Defect density per module with ranked hotspots

The exact vocabulary the automated check enforces: keys, tokens, entry points, and worked examples. Generated from the verification source.

{
 "constants": {},
 "entryName": "compute_defect_density",
 "expectNote": "expect is the comparison-space value (your return value goes through normalize first when one is published)",
 "hiddenCaseCount": 6,
 "hiddenCaseNames": [
  "per_1000_loc",
  "ranked_two_modules",
  "rank_asc",
  "tie_broken_by_name",
  "overall_density",
  "invalid_zero_size"
 ],
 "inputKeys": [
  "defects",
  "density",
  "modules",
  "name",
  "per_scale",
  "rank_order",
  "rounding_dp",
  "size",
  "size_unit"
 ],
 "normalizeSource": "def _defect_density_normalize(r):\n    if isinstance(r, str):\n        return r  # sentinel (invalid_module / invalid_size) passes through\n\n    def n(v):\n        return None if v is None else round(float(v), 6)\n    try:\n        return {\"rows\": [{\"name\": str(x[\"name\"]), \"density\": n(x[\"density\"])} for x in r[\"rows\"]],\n                \"overall_density\": n(r[\"overall_density\"]), \"ranked\": [str(x) for x in r[\"ranked\"]]}\n    except Exception:\n        return repr(r)\n",
 "returnShapes": [
  [
   "overall_density",
   "ranked",
   "rows"
  ],
  "invalid_size",
  "invalid_module"
 ],
 "signature": "def compute_defect_density(inp):",
 "submission": "python exposing the entry function; inp is one input object; graded on held-out cases",
 "tier": "calculator",
 "visibleCases": [
  {
   "expect": {
    "overall_density": 0.02,
    "ranked": [
     "a"
    ],
    "rows": [
     {
      "density": 0.02,
      "name": "a"
     }
    ]
   },
   "input": {
    "modules": [
     {
      "defects": 20,
      "name": "a",
      "size": 1000
     }
    ],
    "per_scale": 1,
    "size_unit": "LOC"
   },
   "name": "per_loc"
  },
  {
   "expect": {
    "overall_density": 20,
    "ranked": [
     "a"
    ],
    "rows": [
     {
      "density": 20,
      "name": "a"
     }
    ]
   },
   "input": {
    "modules": [
     {
      "defects": 20,
      "name": "a",
      "size": 1000
     }
    ],
    "per_scale": 1,
    "size_unit": "KLOC"
   },
   "name": "per_kloc"
  }
 ],
 "vocabulary": [
  "KLOC",
  "defects",
  "density",
  "desc",
  "invalid_module",
  "invalid_size",
  "modules",
  "name",
  "overall_density",
  "per_scale",
  "rank_order",
  "ranked",
  "rounding_dp",
  "rows",
  "size",
  "size_unit"
 ]
}