Path validation

1 files changed, 35 insertions, 0 deletions

diff --git a/vespajlib/src/test/java/ai/vespa/validation/PathValidatorTest.java b/vespajlib/src/test/java/ai/vespa/validation/PathValidatorTest.java
new file mode 100644
index 00000000000..a2c1bd6bd0c
--- /dev/null
+++ b/vespajlib/src/test/java/ai/vespa/validation/PathValidatorTest.java
@@ -0,0 +1,35 @@
+package ai.vespa.validation;
+
+import org.junit.Test;
+
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class PathValidatorTest {
+
+    @Test
+    public void testPathValidation() {
+        Path root = Path.of("/foo/");
+
+        assertOk(Path.of("/foo/bar"), root);
+        assertOk(Path.of("/foo/foo2/bar"), root);
+        assertOk(Path.of("/foo/foo2/../bar"), root);
+        assertOk(Path.of("/foo/../foo/bar"), root);
+        assertOk(Path.of("/bar/../foo/../foo/bar"), root);
+
+        assertInvalid(Path.of("/foo/../bar"), root);
+        assertInvalid(Path.of("/foo/bar/../../bar"), root);
+    }
+
+    private void assertOk(Path path, Path root) {
+        PathValidator.validateChildOf(root, path);
+    }
+
+    private void assertInvalid(Path path, Path root) {
+        IllegalArgumentException illegalArgumentException = assertThrows(IllegalArgumentException.class,
+                                                                         () -> PathValidator.validateChildOf(root, path));
+        assertEquals("Invalid path %s".formatted(path), illegalArgumentException.getMessage());
+    }
+}