test suite: Provide t-defdistro (for use with t-alt-test)

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/tests/lib b/tests/lib
index 1af0288aeace7db78adc3b6518af4529dc1972af..ae3bb7f8429610c95ddb91e52569dbb8ddc878bc 100644 (file)
--- a/tests/lib
+++ b/tests/lib
@@ -28,6 +28,8 @@ t-set-intree
 : ${DGIT_TEST_DEBUG=-D}
 export DGIT_TEST_DEBUG
 
+: ${DGIT_TEST_DISTRO+ ${distro=${DGIT_TEST_DISTRO}}}
+
 export GIT_COMMITTER_DATE='1440253867 +0100'
 export GIT_AUTHOR_DATE='1440253867 +0100'
 
@@ -778,6 +780,12 @@ t-822-field () {
        ' <$file
 }
 
+t-defdistro () {
+       export DGIT_TEST_DISTRO=''
+       t-git-config dgit-suite.sid.distro test-dummy
+       t-git-config dgit-suite.unstable.distro test-dummy
+}
+
 t-stunt-envvar () {
        local var=$1
        local tstunt=$2