Add new test suite and basic cases

I'd rather write shell scripts in shell than shell scripts in
Ruby like was done with Unicorn.  We're a *nix-only project so
we'll embrace *nix tools to their fullest extent and as a
pleasant side-effect these test cases are immune to internal API
changes.

1 files changed, 64 insertions, 0 deletions

diff --git a/t/GNUmakefile b/t/GNUmakefile
new file mode 100644
index 0000000..1a95992
--- /dev/null
+++ b/t/GNUmakefile
@@ -0,0 +1,64 @@
+# we can run tests in parallel with GNU make
+
+all::
+
+ruby = ruby
+rainbows_lib := $(shell cd ../lib && pwd)
+-include ../local.mk
+ifeq ($(RUBY_VERSION),)
+  RUBY_VERSION := $(shell $(ruby) -e 'puts RUBY_VERSION')
+endif
+
+ifeq ($(RUBYLIB),)
+  RUBYLIB := $(rainbows_lib)
+else
+  RUBYLIB := $(rainbows_lib):$(RUBYLIB)
+endif
+export RUBYLIB
+
+T = $(wildcard t[0-9][0-9][0-9][0-9]-*.sh)
+
+all:: $(T)
+
+# can't rely on "set -o pipefail" since we don't require bash or ksh93 :<
+t_code = $@-$(RUBY_VERSION).code
+t_log = $@-$(RUBY_VERSION).log
+t_run = $(TRACER) $(SHELL) $(TEST_OPTS) $@
+
+# prefix stdout messages with ':', and stderr messages with '!'
+t_wrap = ( ( ( $(RM) $(t_code); \
+  $(t_run); \
+  echo $$? > $(t_code) ) \
+  | sed 's/^/$(pfx):/' 1>&3 ) 2>&1 \
+  | sed 's/^/$(pfx)!/' 1>&2 ) 3>&1
+
+ifndef V
+  quiet_pre = @echo '* $@';
+  quiet_post = > $(t_log) 2>&1; exit $$(cat $(t_code))
+  pfx =
+else
+  quiet_pre = @echo '* $@';
+  quiet_post = 2>&1 | tee $(t_log); exit $$(cat $(t_code))
+  pfx = $@
+endif
+
+# TRACER='strace -f -o $@.strace -s 100000'
+run_test = $(quiet_pre) ( $(t_wrap) ) $(quiet_post)
+
+test-bin-$(RUBY_VERSION)/rainbows: ruby_bin = $(shell which $(ruby))
+test-bin-$(RUBY_VERSION)/rainbows: ../bin/rainbows
+        mkdir -p $(@D)
+        install -m 755 $^ $@+
+        $(ruby) -i -p -e '$$_.gsub!(%r{^#!.*$$},"#!$(ruby_bin)")' $@+
+        cmp $@+ $@ || mv $@+ $@
+        $(RM) $@+
+
+$(T): export ruby := $(ruby)
+$(T): export PATH := $(CURDIR)/test-bin-$(RUBY_VERSION):$(PATH)
+$(T): test-bin-$(RUBY_VERSION)/rainbows
+        $(run_test)
+
+clean:
+        $(RM) -r *.log *.code test-bin-$(RUBY_VERSION)
+
+.PHONY: $(T) clean