lua/lines.lua

   1 require 'busted.runner'()
   2
   3 local file = vis.win.file
   4
   5 describe("file.lines_iterator()", function()
   6
   7         it("same as file.lines[]", function()
   8                 local i = 1
   9                 local iterator_lines = {}
  10                 for line in file:lines_iterator() do
  11                         iterator_lines[i] = line
  12                         i = i + 1
  13                 end
  14                 local array_lines = {}
  15                 for j = 1, #file.lines do
  16                         array_lines[j] = file.lines[j]
  17                 end
  18                 assert.are.same(array_lines, iterator_lines)
  19         end)
  20 end)
  21
  22 describe("get file.lines[]", function()
  23
  24         it("#lines", function()
  25                 assert.are.equals(5, #file.lines)
  26         end)
  27
  28         it("get lines[0]", function()
  29                 -- is that what we want?
  30                 assert.are.equals(file.lines[0], file.lines[1])
  31         end)
  32
  33         it("get lines[1]", function()
  34                 assert.are.equals("1", file.lines[1])
  35         end)
  36
  37         it("get empty \n line", function()
  38                 assert.are.equals("", file.lines[2])
  39         end)
  40
  41         it("get empty \r\n line", function()
  42                 assert.are.equals("\r", file.lines[4])
  43         end)
  44
  45         it("get lines[#lines]", function()
  46                 assert.are.equals("5", file.lines[#file.lines])
  47         end)
  48
  49         it("get lines[#lines+1]", function()
  50                 -- is that what we want?
  51                 assert.are.equals("5", file.lines[#file.lines])
  52         end)
  53
  54 end)
  55
  56 describe("set file.lines[]", function()
  57
  58         it("replace empty \n line", function()
  59                 local new = "line 2"
  60                 file.lines[2] = new
  61                 assert.are.equals(new, file.lines[2])
  62         end)
  63
  64 --[[
  65         it("replace empty \r\n line", function()
  66                 local new = "line 4"
  67                 file.lines[4] = new
  68                 assert.are.equals(new, file.lines[4])
  69         end)
  70 --]]
  71
  72         it("set lines[0], add new line at start", function()
  73                 local lines = #file.lines
  74                 local new_first = "new first line"
  75                 local old_first = file.lines[1]
  76                 file.lines[0] = new_first
  77                 assert.are.equals(lines+1, #file.lines)
  78                 assert.are.equals(new_first, file.lines[1])
  79                 assert.are.equals(old_first, file.lines[2])
  80         end)
  81
  82         it("set lines[#lines+1], add new line at end", function()
  83                 local lines = #file.lines
  84                 local new_last = "new last line"
  85                 local old_last = file.lines[#file.lines]
  86                 file.lines[#file.lines+1] = new_last
  87                 assert.are.equals(lines+1, #file.lines)
  88                 assert.are.equals(new_last, file.lines[#file.lines])
  89                 assert.are.equals(old_last, file.lines[lines])
  90         end)
  91
  92 end)
  93