Add additional error boundaries

Author: TotalTechGeek

defaultMethods.js

@@ -88,6 +88,7 @@ const defaultMethods = {
     if (typeof data === 'number') return -data
     if (typeof data === 'boolean') return -data
     if (typeof data === 'object' && !Array.isArray(data)) return Number.NaN
+    if (data[0] && typeof data[0] === 'object') return Number.NaN
     if (data.length === 1) return -data[0]
     let res = data[0]
     for (let i = 1; i < data.length; i++) {

suites/divide.json

@@ -164,5 +164,11 @@
         "rule": { "/": [1, "a"] },
         "result": { "error": "NaN" },
         "data": null
+    },
+    {
+        "description": "Divide with Array produces NaN",
+        "rule": { "/": [1, [1]] },
+        "result": { "error": "NaN" },
+        "data": null
     }
 ]

suites/errors.json

@@ -23,5 +23,11 @@
         "rule": { "??": [{ "+": [{ "val": "hello" }]}, 1] },
         "result": 1,
         "data": { "hello": "world" }
+    },
+    {
+        "description": "Errors are just data",
+        "rule": { "??": [{ "val": "x" }, 1]},
+        "data": { "x": { "error": "Some error" }},
+        "result": 1
     }
 ]

suites/minus.json

@@ -126,5 +126,11 @@
         "rule": { "-": ["Hey", 1] },
         "result": { "error": "NaN" },
         "data": null
+    },
+    {
+        "description": "Subtraction with Array produces NaN",
+        "rule": { "-": [[1], 1] },
+        "result": { "error": "NaN" },
+        "data": null
     }
 ]

suites/modulo.json

@@ -169,5 +169,11 @@
         "rule": { "%": ["Hey", 1] },
         "result": { "error": "NaN" },
         "data": null
+    },
+    {
+        "description": "Modulo with array produces NaN",
+        "rule": { "%": [[1], 1] },
+        "result": { "error": "NaN" },
+        "data": null
     }
 ]

suites/multiply.json

@@ -156,5 +156,11 @@
         "rule": { "*": ["Hey", 1] },
         "result": { "error": "NaN" },
         "data": null
+    },
+    {
+        "description": "Multiply with Array produces NaN",
+        "rule": { "*": [[1], 1] },
+        "result": { "error": "NaN" },
+        "data": null
     }
 ]

suites/plus.json

@@ -170,5 +170,17 @@
         "rule": { "+": [{ "val": "x" }, 1] },
         "result": { "error": "NaN" },
         "data": { "x": {} }
+    },
+    {
+        "description": "Plus Operator with Single Operand, Invalid String Produces NaN",
+        "rule": { "+": "Hello" },
+        "result": { "error": "NaN" },
+        "data": null
+    },
+    {
+        "description": "Plus Operator with Single Operand, Array Input Produces NaN",
+        "rule": { "+": [[1]] },
+        "result": { "error": "NaN" },
+        "data": null
     }
 ]