87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
package wazero
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/tetratelabs/wazero/internal/fsapi"
|
|
"github.com/tetratelabs/wazero/internal/sysfs"
|
|
testfs "github.com/tetratelabs/wazero/internal/testing/fs"
|
|
"github.com/tetratelabs/wazero/internal/testing/require"
|
|
)
|
|
|
|
// TestFSConfig only tests the cases that change the inputs to sysfs.ValidatePreopens.
|
|
func TestFSConfig(t *testing.T) {
|
|
base := NewFSConfig()
|
|
|
|
testFS := testfs.FS{}
|
|
testFS2 := testfs.FS{"/": &testfs.File{}}
|
|
|
|
tests := []struct {
|
|
name string
|
|
input FSConfig
|
|
expectedFS []fsapi.FS
|
|
expectedGuestPaths []string
|
|
}{
|
|
{
|
|
name: "empty",
|
|
input: base,
|
|
},
|
|
{
|
|
name: "WithFSMount",
|
|
input: base.WithFSMount(testFS, "/"),
|
|
expectedFS: []fsapi.FS{sysfs.Adapt(testFS)},
|
|
expectedGuestPaths: []string{"/"},
|
|
},
|
|
{
|
|
name: "WithFSMount overwrites",
|
|
input: base.WithFSMount(testFS, "/").WithFSMount(testFS2, "/"),
|
|
expectedFS: []fsapi.FS{sysfs.Adapt(testFS2)},
|
|
expectedGuestPaths: []string{"/"},
|
|
},
|
|
{
|
|
name: "WithFsMount nil",
|
|
input: base.WithFSMount(nil, "/"),
|
|
},
|
|
{
|
|
name: "WithDirMount overwrites",
|
|
input: base.WithFSMount(testFS, "/").WithDirMount(".", "/"),
|
|
expectedFS: []fsapi.FS{sysfs.NewDirFS(".")},
|
|
expectedGuestPaths: []string{"/"},
|
|
},
|
|
{
|
|
name: "multiple",
|
|
input: base.WithReadOnlyDirMount(".", "/").WithDirMount("/tmp", "/tmp"),
|
|
expectedFS: []fsapi.FS{sysfs.NewReadFS(sysfs.NewDirFS(".")), sysfs.NewDirFS("/tmp")},
|
|
expectedGuestPaths: []string{"/", "/tmp"},
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
tc := tt
|
|
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
fs, guestPaths := tc.input.(*fsConfig).preopens()
|
|
require.Equal(t, tc.expectedFS, fs)
|
|
require.Equal(t, tc.expectedGuestPaths, guestPaths)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestFSConfig_clone(t *testing.T) {
|
|
fc := NewFSConfig().(*fsConfig)
|
|
fc.guestPathToFS["/"] = 0
|
|
|
|
cloned := fc.clone()
|
|
|
|
// Make post-clone changes
|
|
fc.guestPaths = []string{"/"}
|
|
fc.guestPathToFS["/"] = 1
|
|
|
|
// Ensure the guestPathToFS map is not shared
|
|
require.Equal(t, map[string]int{"/": 1}, fc.guestPathToFS)
|
|
require.Equal(t, map[string]int{"/": 0}, cloned.guestPathToFS)
|
|
|
|
// Ensure the guestPaths slice is not shared
|
|
require.Zero(t, len(cloned.guestPaths))
|
|
}
|