From 5edbd2ff32f6efb87e42094dbf1b3c2abd2f6dd3 Mon Sep 17 00:00:00 2001
From: Arne Wischer <arne.wischer@dataport.de>
Date: Fri, 13 Dec 2019 16:45:10 +0100
Subject: [PATCH] massive overhaul. switched to pytest

---
 .vscode/settings.json |  8 ++++-
 advent.py             | 26 ++-------------
 days/__init__.py      |  9 +----
 days/day1.py          | 27 ---------------
 days/day2.py          | 28 ----------------
 days/day3.py          | 55 -------------------------------
 days/day4.py          | 35 --------------------
 days/day5.py          | 19 -----------
 days/day6.py          | 35 --------------------
 days/day7.py          | 44 -------------------------
 days/day8.py          | 53 -----------------------------
 days/test_comp.py     | 77 +++++++++++++++++++++++++++++++------------
 days/test_day1.py     | 28 ++++++++++++++++
 days/test_day2.py     | 29 ++++++++++++++++
 days/test_day3.py     | 56 +++++++++++++++++++++++++++++++
 days/test_day4.py     | 35 ++++++++++++++++++++
 days/test_day5.py     | 20 +++++++++++
 days/test_day6.py     | 35 ++++++++++++++++++++
 days/test_day7.py     | 45 +++++++++++++++++++++++++
 days/test_day8.py     | 54 ++++++++++++++++++++++++++++++
 pytest.ini            |  2 ++
 21 files changed, 370 insertions(+), 350 deletions(-)
 delete mode 100644 days/day1.py
 delete mode 100644 days/day2.py
 delete mode 100644 days/day3.py
 delete mode 100644 days/day4.py
 delete mode 100644 days/day5.py
 delete mode 100644 days/day6.py
 delete mode 100644 days/day7.py
 delete mode 100644 days/day8.py
 create mode 100644 days/test_day1.py
 create mode 100644 days/test_day2.py
 create mode 100644 days/test_day3.py
 create mode 100644 days/test_day4.py
 create mode 100644 days/test_day5.py
 create mode 100644 days/test_day6.py
 create mode 100644 days/test_day7.py
 create mode 100644 days/test_day8.py
 create mode 100644 pytest.ini

diff --git a/.vscode/settings.json b/.vscode/settings.json
index 2222bad..89eb512 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,5 +2,11 @@
     "python.linting.pylintEnabled": false,
     "python.linting.pycodestyleEnabled": true,
     "python.linting.enabled": true,
-    "autoDocstring.docstringFormat": "google"
+    "autoDocstring.docstringFormat": "google",
+    "python.testing.pytestArgs": [
+        "days"
+    ],
+    "python.testing.unittestEnabled": false,
+    "python.testing.nosetestsEnabled": false,
+    "python.testing.pytestEnabled": true
 }
\ No newline at end of file
diff --git a/advent.py b/advent.py
index 4af3b8c..c501401 100644
--- a/advent.py
+++ b/advent.py
@@ -1,28 +1,6 @@
 from days import *
-import unittest
-
-
-def suite():
-    suite = unittest.TestSuite()
-    suite.addTest(Day1('test_day1a'))
-    suite.addTest(Day1('test_day1b'))
-    suite.addTest(Day2('test_day2a'))
-    suite.addTest(Day2('test_day2b'))
-    suite.addTest(Day3('test_day3a'))
-    suite.addTest(Day3('test_day3b'))
-    suite.addTest(Day4('test_day4a'))
-    suite.addTest(Day4('test_day4b'))
-    suite.addTest(Day5('test_day5a'))
-    suite.addTest(Day5('test_day5b'))
-    suite.addTest(Day6('test_day6a'))
-    suite.addTest(Day6('test_day6b'))
-    suite.addTest(Day7('test_day7a'))
-    suite.addTest(Day7('test_day7b'))
-    suite.addTest(Day8('test_day8a'))
-    suite.addTest(Day8('test_day8b'))
-    return suite
+import pytest
 
 
 if __name__ == "__main__":
-    runner = unittest.TextTestRunner(verbosity=2)
-    runner.run(suite())
+    pytest.main()
diff --git a/days/__init__.py b/days/__init__.py
index 16cb65f..fe0e0f1 100644
--- a/days/__init__.py
+++ b/days/__init__.py
@@ -1,8 +1 @@
-from .day1 import Day1
