Fix largest level calculation

README.markdown

@@ -81,13 +81,15 @@ time.
 
 - **Flat**: A JSON document is in this category if the height of the document
   multiplied by the non-root level with the largest byte-size when taking
-  textual, numeric and boolean values into account is less than 10.
+  textual, numeric and boolean values into account is less than 10. If two
+  levels have the byte size, the highest level is taken into account.
 
 - **Nested**: A JSON document is in this category if it is considered
   *structural* and its height is greater than or equal to 5, or if the height
   of the document multiplied by the non-root level with the largest byte-size
   when taking textual, numeric and boolean values into account is greater than
-  or equal to 10.
+  or equal to 10. If two levels have the byte size, the highest level is taken
+  into account.
 
 Usage (JavaScript)
 ------------------

js/index.js

@@ -61,9 +61,12 @@ module.exports = (value) => {
   // Nesting characteristics
   const largestLevel = analysis.levels.slice(1).map((level, index) => {
     return { index: index + 1, ...level }
+  }).sort((left, right) => {
+    return right.index - left.index
   }).sort((left, right) => {
     return right.size - left.size
   })[0]
+
   if (textualWeight === 0 && numericWeight === 0 && booleanWeight === 0 && analysis.height >= 5) {
     qualifiers.push('nested')
   } else if (analysis.height * largestLevel.index >= 10) {

test/js/index.test.js

@@ -54,6 +54,36 @@ tap.test('should categorize the survey test object', (test) => {
   test.end()
 })
 
+tap.test('should categorize a tier 1 numeric non-redundant nested document', (test) => {
+  const document = {
+    version: 2.1,
+    workflows: {
+      test: {
+        jobs: [
+          {
+            m1: {
+              matrix: {
+                parameters: {
+                  a: [1, 2, 3]
+                }
+              }
+            }
+          }
+        ]
+      }
+    }
+  }
+
+  test.strictSame(taxonomy(document), [
+    'tier 1',
+    'numeric',
+    'non-redundant',
+    'nested'
+  ])
+
+  test.end()
+})
+
 tap.test('should categorize an empty object', (test) => {
   const document = {}