config: stats,packages,grid (3 files)

packages/stats_grid/seed/scripts/tests/formatters.cases.json

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+{
+  "formatLabel": [
+    {
+      "desc": "handles simple words",
+      "input": "users",
+      "expected": "Users"
+    },
+    {
+      "desc": "handles underscores",
+      "input": "active_users",
+      "expected": "Active users"
+    }
+  ],
+  "formatValue": [
+    {
+      "desc": "handles zero",
+      "input": 0,
+      "expected": "0"
+    },
+    {
+      "desc": "handles negative numbers",
+      "input": -100,
+      "expected": "-100"
+    }
+  ]
+}

packages/stats_grid/seed/scripts/tests/stats.cases.json

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+{
+  "formatLabel": [
+    {
+      "desc": "formats snake_case to Title Case",
+      "input": "total_errors",
+      "expected": "Total errors"
+    },
+    {
+      "desc": "formats camelCase to Title Case",
+      "input": "totalErrors",
+      "expected": "Total Errors"
+    },
+    {
+      "desc": "capitalizes first letter",
+      "input": "total",
+      "expected": "Total"
+    }
+  ],
+  "formatValue": [
+    {
+      "desc": "formats small numbers as-is",
+      "input": 42,
+      "expected": "42"
+    },
+    {
+      "desc": "formats thousands with K suffix",
+      "input": 5000,
+      "expected": "5.0K"
+    },
+    {
+      "desc": "formats millions with M suffix",
+      "input": 2500000,
+      "expected": "2.5M"
+    }
+  ],
+  "createStatItems": [
+    {
+      "desc": "creates items from stats without config",
+      "input": {
+        "total": 100,
+        "errors": 5
+      },
+      "expected_count": 2
+    },
+    {
+      "desc": "creates items from stats with config",
+      "input": {
+        "total": 100,
+        "errors": 5,
+        "warnings": 10
+      },
+      "config": [
+        {"key": "total", "label": "Total", "color": "white"},
+        {"key": "errors", "label": "Errors", "color": "red"}
+      ],
+      "expected_count": 2
+    }
+  ]
+}

packages/stats_grid/seed/scripts/tests/stats.test.lua

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+-- Stats module tests
+-- Uses lua_test framework with parameterized test cases
+
+describe("Stats Module", function()
+  local cases = load_cases("stats.cases.json")
+  local stats = require("stats")
+
+  describe("formatLabel", function()
+    it_each(cases.formatLabel, "$desc", function(tc)
+      local result = stats.formatLabel(tc.input)
+      expect(result).toBe(tc.expected)
+    end)
+  end)
+
+  describe("formatValue", function()
+    it_each(cases.formatValue, "$desc", function(tc)
+      local result = stats.formatValue(tc.input)
+      expect(result).toBe(tc.expected)
+    end)
+  end)
+
+  describe("createStatItems", function()
+    it("creates items from stats data without config", function()
+      local result = stats.createStatItems({ total = 100, errors = 5 }, nil)
+      expect(#result).toBeGreaterThan(0)
+    end)
+
+    it("creates items from stats data with config", function()
+      local config = {
+        { key = "total", label = "Total", color = "white" },
+        { key = "errors", label = "Errors", color = "red" }
+      }
+      local result = stats.createStatItems({ total = 100, errors = 5 }, config)
+      expect(#result).toBe(2)
+      expect(result[1].key).toBe("total")
+      expect(result[1].label).toBe("Total")
+      expect(result[1].value).toBe(100)
+    end)
+  end)
+
+  describe("getColorClass", function()
+    it("returns correct color class for valid colors", function()
+      local redClass = stats.getColorClass("red")
+      expect(redClass).toBe("text-red-400")
+    end)
+
+    it("returns default for invalid colors", function()
+      local defaultClass = stats.getColorClass("invalid")
+      expect(defaultClass).toBeDefined()
+    end)
+  end)
+
+  describe("getDefaultGridClass", function()
+    it("returns default grid class", function()
+      local gridClass = stats.getDefaultGridClass()
+      expect(gridClass).toBeDefined()
+      expect(type(gridClass)).toBe("string")
+    end)
+  end)
+end)