tests

testing/__tests__/05_align_items.lua

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+package.path = package.path .. ";?.lua"
+
+local luaunit = require("testing/luaunit")
+require("testing/loveStub") -- Required to mock LOVE functions
+local FlexLove = require("FlexLove")
+
+local FlexDirection = FlexLove.enums.FlexDirection
+local Positioning = FlexLove.enums.Positioning
+local AlignItems = FlexLove.enums.AlignItems
+
+-- Create test cases
+TestAlignItems = {}
+
+function TestAlignItems:setUp()
+  self.GUI = FlexLove.GUI
+end
+
+function TestAlignItems:testAlignItemsStretchHorizontal()
+  -- Test stretch alignment in horizontal layout
+  local container = self.GUI.new({
+    x = 0,
+    y = 0,
+    w = 300,
+    h = 100,
+    positioning = Positioning.FLEX,
+    flexDirection = FlexDirection.HORIZONTAL,
+    alignItems = AlignItems.STRETCH,
+  })
+
+  -- Add child without explicit height
+  local child = self.GUI.new({
+    parent = container,
+    w = 50,
+    positioning = Positioning.FLEX,
+  })
+
+  -- Child should stretch to container height
+  luaunit.assertEquals(child.height, container.height)
+end
+
+function TestAlignItems:testAlignItemsStretchVertical()
+  -- Test stretch alignment in vertical layout
+  local container = self.GUI.new({
+    x = 0,
+    y = 0,
+    w = 100,
+    h = 300,
+    positioning = Positioning.FLEX,
+    flexDirection = FlexDirection.VERTICAL,
+    alignItems = AlignItems.STRETCH,
+  })
+
+  -- Add child without explicit width
+  local child = self.GUI.new({
+    parent = container,
+    h = 50,
+    positioning = Positioning.FLEX,
+  })
+
+  -- Child should stretch to container width
+  luaunit.assertEquals(child.width, container.width)
+end
+
+function TestAlignItems:testAlignItemsCenterHorizontal()
+  -- Test center alignment in horizontal layout
+  local container = self.GUI.new({
+    x = 0,
+    y = 0,
+    w = 300,
+    h = 100,
+    positioning = Positioning.FLEX,
+    flexDirection = FlexDirection.HORIZONTAL,
+    alignItems = AlignItems.CENTER,
+  })
+
+  -- Add child shorter than container
+  local child = self.GUI.new({
+    parent = container,
+    w = 50,
+    h = 50,
+    positioning = Positioning.FLEX,
+  })
+
+  -- Child should be vertically centered
+  -- Container height: 100px, Child height: 50px
+  -- Expected y: (100 - 50) / 2 = 25px
+  luaunit.assertEquals(child.y, 25)
+end
+
+function TestAlignItems:testAlignItemsCenterVertical()
+  -- Test center alignment in vertical layout
+  local container = self.GUI.new({
+    x = 0,
+    y = 0,
+    w = 100,
+    h = 300,
+    positioning = Positioning.FLEX,
+    flexDirection = FlexDirection.VERTICAL,
+    alignItems = AlignItems.CENTER,
+  })
+
+  -- Add child narrower than container
+  local child = self.GUI.new({
+    parent = container,
+    w = 50,
+    h = 50,
+    positioning = Positioning.FLEX,
+  })
+
+  -- Child should be horizontally centered
+  -- Container width: 100px, Child width: 50px
+  -- Expected x: (100 - 50) / 2 = 25px
+  luaunit.assertEquals(child.x, 25)
+end
+
+function TestAlignItems:testAlignItemsFlexStart()
+  -- Test flex-start alignment in horizontal layout
+  local container = self.GUI.new({
+    x = 0,
+    y = 0,
+    w = 300,
+    h = 100,
+    positioning = Positioning.FLEX,
+    flexDirection = FlexDirection.HORIZONTAL,
+    alignItems = AlignItems.FLEX_START,
+  })
+
+  -- Add child shorter than container
+  local child = self.GUI.new({
+    parent = container,
+    w = 50,
+    h = 50,
+    positioning = Positioning.FLEX,
+  })
+
+  -- Child should be at the top
+  luaunit.assertEquals(child.y, 0)
+end
+
+function TestAlignItems:testAlignItemsFlexEnd()
+  -- Test flex-end alignment in horizontal layout
+  local container = self.GUI.new({
+    x = 0,
+    y = 0,
+    w = 300,
+    h = 100,
+    positioning = Positioning.FLEX,
+    flexDirection = FlexDirection.HORIZONTAL,
+    alignItems = AlignItems.FLEX_END,
+  })
+
+  -- Add child shorter than container
+  local child = self.GUI.new({
+    parent = container,
+    w = 50,
+    h = 50,
+    positioning = Positioning.FLEX,
+  })
+
+  -- Child should be at the bottom
+  -- Container height: 100px, Child height: 50px
+  -- Expected y: 100px - 50px = 50px
+  luaunit.assertEquals(child.y, 50)
+end
+
+-- Run the test suite
+os.exit(luaunit.LuaUnit.run())
+