add day 6 to main.go and tests

main.go

@@ -25,6 +25,7 @@ var (
 		&day03{},
 		&day04{},
 		&day05{},
+		&day06{},
 	}
 )
 

main_test.go

@@ -148,4 +148,29 @@ humidity-to-location map:
 		t.Errorf("solve1() = %s; wanted %s", res, ans)
 	}
 
+	ans = "46"
+	res = puzzle.solve2(strings.NewReader(input))
+	if ans != res {
+		t.Errorf("solve2() = %s; wanted %s", res, ans)
+	}
+
+}
+
+func TestDay06(t *testing.T) {
+	input := `Time:      7  15   30
+Distance:  9  40  200`
+
+	puzzle := day06{}
+
+	ans := "288"
+	res := puzzle.solve1(strings.NewReader(input))
+	if ans != res {
+		t.Errorf("solve1() = %s; wanted %s", res, ans)
+	}
+
+	ans = "71503"
+	res = puzzle.solve2(strings.NewReader(input))
+	if ans != res {
+		t.Errorf("solve2() = %s; wanted %s", res, ans)
+	}
 }