Add regression test for LP: #1445239

Add a regression test that reproduced the hang of apt when a
partial file is present.

Git-Dch: ignore

2 files changed, 31 insertions, 0 deletions

diff --git a/test/integration/test-bug-lp1445239-download-loop b/test/integration/test-bug-lp1445239-download-loop
new file mode 100755
index 000000000..342e3c61e
--- /dev/null
+++ b/test/integration/test-bug-lp1445239-download-loop
@@ -0,0 +1,29 @@
+#!/bin/sh
+#
+# this is a regression test for LP: #1445239 where a partial download can
+# trigger an endless hang of the download method
+#
+
+set -e
+
+TESTDIR=$(readlink -f $(dirname $0))
+. $TESTDIR/framework
+setupenvironment
+configarchitecture 'amd64'
+
+changetowebserver
+webserverconfig 'aptwebserver::support::range' 'true'
+
+TESTFILE='aptarchive/testfile'
+dd if=/dev/zero of=$TESTFILE bs=100k count=1 2>/dev/null
+
+DOWNLOADLOG='rootdir/tmp/testdownloadfile.log'
+
+TARGET=testfile-downloaded
+dd if=/dev/zero of=$TARGET bs=99k count=1 2>/dev/null
+if ! downloadfile http://localhost:8080/testfile "$TARGET" > "$DOWNLOADLOG"; then
+    cat >&2 "$DOWNLOADLOG"
+    msgfail
+else
+    msgpass
+fi
diff --git a/test/interactive-helper/aptwebserver.cc b/test/interactive-helper/aptwebserver.cc
index 9c67b67e4..e02caa2b3 100644
--- a/test/interactive-helper/aptwebserver.cc
+++ b/test/interactive-helper/aptwebserver.cc
@@ -654,6 +654,8 @@ static void * handleClient(void * voidclient)				/*{{{*/
 		     if (filesize > filestart)
 		     {
 			data.Skip(filestart);
+                        // make sure to send content-range before conent-length
+                        // as regression test for LP: #1445239
 			std::ostringstream contentrange;
 			contentrange << "Content-Range: bytes " << filestart << "-"
 			   << filesize - 1 << "/" << filesize;