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Add some tests for gears.geometry.rectangle.area_remove 

This tests are not-really-good because they are overly specific. They
test for the current behaviour of the implementation, but I guess that a
valid implementation could also behave slightly different. However, for
now this will have to be enough.

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2017-03-12 16:42:42 +01:00
parent 7dcbd62264
commit da276dc8fb
1 changed files with 72 additions and 2 deletions
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74
spec/gears/geometry_spec.lua
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@ -121,8 +121,78 @@ describe("gears.geometry", function()
end)
end)
it("rectangle.area_remove", function()
pending("Write tests for gears.geometry.rectangle.area_remove")
describe("rectangle.area_remove", function()
-- TODO perhaps it would be better to compare against a cairo.region
-- than to have this overly specific tests?
local function test(expected, areas, elem)
local result = geo.rectangle.area_remove(areas, elem)
assert.is.equal(result, areas)
assert.is.same(expected, areas)
end
it("non-intersecting", function()
local areas = {{ x = 0, y = 0, width = 100, height = 100 }}
local elem = { x = -50, y = -50, width = 25, height = 25}
local expected = {{ x = 0, y = 0, width = 100, height = 100 }}
test(expected, areas, elem)
end)
it("center", function()
local areas = {{ x = 0, y = 0, width = 100, height = 100 }}
local elem = { x = 25, y = 25, width = 50, height = 50}
local expected = {
{ x = 0, y = 0, width = 25, height = 100 },
{ x = 0, y = 0, width = 100, height = 25 },
{ x = 75, y = 0, width = 25, height = 100 },
{ x = 0, y = 75, width = 100, height = 25 },
}
test(expected, areas, elem)
end)
it("top", function()
local areas = {{ x = 0, y = 0, width = 100, height = 100 }}
local elem = { x = 25, y = 0, width = 50, height = 50}
local expected = {
{ x = 0, y = 0, width = 25, height = 100 },
{ x = 75, y = 0, width = 25, height = 100 },
{ x = 0, y = 50, width = 100, height = 50 },
}
test(expected, areas, elem)
end)
it("bottom", function()
local areas = {{ x = 0, y = 0, width = 100, height = 100 }}
local elem = { x = 25, y = 50, width = 50, height = 50}
local expected = {
{ x = 0, y = 0, width = 25, height = 100 },
{ x = 0, y = 0, width = 100, height = 50 },
{ x = 75, y = 0, width = 25, height = 100 },
}
test(expected, areas, elem)
end)
it("left", function()
local areas = {{ x = 0, y = 0, width = 100, height = 100 }}
local elem = { x = 0, y = 25, width = 50, height = 50}
local expected = {
{ x = 0, y = 0, width = 100, height = 25 },
{ x = 50, y = 0, width = 50, height = 100 },
{ x = 0, y = 75, width = 100, height = 25 },
}
test(expected, areas, elem)
end)
it("right", function()
local areas = {{ x = 0, y = 0, width = 100, height = 100 }}
local elem = { x = 50, y = 25, width = 50, height = 50}
local expected = {
{ x = 0, y = 0, width = 50, height = 100 },
{ x = 0, y = 0, width = 100, height = 25 },
{ x = 0, y = 75, width = 100, height = 25 },
}
test(expected, areas, elem)
end)
end)
end)