-from .day2 import Day2
-from .day3 import Day3
-from .day4 import Day4
-from .day5 import Day5
-from .day6 import Day6
-from .day7 import Day7
-from .day8 import Day8
+from .comp import *
diff --git a/days/day1.py b/days/day1.py
deleted file mode 100644
index 12769e0..0000000
--- a/days/day1.py
+++ /dev/null
@@ -1,27 +0,0 @@
-import unittest
-import os
-
-
-class Day1(unittest.TestCase):
-    inputfile = os.path.join(os.path.dirname(__file__), "input/day1_input")
-
-    def calc_fuel(self, mass):
-        fuel = mass // 3 - 2
-        return fuel + self.calc_fuel(fuel) if fuel > 0 else 0
-
-    def test_day1a(self):
-        fuel = 0
-        with open(self.inputfile) as fp:
-            for _, line in enumerate(fp):
-                fuel += int(line) // 3 - 2
-        self.assertEqual(fuel, 3402609)
-
-    def test_day1b(self):
-        sumfuel = 0
-        with open(self.inputfile) as fp:
-            for _, line in enumerate(fp):
-                sumfuel = 0
-                while line:
-                    sumfuel += self.calc_fuel(int(line))
-                    line = fp.readline()
-        self.assertEqual(sumfuel, 5101025)
diff --git a/days/day2.py b/days/day2.py
deleted file mode 100644
index f16d0c9..0000000
--- a/days/day2.py
+++ /dev/null
@@ -1,28 +0,0 @@
-import unittest
-import os
-from typing import List
-from .comp import OpcodeComputer
-
-
-class Day2(unittest.TestCase):
-    inputfile = os.path.join(os.path.dirname(__file__), "input/day2_input")
-
-    def test_day2a(self):
-        comp = OpcodeComputer(self.inputfile)
-        comp.memory[1] = 12
-        comp.memory[2] = 2
-        self.assertEqual(comp.process_all(), 5098658)
-
-    def test_day2b(self):
-        comp = OpcodeComputer(self.inputfile)
-        a: int = 0
-        b: int = 0
-        for a, b in [(x, y) for x in range(100) for y in range(100)]:
-            comp.reset()
-            comp.memory[1] = int(a)
-            comp.memory[2] = int(b)
-
-            result = comp.process_all()
-            if result == 19690720:
-                break
-        self.assertEqual(100 * a + b, 5064)
diff --git a/days/day3.py b/days/day3.py
deleted file mode 100644
index 9150d1d..0000000
--- a/days/day3.py
+++ /dev/null
@@ -1,55 +0,0 @@
-import unittest
-import os
-import sys
-
-
-class Day3(unittest.TestCase):
-    inputfile = os.path.join(os.path.dirname(__file__), "input/day3_input")
-
-    def draw_path(self, inst):
-        path = set()
-        dists = {}
-        cnt = 0
-        ptr = (0, 0)
-        for d, l in ((x[0], x[1:]) for x in inst.split(',')):
-            for _ in range(int(l)):
-                if d == 'D':
-                    ptr = (ptr[0], ptr[1] - 1)
-                elif d == 'R':
-                    ptr = (ptr[0] + 1, ptr[1])
-                elif d == 'U':
-                    ptr = (ptr[0], ptr[1] + 1)
-                else:
-                    ptr = (ptr[0] - 1, ptr[1])
-                cnt += 1
-                if ptr not in dists or dists[ptr] > cnt:
-                    dists[ptr] = cnt
-                path.add(ptr)
-        return (path, dists)
-
-    def test_day3a(self):
-        paths = []
-        result = sys.maxsize
-
-        with open(self.inputfile) as fp:
-            for line in fp.readlines():
-                paths.append(self.draw_path(line)[0])
-        for x, y in paths[0].intersection(paths[1]):
-            dist = abs(x) + abs(y)
-            result = dist if dist < result else result
-        self.assertEqual(result, 399)
-
-    def test_day3b(self):
-        paths = []
-        distances = []
-        result = sys.maxsize
-
-        with open(self.inputfile) as fp:
