{
  "exercise": "pangram",
  "comments": [
    "A pangram is a sentence using every letter of the alphabet at least once."
  ],
  "version": "1.4.0",
  "cases": [
    {
      "description": "Check if the given string is an pangram",
      "comments": [
        "Output should be a boolean denoting if the string is a pangram or not."
      ],
      "cases": [
        {
          "description": "sentence empty",
          "property": "isPangram",
          "input": {
            "sentence": ""
          },
          "expected": false
        },
        {
          "description": "recognizes a perfect lower case pangram",
          "property": "isPangram",
          "input": {
            "sentence": "abcdefghijklmnopqrstuvwxyz"
          },
          "expected": true
        },
        {
          "description": "pangram with only lower case",
          "property": "isPangram",
          "input": {
            "sentence": "the quick brown fox jumps over the lazy dog"
          },
          "expected": true
        },
        {
          "description": "missing character 'x'",
          "property": "isPangram",
          "input": {
            "sentence": "a quick movement of the enemy will jeopardize five gunboats"
          },
          "expected": false
        },
        {
          "description": "another missing character, e.g. 'h'",
          "property": "isPangram",
          "input": {
            "sentence": "five boxing wizards jump quickly at it"
          },
          "expected": false
        },
        {
          "description": "pangram with underscores",
          "property": "isPangram",
          "input": {
            "sentence": "the_quick_brown_fox_jumps_over_the_lazy_dog"
          },
          "expected": true
        },
        {
          "description": "pangram with numbers",
          "property": "isPangram",
          "input": {
            "sentence": "the 1 quick brown fox jumps over the 2 lazy dogs"
          },
          "expected": true
        },
        {
          "description": "missing letters replaced by numbers",
          "property": "isPangram",
          "input": {
            "sentence": "7h3 qu1ck brown fox jumps ov3r 7h3 lazy dog"
          },
          "expected": false
        },
        {
          "description": "pangram with mixed case and punctuation",
          "property": "isPangram",
          "input": {
            "sentence": "\"Five quacking Zephyrs jolt my wax bed.\""
          },
          "expected": true
        },
        {
          "description": "upper and lower case versions of the same character should not be counted separately",
          "property": "isPangram",
          "input": {
            "sentence": "the quick brown fox jumps over with lazy FX"
          },
          "expected": false
        }
      ]
    }
  ]
}