{
  "toggleRow": {
    "single_mode": [
      {
        "desc": "Select first row in single mode",
        "initial_selected": {},
        "index": 1,
        "expected_selected": {
          "1": true
        }
      },
      {
        "desc": "Switch selection in single mode",
        "initial_selected": {
          "1": true
        },
        "index": 2,
        "expected_selected": {
          "2": true
        }
      },
      {
        "desc": "Deselect same row in single mode",
        "initial_selected": {
          "1": true
        },
        "index": 1,
        "expected_selected": {}
      },
      {
        "desc": "Select row 5 in single mode",
        "initial_selected": {
          "3": true
        },
        "index": 5,
        "expected_selected": {
          "5": true
        }
      }
    ],
    "multiple_mode": [
      {
        "desc": "Select first row in multiple mode",
        "initial_selected": {},
        "index": 1,
        "expected_selected": {
          "1": true
        }
      },
      {
        "desc": "Select second row while first selected",
        "initial_selected": {
          "1": true
        },
        "index": 2,
        "expected_selected": {
          "1": true,
          "2": true
        }
      },
      {
        "desc": "Deselect row 1 in multiple mode",
        "initial_selected": {
          "1": true,
          "2": true
        },
        "index": 1,
        "expected_selected": {
          "2": true
        }
      },
      {
        "desc": "Toggle multiple selections",
        "initial_selected": {
          "1": true,
          "3": true,
          "5": true
        },
        "index": 3,
        "expected_selected": {
          "1": true,
          "5": true
        }
      },
      {
        "desc": "Select non-consecutive rows",
        "initial_selected": {
          "2": true,
          "5": true
        },
        "index": 8,
        "expected_selected": {
          "2": true,
          "5": true,
          "8": true
        }
      }
    ]
  },
  "selectRange": [
    {
      "desc": "Select range 1-5",
      "initial_selected": {},
      "from_index": 1,
      "to_index": 5,
      "expected_start": 1,
      "expected_end": 5
    },
    {
      "desc": "Select reverse range 5-1",
      "initial_selected": {},
      "from_index": 5,
      "to_index": 1,
      "expected_start": 1,
      "expected_end": 5
    },
    {
      "desc": "Select range 3-7",
      "initial_selected": {},
      "from_index": 3,
      "to_index": 7,
      "expected_start": 3,
      "expected_end": 7
    },
    {
      "desc": "Extend selection with range",
      "initial_selected": {
        "1": true,
        "2": true
      },
      "from_index": 5,
      "to_index": 8,
      "expected_start": 5,
      "expected_end": 8,
      "preserve_indices": [1, 2]
    },
    {
      "desc": "Select single row as range",
      "initial_selected": {},
      "from_index": 3,
      "to_index": 3,
      "expected_start": 3,
      "expected_end": 3
    },
    {
      "desc": "Select large range 1-20",
      "initial_selected": {},
      "from_index": 1,
      "to_index": 20,
      "expected_start": 1,
      "expected_end": 20
    },
    {
      "desc": "Overlapping range preserves existing",
      "initial_selected": {
        "2": true,
        "8": true,
        "10": true
      },
      "from_index": 5,
      "to_index": 9,
      "expected_start": 5,
      "expected_end": 9,
      "preserve_indices": [2, 10]
    }
  ]
}