mountlib: fix cross platform tests

This commit is contained in:
Nick Craig-Wood 2017-05-10 11:19:32 +01:00
parent 204a19e67f
commit f9500729b7
4 changed files with 129 additions and 0 deletions

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// +build !linux,!darwin,!freebsd
package mounttest
import (
"runtime"
"testing"
)
// TestReadFileDoubleClose tests double close on read
func TestReadFileDoubleClose(t *testing.T) {
t.Skip("not supported on " + runtime.GOOS)
}

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// +build linux darwin freebsd
package mounttest
import (
"os"
"syscall"
"testing"
"github.com/stretchr/testify/assert"
)
// TestReadFileDoubleClose tests double close on read
func TestReadFileDoubleClose(t *testing.T) {
run.skipIfNoFUSE(t)
run.createFile(t, "testdoubleclose", "hello")
in, err := os.Open(run.path("testdoubleclose"))
assert.NoError(t, err)
fd := in.Fd()
fd1, err := syscall.Dup(int(fd))
assert.NoError(t, err)
fd2, err := syscall.Dup(int(fd))
assert.NoError(t, err)
// close one of the dups - should produce no error
err = syscall.Close(fd1)
assert.NoError(t, err)
// read from the file
buf := make([]byte, 1)
_, err = in.Read(buf)
assert.NoError(t, err)
// close it
err = in.Close()
assert.NoError(t, err)
// read from the other dup - should produce no error as this
// file is now buffered
n, err := syscall.Read(fd2, buf)
assert.NoError(t, err)
assert.Equal(t, 1, n)
// close the dup - should not produce an error
err = syscall.Close(fd2)
assert.NoError(t, err, "input/output error")
run.rm(t, "testdoubleclose")
}

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// +build !linux,!darwin,!freebsd
package mounttest
import (
"runtime"
"testing"
)
// TestWriteFileDoubleClose tests double close on write
func TestWriteFileDoubleClose(t *testing.T) {
t.Skip("not supported on " + runtime.GOOS)
}

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// +build linux darwin freebsd
package mounttest
import (
"os"
"syscall"
"testing"
"github.com/stretchr/testify/assert"
)
// TestWriteFileDoubleClose tests double close on write
func TestWriteFileDoubleClose(t *testing.T) {
run.skipIfNoFUSE(t)
out, err := os.Create(run.path("testdoubleclose"))
assert.NoError(t, err)
fd := out.Fd()
fd1, err := syscall.Dup(int(fd))
assert.NoError(t, err)
fd2, err := syscall.Dup(int(fd))
assert.NoError(t, err)
// close one of the dups - should produce no error
err = syscall.Close(fd1)
assert.NoError(t, err)
// write to the file
buf := []byte("hello")
n, err := out.Write(buf)
assert.NoError(t, err)
assert.Equal(t, 5, n)
// close it
err = out.Close()
assert.NoError(t, err)
// write to the other dup - should produce an error
n, err = syscall.Write(fd2, buf)
assert.Error(t, err, "input/output error")
// close the dup - should produce an error
err = syscall.Close(fd2)
assert.Error(t, err, "input/output error")
run.rm(t, "testdoubleclose")
}