container/autoroot: check host path equivalence by value

This will never return true otherwise unless the equivalent paths happen to be interned by the caller.

Signed-off-by: Ophestra <cat@gensokyo.uk>

container/mount_test.go

@@ -2,6 +2,7 @@ package container
 
 import (
 	"os"
+	"slices"
 	"testing"
 )
 
@@ -47,3 +48,67 @@ func TestEscapeOverlayDataSegment(t *testing.T) {
 		})
 	}
 }
+
+type opsBuilderTestCase struct {
+	name string
+	ops  *Ops
+	want Ops
+}
+
+func checkOpsBuilder(t *testing.T, testCases []opsBuilderTestCase) {
+	t.Run("build", func(t *testing.T) {
+		for _, tc := range testCases {
+			t.Run(tc.name, func(t *testing.T) {
+				if !slices.EqualFunc(*tc.ops, tc.want, func(op Op, v Op) bool { return op.Is(v) }) {
+					t.Errorf("Ops: %#v, want %#v", tc.ops, tc.want)
+				}
+			})
+		}
+	})
+}
+
+type opIsTestCase struct {
+	name  string
+	op, v Op
+	want  bool
+}
+
+func checkOpIs(t *testing.T, testCases []opIsTestCase) {
+	t.Run("is", func(t *testing.T) {
+		for _, tc := range testCases {
+			t.Run(tc.name, func(t *testing.T) {
+				if got := tc.op.Is(tc.v); got != tc.want {
+					t.Errorf("Is: %v, want %v", got, tc.want)
+				}
+			})
+		}
+	})
+}
+
+type opMetaTestCase struct {
+	name string
+	op   Op
+
+	wantPrefix string
+	wantString string
+}
+
+func checkOpMeta(t *testing.T, testCases []opMetaTestCase) {
+	t.Run("meta", func(t *testing.T) {
+		for _, tc := range testCases {
+			t.Run(tc.name, func(t *testing.T) {
+				t.Run("prefix", func(t *testing.T) {
+					if got := tc.op.prefix(); got != tc.wantPrefix {
+						t.Errorf("prefix: %q, want %q", got, tc.wantPrefix)
+					}
+				})
+
+				t.Run("string", func(t *testing.T) {
+					if got := tc.op.String(); got != tc.wantString {
+						t.Errorf("String: %s, want %s", got, tc.wantString)
+					}
+				})
+			})
+		}
+	})
+}