Day 13: Part 1 and 2

Signed-off-by: James Griffin <james@unsupervised.ca>

thirteen/day_thirteen_test.go

@@ -0,0 +1,77 @@
+package thirteen
+
+import "testing"
+
+func Test_note_load(t *testing.T) {
+	n, err := notes("sample.txt")
+	if err != nil {
+		t.Logf(err.Error())
+		t.Fail()
+	}
+
+	if len(n.routes) != 5 {
+		t.Logf("Expected 5 routes, found %d", n.routes)
+		t.Fail()
+	}
+
+	if n.departure != 939 {
+		t.Logf("Expected departure of 939, found %d", n.departure)
+		t.Fail()
+	}
+}
+
+func Test_find_first(t *testing.T) {
+	n, _ := notes("sample.txt")
+
+	result := n.firstBus()
+
+	if result != 295 {
+		t.Logf("Expected product of 295 for first bus, got %d", result)
+		t.Fail()
+	}
+}
+
+func Test_contest_start(t *testing.T) {
+	n, _ := notes("sample.txt")
+
+	result := n.sequenceStart()
+	if result != 1068781 {
+		t.Logf("Expected time of 1068781 for sequence, got %d", result)
+		t.Fail()
+	}
+
+	n.sequence = []int{17, -1, 13, 19}
+	result = n.sequenceStart()
+	if result != 3417 {
+		t.Logf("Expected time of 3417 for sequence, got %d", result)
+		t.Fail()
+	}
+
+	n.sequence = []int{67, 7, 59, 61}
+	result = n.sequenceStart()
+	if result != 754018 {
+		t.Logf("Expected time of 754018 for sequence, got %d", result)
+		t.Fail()
+	}
+
+	n.sequence = []int{67, -1, 7, 59, 61}
+	result = n.sequenceStart()
+	if result != 779210 {
+		t.Logf("Expected time of 779210 for sequence, got %d", result)
+		t.Fail()
+	}
+
+	n.sequence = []int{67, 7, -1, 59, 61}
+	result = n.sequenceStart()
+	if result != 1261476 {
+		t.Logf("Expected time of 1261476 for sequence, got %d", result)
+		t.Fail()
+	}
+
+	n.sequence = []int{1789, 37, 47, 1889}
+	result = n.sequenceStart()
+	if result != 1202161486 {
+		t.Logf("Expected time of 1202161486 for sequence, got %d", result)
+		t.Fail()
+	}
+}