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30302a2850
When reading mount errors, it is quite hard to make sense of mount flags in their hex form. As this is the error path, the minor performance impact of constructing a string is probably not worth hyper-optimising. Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
55 lines
2.3 KiB
Go
55 lines
2.3 KiB
Go
package libcontainer
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import (
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"testing"
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"golang.org/x/sys/unix"
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)
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func TestStringifyMountFlags(t *testing.T) {
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for _, test := range []struct {
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name string
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flags uintptr
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expected string
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}{
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{"Empty", 0, ""},
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// Single valid flags.
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{"Single-MS_RDONLY", unix.MS_RDONLY, "MS_RDONLY"},
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{"Single-MS_NOSUID", unix.MS_NOSUID, "MS_NOSUID"},
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{"Single-MS_NODEV", unix.MS_NODEV, "MS_NODEV"},
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{"Single-MS_NOEXEC", unix.MS_NOEXEC, "MS_NOEXEC"},
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{"Single-MS_SYNCHRONOUS", unix.MS_SYNCHRONOUS, "MS_SYNCHRONOUS"},
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{"Single-MS_REMOUNT", unix.MS_REMOUNT, "MS_REMOUNT"},
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{"Single-MS_MANDLOCK", unix.MS_MANDLOCK, "MS_MANDLOCK"},
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{"Single-MS_DIRSYNC", unix.MS_DIRSYNC, "MS_DIRSYNC"},
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{"Single-MS_NOSYMFOLLOW", unix.MS_NOSYMFOLLOW, "MS_NOSYMFOLLOW"},
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{"Single-MS_NOATIME", unix.MS_NOATIME, "MS_NOATIME"},
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{"Single-MS_NODIRATIME", unix.MS_NODIRATIME, "MS_NODIRATIME"},
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{"Single-MS_BIND", unix.MS_BIND, "MS_BIND"},
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{"Single-MS_MOVE", unix.MS_MOVE, "MS_MOVE"},
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{"Single-MS_REC", unix.MS_REC, "MS_REC"},
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{"Single-MS_SILENT", unix.MS_SILENT, "MS_SILENT"},
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{"Single-MS_POSIXACL", unix.MS_POSIXACL, "MS_POSIXACL"},
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{"Single-MS_UNBINDABLE", unix.MS_UNBINDABLE, "MS_UNBINDABLE"},
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{"Single-MS_PRIVATE", unix.MS_PRIVATE, "MS_PRIVATE"},
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{"Single-MS_SLAVE", unix.MS_SLAVE, "MS_SLAVE"},
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{"Single-MS_SHARED", unix.MS_SHARED, "MS_SHARED"},
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{"Single-MS_RELATIME", unix.MS_RELATIME, "MS_RELATIME"},
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{"Single-MS_KERNMOUNT", unix.MS_KERNMOUNT, "0x400000"},
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{"Single-MS_I_VERSION", unix.MS_I_VERSION, "MS_I_VERSION"},
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{"Single-MS_STRICTATIME", unix.MS_STRICTATIME, "MS_STRICTATIME"},
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{"Single-MS_LAZYTIME", unix.MS_LAZYTIME, "MS_LAZYTIME"},
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// Invalid flag value.
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{"Unknown-512", 1 << 9, "0x200"},
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// Multiple flag values at the same time.
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{"Multiple-Valid1", unix.MS_RDONLY | unix.MS_REC | unix.MS_BIND, "MS_RDONLY|MS_BIND|MS_REC"},
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{"Multiple-Valid2", unix.MS_NOSUID | unix.MS_NODEV | unix.MS_NOEXEC | unix.MS_REC | unix.MS_NODIRATIME | unix.MS_I_VERSION, "MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_NODIRATIME|MS_REC|MS_I_VERSION"},
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{"Multiple-Mixed", unix.MS_REC | unix.MS_BIND | (1 << 9) | (1 << 31), "MS_BIND|MS_REC|0x80000200"},
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} {
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got := stringifyMountFlags(test.flags)
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if got != test.expected {
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t.Errorf("%s: stringifyMountFlags(0x%x) = %q, expected %q", test.name, test.flags, got, test.expected)
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}
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}
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}
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