48 lines
1.5 KiB
Go
48 lines
1.5 KiB
Go
package genfs
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import (
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"os"
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"path/filepath"
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"testing"
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)
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func TestConflictRollsBackEarlierWrites(t *testing.T) {
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root := t.TempDir()
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if err := os.WriteFile(filepath.Join(root, "one"), []byte("before"), 0600); err != nil {
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t.Fatal(err)
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}
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if err := os.WriteFile(filepath.Join(root, "two"), []byte("concurrent"), 0644); err != nil {
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t.Fatal(err)
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}
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err := Apply(root, []Change{{Name: "one", Before: []byte("before"), After: []byte("after"), Existed: true, Mode: 0600}, {Name: "new", After: []byte("created"), Mode: 0644}, {Name: "two", Before: []byte("stale"), After: []byte("after"), Existed: true, Mode: 0644}})
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if err == nil {
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t.Fatal("conflict accepted")
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}
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data, _ := os.ReadFile(filepath.Join(root, "one"))
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info, _ := os.Stat(filepath.Join(root, "one"))
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if string(data) != "before" || info.Mode().Perm() != 0600 {
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t.Fatal("rollback did not restore bytes/mode")
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}
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if _, err = os.Stat(filepath.Join(root, "new")); !os.IsNotExist(err) {
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t.Fatal("new output survived rollback")
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}
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data, _ = os.ReadFile(filepath.Join(root, "two"))
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if string(data) != "concurrent" {
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t.Fatal("concurrent edit overwritten")
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}
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}
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func TestUnsafePaths(t *testing.T) {
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root := t.TempDir()
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for _, name := range []string{"../escape", "a/../../escape", "/outside", "a\\b", ".", "a/../b"} {
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if SafePath(root, name) == nil {
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t.Fatal(name)
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}
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}
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if err := os.Symlink(t.TempDir(), filepath.Join(root, "link")); err != nil {
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t.Fatal(err)
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}
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if SafePath(root, "link/file") == nil {
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t.Fatal("followed symlink")
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}
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}
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