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package part_01
import (
"os"
"strings"
"testing"
)
func TestWalkLines(t *testing.T) {
lines := getSampleLines()
expected := 4361
validNumbers := walkLines(lines)
actual := 0
for _, number := range validNumbers {
actual += number
}
if actual != expected {
t.Errorf("Expected answer to be %d, got %d", expected, actual)
}
}
func TestCheckValidity(t *testing.T) {
lines := getSampleLines()
tests := []struct {
x int
y int
length int
expected bool
}{
{3, 0, 3, true}, // 467
{8, 0, 3, false}, // 114
{9, 0, 1, false}, // 3 - Added to check for '\r' counting as a symbol
{4, 2, 2, true}, // 35
{9, 2, 3, true}, // 633
{9, 3, 1, false}, // 3 - Added to check if number continues to next line
{3, 4, 3, true}, // 617
{9, 5, 2, false}, // 58
{5, 6, 3, true}, // 592
{9, 7, 3, true}, // 775
{4, 9, 3, true}, // 664
{8, 9, 3, true}, // 598
}
for _, test := range tests {
actual := checkValidity(lines, test.x, test.y, test.length)
if actual != test.expected {
t.Errorf("Expected %d, %d, %d to be %t, got %t", test.x, test.y, test.length, test.expected, actual)
}
}
}
func getSampleLines() []string {
contents, err := os.ReadFile("../../../../_input/day_03_part_01_sample.txt")
if err != nil {
panic(err)
}
lines := strings.Split(string(contents), "\n")
var filteredLines []string
for _, line := range lines {
if line == "" || line == "\n" {
continue
}
// Counts as a symbol...
filteredLine := strings.ReplaceAll(line, "\r", "")
filteredLines = append(filteredLines, filteredLine)
}
return filteredLines
}
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