{
  "exercise": "rectangles",
  "version": "1.1.0",
  "comments": [
    "The inputs are represented as arrays of strings to improve readability in this JSON file.",
    "Your track may choose whether to present the input as a single string (concatenating all the lines) or as the list."
  ],
  "cases": [
    {
      "description": "no rows",
      "property": "rectangles",
      "input": {
        "strings": []
      },
      "expected": 0
    },
    {
      "description": "no columns",
      "property": "rectangles",
      "input": {
        "strings": [""]
      },
      "expected": 0
    },
    {
      "description": "no rectangles",
      "property": "rectangles",
      "input": {
        "strings": [" "]
      },
      "expected": 0
    },
    {
      "description": "one rectangle",
      "property": "rectangles",
      "input": {
        "strings": [
          "+-+",
          "| |",
          "+-+"
        ]
      },
      "expected": 1
    },
    {
      "description": "two rectangles without shared parts",
      "property": "rectangles",
      "input": {
        "strings": [
          "  +-+",
          "  | |",
          "+-+-+",
          "| |  ",
          "+-+  "
        ]
      },
      "expected": 2
    },
    {
      "description": "five rectangles with shared parts",
      "property": "rectangles",
      "input": {
        "strings": [
          "  +-+",
          "  | |",
          "+-+-+",
          "| | |",
          "+-+-+"
        ]
      },
      "expected": 5
    },
    {
      "description": "rectangle of height 1 is counted",
      "property": "rectangles",
      "input": {
        "strings": [
          "+--+",
          "+--+"
        ]
      },
      "expected": 1
    },
    {
      "description": "rectangle of width 1 is counted",
      "property": "rectangles",
      "input": {
        "strings": [
          "++",
          "||",
          "++"
        ]
      },
      "expected": 1
    },
    {
      "description": "1x1 square is counted",
      "property": "rectangles",
      "input": {
        "strings": [
          "++",
          "++"
        ]
      },
      "expected": 1
    },
    {
      "description": "only complete rectangles are counted",
      "property": "rectangles",
      "input": {
        "strings": [
          "  +-+",
          "    |",
          "+-+-+",
          "| | -",
          "+-+-+"
        ]
      },
      "expected": 1
    },
    {
      "description": "rectangles can be of different sizes",
      "property": "rectangles",
      "input": {
        "strings": [
          "+------+----+",
          "|      |    |",
          "+---+--+    |",
          "|   |       |",
          "+---+-------+"
        ]
      },
      "expected": 3
    },
    {
      "description": "corner is required for a rectangle to be complete",
      "property": "rectangles",
      "input": {
        "strings": [
          "+------+----+",
          "|      |    |",
          "+------+    |",
          "|   |       |",
          "+---+-------+"
        ]
      },
      "expected": 2
    },
    {
      "description": "large input with many rectangles",
      "property": "rectangles",
      "input": {
        "strings": [
          "+---+--+----+",
          "|   +--+----+",
          "+---+--+    |",
          "|   +--+----+",
          "+---+--+--+-+",
          "+---+--+--+-+",
          "+------+  | |",
          "          +-+"
        ]
      },
      "expected": 60
    }
  ]
}