some more tests for additionalItems

When the number of data items is fewer than the number of "item" subschemas,
"additionalItems" should not apply at all, even if it is false.

Author: karenetheridge

tests/draft2019-09/additionalItems.json

@@ -40,7 +40,17 @@
         },
         "tests": [
             {
-                "description": "fewer number of items present",
+                "description": "empty array",
+                "data": [ ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (1)",
+                "data": [ 1 ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (2)",
                 "data": [ 1, 2 ],
                 "valid": true
             },

tests/draft3/additionalItems.json

@@ -40,7 +40,22 @@
         },
         "tests": [
             {
-                "description": "no additional items present",
+                "description": "empty array",
+                "data": [ ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (1)",
+                "data": [ 1 ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (2)",
+                "data": [ 1, 2 ],
+                "valid": true
+            },
+            {
+                "description": "equal number of items present",
                 "data": [ 1, 2, 3 ],
                 "valid": true
             },
@@ -70,10 +85,10 @@
     },
     {
         "description": "additionalItems are allowed by default",
-        "schema": {"items": []},
+        "schema": {"items": [{"type": "integer"}]},
         "tests": [
             {
-                "description": "only the first items are validated",
+                "description": "only the first item is validated",
                 "data": [1, "foo", false],
                 "valid": true
             }

tests/draft4/additionalItems.json

@@ -40,7 +40,17 @@
         },
         "tests": [
             {
-                "description": "fewer number of items present",
+                "description": "empty array",
+                "data": [ ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (1)",
+                "data": [ 1 ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (2)",
                 "data": [ 1, 2 ],
                 "valid": true
             },

tests/draft6/additionalItems.json

@@ -40,7 +40,17 @@
         },
         "tests": [
             {
-                "description": "fewer number of items present",
+                "description": "empty array",
+                "data": [ ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (1)",
+                "data": [ 1 ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (2)",
                 "data": [ 1, 2 ],
                 "valid": true
             },

tests/draft7/additionalItems.json

@@ -40,7 +40,17 @@
         },
         "tests": [
             {
-                "description": "fewer number of items present",
+                "description": "empty array",
+                "data": [ ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (1)",
+                "data": [ 1 ],
+                "valid": true
+            },
+            {
+                "description": "fewer number of items present (2)",
                 "data": [ 1, 2 ],
                 "valid": true
             },