-            for line in fp.readlines():
-                computed = self.draw_path(line)
-                paths.append(computed[0])
-                distances.append(computed[1])
-        for point in paths[0].intersection(paths[1]):
-            dist = distances[0][point] + distances[1][point]
-            result = dist if dist < result else result
-        self.assertEqual(result, 15678)
diff --git a/days/day4.py b/days/day4.py
deleted file mode 100644
index b8377c3..0000000
--- a/days/day4.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import unittest
-import os
-from collections import Counter
-
-
-class Day4(unittest.TestCase):
-    def check_num(self, num):
-        numarr = [int(d) for d in (str(num))]
-        for p in range(1, 6):
-            if numarr[p-1] > numarr[p]:
-                return False
-        c = Counter(str(num))
-        return len({k: v for k, v in c.items() if v >= 2}) > 0
-
-    def check_num_grp(self, num):
-        numarr = [int(d) for d in (str(num))]
-        for p in range(1, 6):
-            if numarr[p-1] > numarr[p]:
-                return False
-        c = Counter(str(num))
-        return len({k: v for k, v in c.items() if v == 2}) > 0
-
-    def test_day4a(self):
-        counter = 0
-        for num in range(168630, 718099):
-            if self.check_num(num) is True:
-                counter += 1
-        self.assertEqual(counter, 1686)
-
-    def test_day4b(self):
-        counter = 0
-        for num in range(168630, 718099):
-            if self.check_num_grp(num) is True:
-                counter += 1
-        self.assertEqual(counter, 1145)
diff --git a/days/day5.py b/days/day5.py
deleted file mode 100644
index 53530c5..0000000
--- a/days/day5.py
+++ /dev/null
@@ -1,19 +0,0 @@
-import unittest
-import os
-from .comp import OpcodeComputer
-
-
-class Day5(unittest.TestCase):
-    inputfile = os.path.join(os.path.dirname(__file__), "input/day5_input")
-
-    def test_day5a(self):
-        sut = OpcodeComputer(self.inputfile)
-
-        outp = list(sut.process_op([1]))
-        self.assertEqual(int(outp[-1]), 8332629)
-
-    def test_day5b(self):
-        sut = OpcodeComputer(self.inputfile)
-
-        outp = list(sut.process_op([5]))
-        self.assertEqual(int(outp[0]), 8805067)
diff --git a/days/day6.py b/days/day6.py
deleted file mode 100644
index fa5361e..0000000
--- a/days/day6.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import unittest
-import os
-from typing import Dict
-
-
-class Day6(unittest.TestCase):
-    def get_code(self) -> Dict[str, str]:
-        inputfile = os.path.join(os.path.dirname(__file__), "input/day6_input")
-        with open(inputfile) as fp:
-            return {x[1].rstrip(): x[0] for x in
-                    (y.split(')') for y in fp.readlines())}
-
-    def test_day6a(self):
-        orbs = self.get_code()
-        cnt = 0
-        for orb in orbs.keys():
-            n = orb
-            cnt -= 1
-            while n:
-                n = orbs.get(n)
-                cnt += 1
-        self.assertEqual(cnt, 241064)
-
-    def test_day6b(self):
-        orbs = self.get_code()
-        c = orbs['YOU']
-        k = []
-        while c:
-            k.append(c)
-            c = orbs.get(c)
-        c = orbs['SAN']
-        while c:
-            k.remove(c) if c in k else k.append(c)
-            c = orbs.get(c)
-        self.assertEqual(len(k), 418)
diff --git a/days/day7.py b/days/day7.py
deleted file mode 100644
index a0081fe..0000000
--- a/days/day7.py
+++ /dev/null
@@ -1,44 +0,0 @@
-import unittest
-import os
-from .comp import OpcodeComputer
-import itertools
-
-
