Add output to BaseTest, add Graph Tests

system/lib.py

@@ -157,6 +157,8 @@ class BaseTest(object):
     gpgFinder = GPGFinder()
     dotFinder = DotFinder()
 
+    output: bytes | None = None
+
     def test(self):
         self.prepare()
         try:

system/t13_graph/graph.py

@@ -1,4 +1,7 @@
 from PIL import Image
+import time
+import re
+import os
 from lib import BaseTest
 
 
@@ -23,3 +26,68 @@ def check(self):
             # check is horizontal
             self.check_gt(width, height)
             img.verify()
+
+        os.remove("graph.png")
+
+
+class GraphTest2(BaseTest):
+    """
+    Test that the graph is correctly generate when vertical layout is specified.
+    """
+
+    fixtureDB = True
+    fixturePool = True
+    fixtureCmds = [
+        "aptly snapshot create snap2 from mirror gnuplot-maverick",
+        "aptly publish snapshot -skip-signing snap2",
+    ]
+    runCmd = "aptly graph -output=graph.png -layout=vertical"
+
+    def check(self):
+        self.check_exists_in_cwd("graph.png")
+
+        with Image.open("graph.png") as img:
+            (width, height) = img.size
+            # check is horizontal
+            self.check_gt(height, width)
+            img.verify()
+
+        os.remove("graph.png")
+
+
+class GraphTest3(BaseTest):
+    """
+    Test that the graph is accessible at the temporary
+    file path aptly prints.
+    """
+
+    fixtureDB = True
+    fixturePool = True
+    fixtureCmds = [
+        "aptly snapshot create snap3 from mirror gnuplot-maverick",
+        "aptly publish snapshot -skip-signing snap3",
+    ]
+    runCmd = "aptly graph"
+
+    def check(self):
+        assert self.output is not None
+
+        file_regex = re.compile(r": (\S+).png")
+        temp_file = file_regex.search(self.output.decode())
+
+        assert temp_file is not None
+        temp_file = temp_file.group(1) + ".png"
+
+        self.check_exists(temp_file)
+        with Image.open(temp_file) as img:
+            (width, height) = img.size
+            # check is horizontal
+            self.check_gt(width, height)
+            img.verify()
+
+        # wait 1s to make sure it still exists
+        time.sleep(1)
+
+        assert os.path.isfile(temp_file)
+
+        os.remove(temp_file)