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text_spec.lua
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text_spec.lua
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local text = require "text"
describe("text", function()
describe("given nil", function()
it("should error", function()
assert.has_error(function() text(nil) end, "invalid input, expected string")
end)
end)
describe("given a non-string", function()
it("should error", function()
assert.has_error(function() text({}) end, "invalid input, expected string")
end)
end)
describe("align", function()
describe("given nil", function()
it("should error", function()
assert.has_error(function() text("").align(nil) end, "invalid input, expected left, right, or center")
end)
end)
describe("given a non-string", function()
it("should error", function()
assert.has_error(function() text("").align({}) end, "invalid input, expected left, right, or center")
end)
end)
describe("given invalid input", function()
it("should error", function()
assert.has_error(function() text("").align("") end, "invalid input, expected left, right, or center")
end)
end)
it("should return the text table", function()
local t = text("")
local actual = t.align("left")
assert.are.equal(t, actual)
end)
end)
describe("render", function()
local function testRender(input, width, expected)
describe(string.format("input %q of width %d", input, input:len()), function()
local t = text(input)
describe(string.format("and max width of %s", width or "none"), function()
if width then
t.width(width)
end
describe("without align", function()
it("should return elements matching the input", function()
local actual = t.render()
assert.are.same(expected.none, actual)
end)
end)
describe("aligned", function()
describe("left", function()
t.align("left")
it("should return padded elements matching the input", function()
local actual = t.render()
assert.are.same(expected.left, actual)
end)
end)
describe("right", function()
t.align("right")
it("should return padded elements matching the input", function()
local actual = t.render()
assert.are.same(expected.right, actual)
end)
end)
describe("center", function()
t.align("center")
it("should return padded elements matching the input", function()
local actual = t.render()
assert.are.same(expected.center, actual)
end)
end)
end)
end)
end)
end
describe("given an empty string", function()
testRender("", nil, {
none = {},
left = {},
right = {},
center = {},
})
end)
describe("given unspaced", function()
local input = "01234567890123456789012345678901234567890123456789"
testRender(input, 50, {
none = {
"01234567890123456789012345678901234567890123456789"
},
left = {
"01234567890123456789012345678901234567890123456789"
},
right = {
"01234567890123456789012345678901234567890123456789"
},
center = {
"01234567890123456789012345678901234567890123456789"
}
})
testRender(input, 25, {
none = {
"0123456789012345678901234",
"5678901234567890123456789"
},
left = {
"0123456789012345678901234",
"5678901234567890123456789"
},
right = {
"0123456789012345678901234",
"5678901234567890123456789"
},
center = {
"0123456789012345678901234",
"5678901234567890123456789"
}
})
testRender(input, nil, {
none = {
"01234567890123456789012345678901234567890123456789"
},
left = {
"01234567890123456789012345678901234567890123456789"
},
right = {
"01234567890123456789012345678901234567890123456789"
},
center = {
"01234567890123456789012345678901234567890123456789"
}
})
end)
describe("given spaced", function()
local input = "01234 56789 98765 43210 01234 56789 98765 43210 01"
testRender(input, 50, {
none = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
},
left = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
},
right = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
},
center = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
}
})
testRender(input, 25, {
none = {
"01234 56789 98765 43210",
"01234 56789 98765 43210",
"01"
},
left = {
"01234 56789 98765 43210 ",
"01234 56789 98765 43210 ",
"01 "
},
right = {
" 01234 56789 98765 43210",
" 01234 56789 98765 43210",
" 01"
},
center = {
" 01234 56789 98765 43210 ",
" 01234 56789 98765 43210 ",
" 01 "
}
})
testRender(input, nil, {
none = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
},
left = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
},
right = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
},
center = {
"01234 56789 98765 43210 01234 56789 98765 43210 01"
}
})
end)
describe("given unspaced then spaced", function()
local input = "0123456789012345678901234 56789 01234 56789 012345"
testRender(input, 25, {
none = {
"0123456789012345678901234",
"56789 01234 56789 012345"
},
left = {
"0123456789012345678901234",
"56789 01234 56789 012345 "
},
right = {
"0123456789012345678901234",
" 56789 01234 56789 012345"
},
center = {
"0123456789012345678901234",
" 56789 01234 56789 012345"
}
})
testRender(input, 20, {
none = {
"01234567890123456789",
"01234 56789 01234",
"56789 012345"
},
left = {
"01234567890123456789",
"01234 56789 01234 ",
"56789 012345 "
},
right = {
"01234567890123456789",
" 01234 56789 01234",
" 56789 012345"
},
center = {
"01234567890123456789",
" 01234 56789 01234 ",
" 56789 012345 "
}
})
end)
describe("with spaced then unspaced", function()
local input = "56789 01234 56789 012345 0123456789012345678901234"
testRender(input, 25, {
none = {
"56789 01234 56789 012345",
"0123456789012345678901234"
},
left = {
"56789 01234 56789 012345 ",
"0123456789012345678901234"
},
right = {
" 56789 01234 56789 012345",
"0123456789012345678901234"
},
center = {
" 56789 01234 56789 012345",
"0123456789012345678901234"
}
})
end)
describe("with spaced between unspaced", function()
local input = "56789 01234 0123456789012345678901234 56789 012345"
testRender(input, 25, {
none = {
"56789 01234",
"0123456789012345678901234",
"56789 012345"
},
left = {
"56789 01234 ",
"0123456789012345678901234",
"56789 012345 "
},
right = {
" 56789 01234",
"0123456789012345678901234",
" 56789 012345"
},
center = {
" 56789 01234 ",
"0123456789012345678901234",
" 56789 012345 "
}
})
end)
end)
describe("width", function()
describe("given nil", function()
it("should error", function()
assert.has_error(function() text("").width(nil) end, "invalid input, expected number")
end)
end)
describe("given a non-number", function()
it("should error", function()
assert.has_error(function() text("").width("") end, "invalid input, expected number")
end)
end)
it("should return the text table", function()
local t = text("")
local actual = t.width(1)
assert.are.equal(t, actual)
end)
end)
end)