-class Day7(unittest.TestCase):
-    inputfile = os.path.join(os.path.dirname(__file__), "input/day7_input")
-
-    def test_day7a(self):
-        com = OpcodeComputer(self.inputfile)
-        configs = itertools.permutations(range(5), 5)
-
-        res: int = 0
-        for conf in configs:
-            sig: int = 0
-            for phase in conf:
-                sig = int(list(com.process_op([phase, sig]))[0])
-            res = sig if sig > res else res
-
-        self.assertEqual(res, 21000)
-
-    def test_day7b(self):
-        """
-        Shoutout to OverjoyedBanana for his helpful solution
-        https://www.reddit.com/r/adventofcode/comments/e7om28/2019_day_7_part_2_python3_help_with/fa3bh4w/
-        https://pastebin.com/cyLTHUYV
-        """
-        com = OpcodeComputer(self.inputfile)
-        res: int = 0
-        for config in itertools.permutations(range(5, 10), 5):
-            sig: int = 0
-            buffer = [[conf] for conf in config]
-            comps = list(map(com.process_op, buffer))
-
-            try:
-                while True:
-                    for i in range(5):
-                        buffer[i].append(sig)
-                        sig = int(next(comps[i]))
-            except StopIteration:
-                pass
-            res = sig if sig > res else res
-        self.assertEqual(res, 61379886)
diff --git a/days/day8.py b/days/day8.py
deleted file mode 100644
index 2d2beed..0000000
--- a/days/day8.py
+++ /dev/null
@@ -1,53 +0,0 @@
-import unittest
-import os
-import sys
-
-
-class Day8(unittest.TestCase):
-    imgsize = 25 * 6
-
-    def get_image(self):
-        inputfile = os.path.join(os.path.dirname(__file__), "input/day8_input")
-        with open(inputfile) as fp:
-            img = [int(k) for k in str(fp.readline())]
-        breaks = [self.imgsize*k for k in range(len(img)//self.imgsize+1)]
-
-        return [img[b:e] for b, e in zip(breaks, breaks[1:])]
-
-    def test_day8a(self):
-        layers = self.get_image()
-
-        min = sys.maxsize
-        layer = 0
-        for i, l in enumerate(layers):
-            z = l.count(0)
-            if z < min:
-                min = z
-                layer = i
-        solution = layers[layer].count(1)*layers[layer].count(2)
-        self.assertEqual(solution, 2806)
-
-    def test_day8b(self):
-        layers = self.get_image()
-        result = [2 for i in range(self.imgsize)]
-
-        for pos in range(self.imgsize):
-            for l in layers:
-                result[pos] = l[pos] if result[pos] == 2 else result[pos]
-
-        result = ['#' if x == 0 else '.' if x == 1 else ' ' for x in result]
-        for k in range(len(result)):
-            # print(result[k], end='')
-            if (k+1) % 25 == 0:
-                # print('')
-                pass
-
-        expected = """\
-....#...####..##..##...##\
-###.#.##.####.#.##.#.##.#\
-##.##...#####.#.##.#...##\
-#.###.##.####.#....#.##.#\
-.####.##.#.##.#.##.#.##.#\
-....#...###..##.##.#...##\
-"""
-        self.assertEqual("".join(result), expected)
diff --git a/days/test_comp.py b/days/test_comp.py
index 37e6f56..7259a6d 100644
--- a/days/test_comp.py
+++ b/days/test_comp.py
@@ -1,31 +1,66 @@
 import unittest
 import os
-from .comp import OpcodeComputer
+from . import OpcodeComputer
 
 
-class Test_OpcodeComputer(unittest.TestCase):
-    inputfile = os.path.join(os.path.dirname(__file__), "input/day9_input")
+inputfile = os.path.join(os.path.dirname(__file__), "input/day9_input")
 
-    def test_addition(self):
-        com = OpcodeComputer(mem="1,0,0,0,99")
-        com.process_all()
-        self.assertEqual(com.memory, [2, 0, 0, 0, 99])
 
