quilt-gbp test: Set DGIT_TEST_TOLERATE_UNPATCHED_CLEAN

In quilt-gbp we want to test whether dgit detects that quilt fixups
cannot be linear because the user has failed to pass an appropriate
quilt option in a patches-unapplied tree.

build_source() cleans before applying patches, and the package's clean
target might error out because patches are not applied.  This prevents
dgit from attempting quilt linearisation and thus determining that the
tree might be patches-unapplied.  So set an environment variable
telling the package's clean target not to do that.

Signed-off-by: Sean Whitton <spwhitton@spwhitton.name>
Acked-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/tests/quilt-gbp b/tests/tests/quilt-gbp
index 3ef89e8..cf148f6 100755
--- a/tests/tests/quilt-gbp
+++ b/tests/tests/quilt-gbp
@@ -2,6 +2,22 @@
 set -e
 . tests/lib
 
+# `dgit build-source` cleans before applying patches.  However, the
+# clean targets of 3.0 (quilt) packages are allowed to assume that
+# patches are applied.  If they are not, the clean targets can
+# misbehave in basically two ways:
+#
+# - fail to clean everything
+# - error out and stop the build
+#
+# In this test, what we want to see is whether dgit detects that quilt
+# fixup cannot be linear because the user has failed to pass --gbp.
+# So we need to ensure the package's clean target does not error out,
+# because that blocks dgit attempting quilt linearisation.  This
+# environment variable tells the example package's clean target not to
+# error out if it notices that patches have not yet been applied.
+export DGIT_TEST_TOLERATE_UNPATCHED_CLEAN=true
+
 t-tstunt-parsechangelog
 
 t-gbp-example-prep