From 6c1e02f8cd8d823b80178c7372e6776229d62221 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Mon, 26 Oct 2009 12:08:07 -0700
Subject: tests: error out if socat + curl aren't reachable

This makes it easier to figure out why tests are failing
for people that forget to read t/README
---
 t/.gitignore  |  1 +
 t/GNUmakefile | 12 +++++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/t/.gitignore b/t/.gitignore
index 3003730..bee30c6 100644
--- a/t/.gitignore
+++ b/t/.gitignore
@@ -1,3 +1,4 @@
 /test-results-*
 /test-bin-*
 /random_blob
+/.dep+*
diff --git a/t/GNUmakefile b/t/GNUmakefile
index 5084643..d1b09cf 100644
--- a/t/GNUmakefile
+++ b/t/GNUmakefile
@@ -73,12 +73,22 @@ random_blob:
 
 $(T): random_blob
 
+dependencies := socat curl
+deps := $(addprefix .dep+,$(dependencies))
+$(deps): dep_bin = $(lastword $(subst +, ,$@))
+$(deps):
+	@which $(dep_bin) > $@+ 2>/dev/null || :
+	@test -s $@+ || \
+	  { echo >&2 "E `$(dep_bin)' not found in PATH=$(PATH)"; exit 1; }
+	@mv $@+ $@
+dep: $(deps)
+
 $(MODEL_T): export model = $(firstword $(subst ., ,$@))
 $(MODEL_T): script = $(subst $(model).,,$@)
 $(MODEL_T): trash/.gitignore
 $(MODEL_T): export RUBY := $(RUBY)
 $(MODEL_T): export PATH := $(CURDIR)/test-bin-$(RUBY_VERSION):$(PATH)
-$(MODEL_T): test-bin-$(RUBY_VERSION)/rainbows
+$(MODEL_T): test-bin-$(RUBY_VERSION)/rainbows dep
 	$(TRACER) $(SHELL) $(SH_TEST_OPTS) $(script) $(TEST_OPTS)
 
 trash/.gitignore:
-- 
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