-    def test_multiplication(self):
-        com = OpcodeComputer(mem="2,3,0,3,99")
-        com.process_all()
-        self.assertEqual(com.memory, [2, 3, 0, 6, 99])
+def test_addition():
+    com = OpcodeComputer(mem="1,0,0,0,99")
+    com.process_all()
+    assert com.memory == [2, 0, 0, 0, 99]
 
-    def test_multiplication2(self):
-        com = OpcodeComputer(mem="2,4,4,5,99,0")
-        com.process_all()
-        self.assertEqual(com.memory, [2, 4, 4, 5, 99, 9801])
 
-    def test_addition2(self):
-        com = OpcodeComputer(mem="1,1,1,4,99,5,6,0,99")
-        com.process_all()
-        self.assertEqual(com.memory, [30, 1, 1, 4, 2, 5, 6, 0, 99])
+def test_multiplication():
+    com = OpcodeComputer(mem="2,3,0,3,99")
+    com.process_all()
+    assert com.memory == [2, 3, 0, 6, 99]
 
 
-if __name__ == "__main__":
-    unittest.main()
+def test_multiplication2():
+    com = OpcodeComputer(mem="2,4,4,5,99,0")
+    com.process_all()
+    assert com.memory == [2, 4, 4, 5, 99, 9801]
+
+
+def test_addition2():
+    com = OpcodeComputer(mem="1,1,1,4,99,5,6,0,99")
+    com.process_all()
+    assert com.memory == [30, 1, 1, 4, 2, 5, 6, 0, 99]
+
+
+def test_position1():
+    com = OpcodeComputer(mem="3,9,8,9,10,9,4,9,99,-1,8")
+    res = list(com.process_op([8]))
+    assert res[0] == '1'
+
+
+def test_position2():
+    com = OpcodeComputer(mem="3,9,7,9,10,9,4,9,99,-1,8")
+    res = list(com.process_op([7]))
+    assert res[0] == '1'
+
+
+def test_immediate1():
+    com = OpcodeComputer(mem="3,3,1108,-1,8,3,4,3,99")
+    res = list(com.process_op([8]))
+    assert res[0] == '1'
+
+
+def test_immediate2():
+    com = OpcodeComputer(mem="3,3,1107,-1,8,3,4,3,99")
+    res = list(com.process_op([7]))
+    assert res[0] == '1'
+
+
+def test_jump_position():
+    com = OpcodeComputer(mem="3,12,6,12,15,1,13,14,13,4,13,99,-1,0,1,9")
+    res = list(com.process_op([0]))
+    assert res[0] == '0'
+
+
+def test_jump_immediate():
+    com = OpcodeComputer(mem="3,3,1105,-1,9,1101,0,0,12,4,12,99,1")
+    res = list(com.process_op([0]))
+    assert res[0] == '0'
diff --git a/days/test_day1.py b/days/test_day1.py
new file mode 100644
index 0000000..691c1cc
--- /dev/null
+++ b/days/test_day1.py
@@ -0,0 +1,28 @@
+import os
+
+
+inputfile = os.path.join(os.path.dirname(__file__), "input/day1_input")
+
+
+def calc_fuel(mass):
+    fuel = mass // 3 - 2
+    return fuel + calc_fuel(fuel) if fuel > 0 else 0
+
+
+def test_day1a():
+    fuel = 0
+    with open(inputfile) as fp:
+        for _, line in enumerate(fp):
+            fuel += int(line) // 3 - 2
+    assert fuel == 3402609
+
+
+def test_day1b():
+    sumfuel = 0
+    with open(inputfile) as fp:
+        for _, line in enumerate(fp):
+            sumfuel = 0
+            while line:
+                sumfuel += calc_fuel(int(line))
+                line = fp.readline()
+    assert sumfuel == 5101025
diff --git a/days/test_day2.py b/days/test_day2.py
new file mode 100644
index 0000000..cec0be0
--- /dev/null
+++ b/days/test_day2.py
@@ -0,0 +1,29 @@
+import os
+
+from . import OpcodeComputer
+
+
+inputfile = os.path.join(os.path.dirname(__file__), "input/day2_input")
+
+
+def test_day2a():
+    comp = OpcodeComputer(inputfile)
+    comp.memory[1] = 12
+    comp.memory[2] = 2
+
+    assert comp.process_all() == 5098658
+
+
+def test_day2b():
+    comp = OpcodeComputer(inputfile)
+    a: int = 0
+    b: int = 0
+    for a, b in [(x, y) for x in range(100) for y in range(100)]:
+        comp.reset()
+        comp.memory[1] = int(a)
+        comp.memory[2] = int(b)
+
+        result = comp.process_all()
+        if result == 19690720:
