Add test using real files for zlib

test/binaries/test-zlib-1.2.2.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main() {
+	printf("This program is designed to test the cve-bin-tool checker.");
+	printf("It outputs a few strings normally associated with zlib 1.2.2");
+	printf("They appear below this line.");
+	printf("------------------");
+	printf("deflate 1.2.2 ");
+	printf("too many length or distance symbols");
+
+	return 0;
+}

test/test_scanner.py

@@ -830,6 +830,20 @@ def _file_test(self, url, filename, package, version):
                     "CVE-2018-7208",
                 ],
             ),
+            (
+                "test-zlib-1.2.2.out",
+                "zlib",
+                "1.2.2",
+                [
+                    # Check for known cves in this version
+                    "CVE-2005-2096",
+                    "CVE-2005-1849",
+                ],
+                [
+                    # Check to make sure an older CVE isn't included
+                    "CVE-2016-9843"
+                ],
+            ),
         ],
     )
     def test_binaries(self, binary, package, version, are_in, not_in):
@@ -1087,6 +1101,18 @@ def test_binaries(self, binary, package, version, are_in, not_in):
                         "binutils",
                         "2.27",
                     ),
+                    (
+                        "http://mirror.centos.org/centos/7/os/x86_64/Packages/",
+                        "zlib-1.2.7-18.el7.x86_64.rpm",
+                        "zlib",
+                        "1.2.7",
+                    ),
+                    (
+                        "http://archive.ubuntu.com/ubuntu/pool/universe/z/zlib/",
+                        "zlib-bin_1.2.8.dfsg-1ubuntu1.1_amd64.deb",
+                        "zlib",
+                        "1.2.8",
+                    ),
                 ],
                 list(
                     map(