Day 13 solution

thirteen/manual_test.go

@@ -0,0 +1,58 @@
+package thirteen
+
+import (
+	"fmt"
+	"testing"
+)
+
+func Test_read(t *testing.T) {
+	m := manual{}
+	if err := m.load("test_input.txt"); err != nil {
+		t.Log(err)
+		t.FailNow()
+	}
+
+	dots := countDots(m.dots)
+	folds := len(m.folds)
+
+	if dots != 18 {
+		t.Logf("Expected 18 dots, found %d", dots)
+		t.Fail()
+	}
+
+	if folds != 2 {
+		t.Logf("Expected 2 folds, found %d", folds)
+		t.Fail()
+	}
+
+	x, y := gridSize(m.dots)
+
+	if x != 11 || y != 15 {
+		t.Logf("Expected 11x15, found %dx%d", x, y)
+		t.Fail()
+	}
+}
+
+func Test_fold(t *testing.T) {
+	m := manual{}
+	m.load("test_input.txt")
+
+	printGrid(m.dots)
+	fmt.Println("")
+	grid, dots := foldGrid(m.folds[0], m.dots)
+
+	printGrid(grid)
+	if dots != 17 {
+		t.Logf("Expected 17 dots after fold, found %d", dots)
+		t.Fail()
+	}
+
+	grid, dots = foldGrid(m.folds[1], grid)
+
+	fmt.Println("")
+	printGrid(grid)
+	if dots != 16 {
+		t.Logf("Expected 16 dots after fold, found %d", dots)
+		t.Fail()
+	}
+}