+            break
+    assert 100 * a + b == 5064
diff --git a/days/test_day3.py b/days/test_day3.py
new file mode 100644
index 0000000..1cf1cfa
--- /dev/null
+++ b/days/test_day3.py
@@ -0,0 +1,56 @@
+import os
+import sys
+
+
+inputfile = os.path.join(os.path.dirname(__file__), "input/day3_input")
+
+
+def draw_path(inst):
+    path = set()
+    dists = {}
+    cnt = 0
+    ptr = (0, 0)
+    for d, l in ((x[0], x[1:]) for x in inst.split(',')):
+        for _ in range(int(l)):
+            if d == 'D':
+                ptr = (ptr[0], ptr[1] - 1)
+            elif d == 'R':
+                ptr = (ptr[0] + 1, ptr[1])
+            elif d == 'U':
+                ptr = (ptr[0], ptr[1] + 1)
+            else:
+                ptr = (ptr[0] - 1, ptr[1])
+            cnt += 1
+            if ptr not in dists or dists[ptr] > cnt:
+                dists[ptr] = cnt
+            path.add(ptr)
+    return (path, dists)
+
+
+def test_day3a():
+    paths = []
+    result = sys.maxsize
+
+    with open(inputfile) as fp:
+        for line in fp.readlines():
+            paths.append(draw_path(line)[0])
+    for x, y in paths[0].intersection(paths[1]):
+        dist = abs(x) + abs(y)
+        result = dist if dist < result else result
+    assert result == 399
+
+
+def test_day3b():
+    paths = []
+    distances = []
+    result = sys.maxsize
+
+    with open(inputfile) as fp:
+        for line in fp.readlines():
+            computed = draw_path(line)
+            paths.append(computed[0])
+            distances.append(computed[1])
+    for point in paths[0].intersection(paths[1]):
+        dist = distances[0][point] + distances[1][point]
+        result = dist if dist < result else result
+    assert result == 15678
diff --git a/days/test_day4.py b/days/test_day4.py
new file mode 100644
index 0000000..6dc42fc
--- /dev/null
+++ b/days/test_day4.py
@@ -0,0 +1,35 @@
+from collections import Counter
+
+
+def check_num(num):
+    numarr = [int(d) for d in (str(num))]
+    for p in range(1, 6):
+        if numarr[p-1] > numarr[p]:
+            return False
+    c = Counter(str(num))
+    return len({k: v for k, v in c.items() if v >= 2}) > 0
+
+
+def check_num_grp(num):
+    numarr = [int(d) for d in (str(num))]
+    for p in range(1, 6):
+        if numarr[p-1] > numarr[p]:
+            return False
+    c = Counter(str(num))
+    return len({k: v for k, v in c.items() if v == 2}) > 0
+
+
+def test_day4a():
+    counter = 0
+    for num in range(168630, 718099):
+        if check_num(num) is True:
+            counter += 1
+    assert counter == 1686
+
+
+def test_day4b():
+    counter = 0
+    for num in range(168630, 718099):
+        if check_num_grp(num) is True:
+            counter += 1
+    assert counter == 1145
diff --git a/days/test_day5.py b/days/test_day5.py
new file mode 100644
index 0000000..b46545b
--- /dev/null
+++ b/days/test_day5.py
@@ -0,0 +1,20 @@
+import os
+
+from . import OpcodeComputer
+
+
+inputfile = os.path.join(os.path.dirname(__file__), "input/day5_input")
+
+
+def test_day5a():
+    sut = OpcodeComputer(inputfile)
+
+    outp = list(sut.process_op([1]))
+    assert int(outp[-1]) == 8332629
+
+
+def test_day5b():
+    sut = OpcodeComputer(inputfile)
+
+    outp = list(sut.process_op([5]))
+    assert int(outp[0]) == 8805067
diff --git a/days/test_day6.py b/days/test_day6.py
new file mode 100644
index 0000000..035fe4c
--- /dev/null
+++ b/days/test_day6.py
@@ -0,0 +1,35 @@
+import os
+from typing import Dict
+
+
+def get_code() -> Dict[str, str]:
+    inputfile = os.path.join(os.path.dirname(__file__), "input/day6_input")
+    with open(inputfile) as fp:
