1 files changed, 61 insertions, 0 deletions
diff --git a/unit-tests/dotwait b/unit-tests/dotwait
new file mode 100644
index 0000000..43706af
--- /dev/null
+++ b/unit-tests/dotwait
@@ -0,0 +1,61 @@
+# $NetBSD: dotwait,v 1.1 2006/02/26 22:45:46 apb Exp $
+
+THISMAKEFILE:= ${.PARSEDIR}/${.PARSEFILE}
+
+TESTS= simple recursive shared cycle
+PAUSE= sleep 1
+
+# Use a .for loop rather than dependencies here, to ensure
+# that the tests are run one by one, with parallelism
+# only within tests.
+# Ignore "--- target ---" lines printed by parallel make.
+all:
+.for t in ${TESTS}
+	@${.MAKE} -f ${THISMAKEFILE} -j4 $t | grep -v "^--- "
+.endfor
+
+#
+# Within each test, the names of the sub-targets follow these
+# conventions:
+# * If it's expected that two or more targets may be made in parallel,
+#   then the target names will differ only in an alphabetic component
+#   such as ".a" or ".b".
+# * If it's expected that two or more targets should be made in sequence
+#   then the target names will differ in numeric components, such that
+#   lexical ordering of the target names matches the expected order
+#   in which the targets should be made.
+#
+# Targets may echo ${PARALLEL_TARG} to print a modified version
+# of their own name, in which alphabetic components like ".a" or ".b"
+# are converted to ".*".  Two targets that are expected to
+# be made in parallel will thus print the same strings, so that the
+# output is independent of the order in which these targets are made.
+#
+PARALLEL_TARG= ${.TARGET:C/\.[a-z]/.*/g:Q}
+.DEFAULT:
+	@echo ${PARALLEL_TARG}; ${PAUSE}; echo ${PARALLEL_TARG}
+_ECHOUSE: .USE
+	@echo ${PARALLEL_TARG}; ${PAUSE}; echo ${PARALLEL_TARG}
+
+# simple: no recursion, no cycles
+simple: simple.1 .WAIT simple.2
+
+# recursive: all children of the left hand side of the .WAIT
+# must be made before any child of the right hand side.
+recursive: recursive.1.99 .WAIT recursive.2.99
+recursive.1.99: recursive.1.1.a recursive.1.1.b _ECHOUSE
+recursive.2.99: recursive.2.1.a recursive.2.1.b _ECHOUSE
+
+# shared: both shared.1.99 and shared.2.99 depend on shared.0.
+# shared.0 must be made first, even though it is a child of
+# the right hand side of the .WAIT.
+shared: shared.1.99 .WAIT shared.2.99
+shared.1.99: shared.0 _ECHOUSE
+shared.2.99: shared.2.1 shared.0 _ECHOUSE
+
+# cycle: the cyclic dependency must not cause infinite recursion
+# leading to stack overflow and a crash.
+cycle: cycle.1.99 .WAIT cycle.2.99
+cycle.2.99: cycle.2.98 _ECHOUSE
+cycle.2.98: cycle.2.97 _ECHOUSE
+cycle.2.97: cycle.2.99 _ECHOUSE