Function TestWriteFileHandleMethods

vfs/write_test.go:92–192

(t *testing.T)

}

func TestWriteFileHandleMethods(t *testing.T) {
	r, vfs, fh := writeHandleCreate(t)

	// String
	assert.Equal(t, "file1 (w)", fh.String())
	assert.Equal(t, "<nil *WriteFileHandle>", (*WriteFileHandle)(nil).String())
	assert.Equal(t, "<nil *WriteFileHandle.file>", new(WriteFileHandle).String())

	// Node
	node := fh.Node()
	assert.Equal(t, "file1", node.Name())

	// Offset #1
	assert.Equal(t, int64(0), fh.Offset())
	assert.Equal(t, int64(0), node.Size())

	// Write (smoke test only since heavy lifting done in WriteAt)
	n, err := fh.Write([]byte("hello"))
	assert.NoError(t, err)
	assert.Equal(t, 5, n)

	// Offset #2
	assert.Equal(t, int64(5), fh.Offset())
	assert.Equal(t, int64(5), node.Size())

	// Stat
	var fi os.FileInfo
	fi, err = fh.Stat()
	assert.NoError(t, err)
	assert.Equal(t, int64(5), fi.Size())
	assert.Equal(t, "file1", fi.Name())

	// Read
	var buf = make([]byte, 16)
	_, err = fh.Read(buf)
	assert.Equal(t, EPERM, err)

	// ReadAt
	_, err = fh.ReadAt(buf, 0)
	assert.Equal(t, EPERM, err)

	// Sync
	err = fh.Sync()
	assert.NoError(t, err)

	// Truncate - can only truncate where the file pointer is
	err = fh.Truncate(5)
	assert.NoError(t, err)
	err = fh.Truncate(6)
	assert.Equal(t, EPERM, err)

	// Close
	assert.NoError(t, fh.Close())

	// Check double close
	err = fh.Close()
	assert.Equal(t, ECLOSED, err)