+        return {x[1].rstrip(): x[0] for x in
+                (y.split(')') for y in fp.readlines())}
+
+
+def test_day6a():
+    orbs = get_code()
+    cnt = 0
+    for orb in orbs.keys():
+        n = orb
+        cnt -= 1
+        while n:
+            n = orbs.get(n)
+            cnt += 1
+    assert cnt == 241064
+
+
+def test_day6b():
+    orbs = get_code()
+    c = orbs['YOU']
+    k = []
+    while c:
+        k.append(c)
+        c = orbs.get(c)
+    c = orbs['SAN']
+    while c:
+        k.remove(c) if c in k else k.append(c)
+        c = orbs.get(c)
+    assert len(k) == 418
diff --git a/days/test_day7.py b/days/test_day7.py
new file mode 100644
index 0000000..3dc3f4a
--- /dev/null
+++ b/days/test_day7.py
@@ -0,0 +1,45 @@
+import itertools
+import os
+
+from . import OpcodeComputer
+
+
+inputfile = os.path.join(os.path.dirname(__file__), "input/day7_input")
+
+
+def test_day7a():
+    com = OpcodeComputer(inputfile)
+    configs = itertools.permutations(range(5), 5)
+
+    res: int = 0
+    for conf in configs:
+        sig: int = 0
+        for phase in conf:
+            sig = int(list(com.process_op([phase, sig]))[0])
+        res = sig if sig > res else res
+
+    assert res == 21000
+
+
+def test_day7b():
+    """
+    Shoutout to OverjoyedBanana for his helpful solution
+    https://www.reddit.com/r/adventofcode/comments/e7om28/2019_day_7_part_2_python3_help_with/fa3bh4w/
+    https://pastebin.com/cyLTHUYV
+    """
+    com = OpcodeComputer(inputfile)
+    res: int = 0
+    for config in itertools.permutations(range(5, 10), 5):
+        sig: int = 0
+        buffer = [[conf] for conf in config]
+        comps = list(map(com.process_op, buffer))
+
+        try:
+            while True:
+                for i in range(5):
+                    buffer[i].append(sig)
+                    sig = int(next(comps[i]))
+        except StopIteration:
+            pass
+        res = sig if sig > res else res
+    assert res == 61379886
diff --git a/days/test_day8.py b/days/test_day8.py
new file mode 100644
index 0000000..3fff431
--- /dev/null
+++ b/days/test_day8.py
@@ -0,0 +1,54 @@
+import os
+import sys
+
+
+imgsize = 25 * 6
+
+
+def get_image():
+    inputfile = os.path.join(os.path.dirname(__file__), "input/day8_input")
+    with open(inputfile) as fp:
+        img = [int(k) for k in str(fp.readline())]
+    breaks = [imgsize*k for k in range(len(img)//imgsize+1)]
+
+    return [img[b:e] for b, e in zip(breaks, breaks[1:])]
+
+
+def test_day8a():
+    layers = get_image()
+
+    min = sys.maxsize
+    layer = 0
+    for i, l in enumerate(layers):
+        z = l.count(0)
+        if z < min:
+            min = z
+            layer = i
+    solution = layers[layer].count(1)*layers[layer].count(2)
+    assert solution == 2806
+
+
+def test_day8b():
+    layers = get_image()
+    result = [2 for i in range(imgsize)]
+
+    for pos in range(imgsize):
+        for l in layers:
+            result[pos] = l[pos] if result[pos] == 2 else result[pos]
+
+    result = ['#' if x == 0 else '.' if x == 1 else ' ' for x in result]
+    for k in range(len(result)):
+        # print(result[k], end='')
+        if (k+1) % 25 == 0:
+            # print('')
+            pass
+
+    expected = """\
+....#...####..##..##...##\
+###.#.##.####.#.##.#.##.#\
+##.##...#####.#.##.#...##\
+#.###.##.####.#....#.##.#\
+.####.##.#.##.#.##.#.##.#\
+....#...###..##.##.#...##\
+"""
+    assert "".join(result) == expected
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..51d0c9c
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,2 @@
+[pytest]
+junit_family=legacy
\ No newline at end of file