test: add unicode pattern and patternProperties tests for draft2020-12 (#837)

* test: add unicode pattern and patternProperties tests for draft2020-12

* Remove unintended snyk instructions file

* test: add required Unicode property escape tests for draft2020-12

Add tests using \p{Letter} pattern which requires the ECMA-262 u flag:
- pattern.json: verify Unicode-mode regex with ASCII letters, non-ASCII letters, and digits
- patternProperties.json: verify Unicode-mode pattern matching for property names

* Added tests for v1

* Shorten test description to satisfy sanity check

* Revert whitespace changes in patternProperties.json

* Cleanup whitespace

---------

Co-authored-by: Shristibot <sshristi233@gmail.com>
Co-authored-by: Jason Desrosiers <jdesrosi@gmail.com>

Author: 3 people

tests/draft2020-12/pattern.json

@@ -61,5 +61,30 @@
                 "valid": true
             }
         ]
+    },
+    {
+        "description": "pattern with Unicode property escape requires unicode mode",
+        "schema": {
+            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "type": "string",
+            "pattern": "^\\p{Letter}+$"
+        },
+        "tests": [
+            {
+                "description": "ASCII letters match",
+                "data": "Hello",
+                "valid": true
+            },
+            {
+                "description": "Non-ASCII letters match",
+                "data": "π",
+                "valid": true
+            },
+            {
+                "description": "Digits do not match",
+                "data": "123",
+                "valid": false
+            }
+        ]
     }
 ]

tests/draft2020-12/patternProperties.json

@@ -172,5 +172,33 @@
                 "valid": true
             }
         ]
+    },
+    {
+        "description": "patternProperties with Unicode property escape",
+        "schema": {
+            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "type": "object",
+            "patternProperties": {
+                "^\\p{Letter}+$": {
+                    "type": "number"
+                }
+            }
+        },
+        "tests": [
+            {
+                "description": "Unicode letter property name matches",
+                "data": {
+                    "π": 1
+                },
+                "valid": true
+            },
+            {
+                "description": "Non-letter property name does not match pattern",
+                "data": {
+                    "123": 1
+                },
+                "valid": true
+            }
+        ]
     }
 ]

tests/v1/pattern.json

@@ -61,5 +61,30 @@
                 "valid": true
             }
         ]
+    },
+    {
+        "description": "pattern with Unicode property escape",
+        "schema": {
+            "$schema": "https://json-schema.org/v1",
+            "type": "string",
+            "pattern": "^\\p{Letter}+$"
+        },
+        "tests": [
+            {
+                "description": "a valid case with a Unicode letter",
+                "data": "π",
+                "valid": true
+            },
+            {
+                "description": "another valid case with multiple Unicode letters",
+                "data": "πλ",
+                "valid": true
+            },
+            {
+                "description": "an invalid case where the string contains digits",
+                "data": "123",
+                "valid": false
+            }
+        ]
     }
 ]

tests/v1/patternProperties.json

@@ -172,5 +172,32 @@
                 "valid": true
             }
         ]
+    },
+    {
+        "description": "patternProperties with Unicode property escape",
+        "schema": {
+            "$schema": "https://json-schema.org/v1",
+            "type": "object",
+            "patternProperties": {
+                "^\\p{Letter}+$": {"type": "number"}
+            }
+        },
+        "tests": [
+            {
+                "description": "Unicode letter property name matches",
+                "data": {"π": 1},
+                "valid": true
+            },
+            {
+                "description": "Unicode letter property name matches but value type is incorrect",
+                "data": {"π": "1"},
+                "valid": false
+            },
+            {
+                "description": "Non-letter property name does not match pattern",
+                "data": {"123": 1},
+                "valid": true
+            }
+        ]
     }
 ]