day01 complete including tests; need better Main.main() ... but works for now

src/de/domainforge/aoc2017/Day01.java

@@ -2,6 +2,8 @@ package de.domainforge.aoc2017;
 
 import de.domainforge.tools.AOCDay;
 
+import java.nio.charset.StandardCharsets;
+
 public class Day01 extends AOCDay {
     public Day01(String input) {
         super(input);
@@ -9,12 +11,32 @@ public class Day01 extends AOCDay {
 
     @Override
     public String part1() {
-        int[] input = this.getInputIntArray();
+        byte[] input = this.input.getBytes(StandardCharsets.UTF_8);
-        return String.valueOf(input[0]);
+        int res = 0;
+        if (input[0] == input[input.length - 1]) {
+            res += input[0] - 48;
+        }
+        for (int i = 0; i < input.length - 1; i++) {
+            if (input[i] == input[i+1]) {
+                res += input[i] - 48;
+            }
+        }
+
+        return String.valueOf(res);
     }
 
     @Override
     public String part2() {
-        return "bar";
+        byte[] input = this.input.getBytes(StandardCharsets.UTF_8);
+        int res = 0;
+        int half = input.length / 2;
+
+        for (int i = 0; i < half; i++) {
+            if (input[i] == input[half + i]) {
+                res += (input[i] - 48) * 2;
+            }
+        }
+
+        return String.valueOf(res);
     }
 }

test/de/domainforge/aoc2017/Day01Test.java

@@ -1,16 +1,45 @@
 package de.domainforge.aoc2017;
 
+import de.domainforge.tools.AOCDay;
+import de.domainforge.tools.FileHelper;
 import org.junit.jupiter.api.Test;
 
+import java.io.File;
+import java.io.IOException;
+import java.util.*;
+
 import static org.junit.jupiter.api.Assertions.*;
 
 class Day01Test {
 
     @Test
-    void part1() {
+    void part1() throws IOException {
+        HashMap<String, String> tests = new HashMap<>();
+        tests.put("input01_1_1", "3");
+        tests.put("input01_1_2", "4");
+        tests.put("input01_1_3", "0");
+        tests.put("input01_1_4", "9");
+
+        for (String inputFileName : tests.keySet()) {
+            File inputFile = new File(Objects.requireNonNull(Main.class.getClassLoader().getResource(inputFileName)).getPath());
+            AOCDay day01 = new Day01(FileHelper.readFileToString(inputFile));
+            assertEquals(tests.get(inputFileName), day01.part1());
+        }
     }
 
     @Test
-    void part2() {
+    void part2() throws IOException {
+        HashMap<String, String> tests = new HashMap<>();
+        tests.put("input01_2_1", "6");
+        tests.put("input01_2_2", "0");
+        tests.put("input01_2_3", "4");
+        tests.put("input01_2_4", "12");
+        tests.put("input01_2_5", "4");
+
+        for (String inputFileName : tests.keySet()) {
+            File inputFile = new File(Objects.requireNonNull(Main.class.getClassLoader().getResource(inputFileName)).getPath());
+            AOCDay day01 = new Day01(FileHelper.readFileToString(inputFile));
+            assertEquals(tests.get(inputFileName), day01.part2());
+        }
     }
 }

test/resources/input01_1_1

@@ -1,2 +1 @@
-3
 1122

test/resources/input01_1_2

@@ -1,2 +1 @@
-4
 1111

test/resources/input01_1_3

@@ -1,2 +1 @@
-0
 1234

test/resources/input01_1_4

@@ -1,2 +1 @@
-9
 91212129

test/resources/input01_2_1

@@ -0,0 +1 @@
+1212

test/resources/input01_2_2

@@ -0,0 +1 @@
+1221

test/resources/input01_2_3

@@ -0,0 +1 @@
+123425

test/resources/input01_2_4

@@ -0,0 +1 @@
+123123

test/resources/input01_2_5

@@ -0,0 +1 @@
+12131415