test-lib: Add support for multiple test prerequisites

diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index f2c73369a5b93544ee837229da965d7efbdc45bf..2887677391e795c70c210368970df6ff6350fbd0 100755 (executable)
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -73,6 +73,23 @@ then
        exit 1
 fi
 
+test_set_prereq HAVETHIS
+haveit=no
+test_expect_success HAVETHIS,HAVEIT 'test runs if prerequisites are satisfied' '
+    test_have_prereq HAVEIT &&
+    test_have_prereq HAVETHIS &&
+    haveit=yes
+'
+donthaveit=yes
+test_expect_success HAVEIT,DONTHAVEIT 'unmet prerequisites causes test to be skipped' '
+    donthaveit=no
+'
+if test $haveit$donthaveit != yesyes
+then
+       say "bug in test framework: multiple prerequisite tags do not work reliably"
+       exit 1
+fi
+
 clean=no
 test_expect_success 'tests clean up after themselves' '
     test_when_finished clean=yes