Day 11 solution

eleven/cavern_test.go

@@ -0,0 +1,68 @@
+package eleven
+
+import (
+	"testing"
+)
+
+func Test_read(t *testing.T) {
+	c := cavern{}
+	if err := c.load("test_input.txt"); err != nil {
+		t.Log(err)
+		t.FailNow()
+	}
+
+	if len(c.octopodes) != 10 {
+		t.Logf("Expected 10 rows, found %d", len(c.octopodes))
+		t.Fail()
+	}
+
+	if len(c.octopodes[0]) != 10 {
+		t.Logf("Expected 10 columns, found %d", len(c.octopodes))
+		t.Fail()
+	}
+}
+
+func Test_flashes(t *testing.T) {
+	c := cavern{}
+	c.load("test_input.txt")
+
+	flashes := c.totalFlashes(1)
+
+	if flashes != 0 {
+		t.Logf("Expected 0 flashes, got %d", flashes)
+		t.Fail()
+	}
+
+	flashes = c.totalFlashes(2)
+
+	if flashes != 35 {
+		t.Logf("Expected 35 flashes, got %d", flashes)
+		t.Fail()
+	}
+
+	flashes = c.totalFlashes(10)
+
+	if flashes != 204 {
+		t.Logf("Expected 204 flashes, got %d", flashes)
+		t.Fail()
+	}
+
+	flashes = c.totalFlashes(100)
+
+	if flashes != 1656 {
+		t.Logf("Expected 1656 flashes, got %d", flashes)
+		t.Fail()
+	}
+}
+
+func Test_stepsToSynchronousFlash(t *testing.T) {
+	c := cavern{}
+	c.load("test_input.txt")
+
+	steps := c.stepsToSynchronousFlash()
+
+	if steps != 195 {
+		t.Logf("Expected it to take 195 steps, found %d", steps)
+		t.Fail()
+	}
+}