Merge pull request #2864 from Elv13/rect_equal

Add a way to compare rectangle to gears.geometry

lib/gears/geometry.lua

@@ -151,6 +151,20 @@ function gears.geometry.rectangle.get_in_direction(dir, recttbl, cur)
     return target
 end
 
+--- Return true if the area are exactly identical.
+--
+-- The areas are table with a `x`, `y`, `width` and `height` keys.
+--
+-- @tparam table a The area.
+-- @tparam table b The other area.
+-- @treturn boolean If the areas are identical.
+function gears.geometry.rectangle.are_equal(a, b)
+    for _, v in ipairs {"x", "y", "width", "height"} do
+        if a[v] ~= b[v] then return false end
+    end
+    return true
+end
+
 --- Check if an area intersect another area.
 -- @param a The area.
 -- @param b The other area.

spec/gears/geometry_spec.lua

@@ -121,6 +121,30 @@ describe("gears.geometry", function()
         end)
     end)
 
+    describe("rectangle.are_equal", function()
+
+        it("with equality", function()
+            assert.are_equal(true, geo.rectangle.are_equal(
+                {x=0, y=0, width=10, height=10},
+                {x=0, y=0, width=10, height=10}
+            ))
+        end)
+
+        it("without equality", function()
+            assert.are_equal(false, geo.rectangle.are_equal(
+                {x=0, y=0, width=1, height=1},
+                {x=2, y=2, width=1, height=1}
+            ))
+        end)
+
+        it("with intersection", function()
+            assert.are_equal(false, geo.rectangle.are_equal(
+                {x=0, y=0, width=1, height=1},
+                {x=0, y=0, width=2, height=2}
+            ))
+        end)
+    end)
+
     describe("rectangle.area_remove", function()
         -- TODO perhaps it would be better to compare against a cairo.region
         -- than to have this overly specific tests?