adding to git.i0t.app

internal/config/tiles_test.go

@@ -0,0 +1,58 @@
+package config
+
+import "testing"
+
+func TestEffectiveTilesFromSlots(t *testing.T) {
+	l := Layout{Name: "l", Grid: "2x2", Slots: []string{"a", "", "", "b"}}
+	tiles := l.EffectiveTiles()
+	if len(tiles) != 2 {
+		t.Fatalf("got %d tiles, want 2", len(tiles))
+	}
+	// "a" at cell 0 -> (0,0); "b" at cell 3 -> (1,1).
+	if tiles[0].Camera != "a" || tiles[0].Col != 0 || tiles[0].Row != 0 {
+		t.Errorf("tile0 = %+v", tiles[0])
+	}
+	if tiles[1].Camera != "b" || tiles[1].Col != 1 || tiles[1].Row != 1 {
+		t.Errorf("tile1 = %+v", tiles[1])
+	}
+}
+
+func TestValidateTiles(t *testing.T) {
+	base := func(tiles []Tile) *Config {
+		c := &Config{
+			Cameras: []Camera{{Name: "a"}, {Name: "b"}},
+			Layouts: []Layout{{Name: "l", Grid: "4x4", Tiles: tiles}},
+		}
+		c.Defaults()
+		return c
+	}
+
+	// Valid: a 3x4 main plus a 1x1 side.
+	if err := base([]Tile{{Camera: "a", Col: 0, Row: 0, ColSpan: 3, RowSpan: 4}, {Camera: "b", Col: 3, Row: 0}}).Validate(); err != nil {
+		t.Errorf("valid layout rejected: %v", err)
+	}
+	// Overlap.
+	if err := base([]Tile{{Camera: "a", Col: 0, Row: 0, ColSpan: 2, RowSpan: 2}, {Camera: "b", Col: 1, Row: 1}}).Validate(); err == nil {
+		t.Error("expected overlap error")
+	}
+	// Out of bounds.
+	if err := base([]Tile{{Camera: "a", Col: 3, Row: 0, ColSpan: 2, RowSpan: 1}}).Validate(); err == nil {
+		t.Error("expected out-of-bounds error")
+	}
+	// Unknown camera.
+	if err := base([]Tile{{Camera: "ghost", Col: 0, Row: 0}}).Validate(); err == nil {
+		t.Error("expected unknown-camera error")
+	}
+}
+
+func TestValidateTilesCap(t *testing.T) {
+	var tiles []Tile
+	for i := 0; i < MaxTiles+1; i++ {
+		tiles = append(tiles, Tile{Camera: "a", Col: i, Row: 0})
+	}
+	c := &Config{Cameras: []Camera{{Name: "a"}}, Layouts: []Layout{{Name: "l", Grid: "20x1", Tiles: tiles}}}
+	c.Defaults()
+	if err := c.Validate(); err == nil {
+		t.Errorf("expected error exceeding %d-tile cap", MaxTiles)
+	}
+}