(t, 0x199d1ae6, hash.Sum32())
}
func TestFileBigWriteReplication(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/create/5.txt")
mkdirp(t, "/_test/create")
writer, err := client.CreateFile("/_test/create/5.txt", 3, 1048576, 0755)
require.NoError(t, err)
mobydick, err := os.Open("test/mobydick.txt")
require.NoError(t, err)
n, err := io.Copy(writer, mobydick)
require.NoError(t, err)
assert.EqualValues(t, 1257276, n)
err = writer.Close()
require.NoError(t, err)
reader, err := client.Open("/_test/create/5.txt")
require.NoError(t, err)
hash := crc32.NewIEEE()
n, err = io.Copy(hash, reader)
assert.Nil(t, err)
assert.EqualValues(t, 1257276, n)
assert.EqualValues(t, 0x199d1ae6, hash.Sum32())
}
func TestCreateEmptyFile(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/emptyfile")
err := client.CreateEmptyFile("/_test/emptyfile")
require.NoError(t, err)
fi, err := client.Stat("/_test/emptyfile")
require.NoError(t, err)
assert.False(t, fi.IsDir())
assert.EqualValues(t, 0, fi.Size())
err = client.CreateEmptyFile("/_test/emptyfile")
assertPathError(t, err, "create", "/_test/emptyfile", os.ErrExist)
}
func TestCreateEmptyFileWithoutParent(t *testing.T) {
client := getClient(t)
baleet(t, "/_test/nonexistent")
err := client.CreateEmptyFile("/_test/nonexistent/emptyfile")
assertPathError(t, err, "create", "/_test/nonexistent/emptyfile", os.ErrNotExist)
_, err = client.Stat("/_test/nonexistent/emptyfile")
assertPathError(t, err, "stat", "/_test/nonexistent/emptyfile", os.ErrNotExist)
}
func TestCreateEmptyFileWithoutPermission(t *testing.T) {
client := getClient(t)
otherClient := getClientForUser(t, "other")
mkdirp(t, "/_test/accessdenied")
baleet(t, "/_test/accessdenied/emptyfile")
err := otherClient.CreateEmptyFile("/_test/accessdenied/emptyfile")
assertPathError(t, err, "create", "/_test/accessdenied/emptyfile", os.ErrPermission)
_, err = client.Stat("/_test/accessdenied/emptyfile")
assertPathError(t, err, "stat", "/_test/accessdenied/emptyfile", os.ErrNotExist)
}