[PATCH 1/2] Integration test for --no-default-middleware option

[PATCH 1/2] Integration test for --no-default-middleware option

[Micah Chalmer]

This adds an integration test to ensure that the -N option
continues to function as documented.
---
t/fails-rack-lint.ru             |  5 +++++
t/t0300-no-default-middleware.sh | 15 +++++++++++++++
2 files changed, 20 insertions(+)
create mode 100644 t/fails-rack-lint.ru
create mode 100644 t/t0300-no-default-middleware.sh

diff --git a/t/fails-rack-lint.ru b/t/fails-rack-lint.ru
new file mode 100644
index 0000000..82bfb5f
--- /dev/null
+++ b/t/fails-rack-lint.ru
@@ -0,0 +1,5 @@
+# This rack app returns an invalid status code, which will cause
+# Rack::Lint to throw an exception if it is present.  This
+# is used to check whether Rack::Lint is in the stack or not.
+
+run lambda {|env| return [42, {}, ["Rack::Lint wasn't there if you see this"]]}
diff --git a/t/t0300-no-default-middleware.sh b/t/t0300-no-default-middleware.sh
new file mode 100644
index 0000000..2e8f8f8
--- /dev/null
+++ b/t/t0300-no-default-middleware.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+. ./test-lib.sh
+t_plan 2 "test the -N / --no-default-middleware option"
+
+t_begin "setup and start" && {
+    unicorn_setup
+    unicorn -N -D -c $unicorn_config fails-rack-lint.ru
+    unicorn_wait_start
+}
+
+t_begin "check exit status with Rack::Lint not present" && {
+    test 42 -eq "$(curl -sf -o/dev/null -w'%{http_code}' http://$listen/)"
+}
+
+t_done
-- 
1.8.2

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Re: [PATCH 1/2] Integration test for --no-default-middleware option

[Eric Wong]

Micah Chalmer <micah@micahchalmer.net> wrote:
> This adds an integration test to ensure that the -N option
> continues to function as documented.

Thanks for this fix.  To avoid breaking bisection, I always keep
previously-failing test cases in the same commit as the fix, so I'll
squash your commits together.

Your 2/2 came whitespace mangled, too.  The git-format-patch(1) manpage
has info for popular mailers, and git also comes with a 'send-email'
command for use in conjunction with 'format-patch'.

> +++ b/t/t0300-no-default-middleware.sh
> @@ -0,0 +1,15 @@
> +#!/bin/sh
> +. ./test-lib.sh
> +t_plan 2 "test the -N / --no-default-middleware option"
> +
> +t_begin "setup and start" && {
> +    unicorn_setup
> +    unicorn -N -D -c $unicorn_config fails-rack-lint.ru
> +    unicorn_wait_start

Existing integration tests use hard tabs for indentation,
I'll update your patch to match on my end (my personal preference is
hard tabs, especially for non-Ruby languages).

I'll push out the following unless you have objections:

--------------------------------8<----------------------------------
From: Micah Chalmer <micah@micahchalmer.net>
Subject: [PATCH] Make -N/--no-default-middleware option work

This fixes the -N (a.k.a. --no-defaut-middleware) option, which
was not working.  The problem was that Unicorn::Configurator::RACKUP
is cleared before the lambda returned by Unicorn.builder is run,
which means that checking whether the :no_default_middleware option
was set from the lambda could not detect anything.  This patch copies
it to a local variable that won't get clobbered, restoring the feature.

[ew: squashed test commit into the fix, whitespace fixes]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
---
 lib/unicorn.rb                   |  6 +++++-
 t/fails-rack-lint.ru             |  5 +++++
 t/t0300-no-default-middleware.sh | 15 +++++++++++++++
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 t/fails-rack-lint.ru
 create mode 100644 t/t0300-no-default-middleware.sh

diff --git a/lib/unicorn.rb b/lib/unicorn.rb
index f0ceffe..2535159 100644
--- a/lib/unicorn.rb
+++ b/lib/unicorn.rb
@@ -35,6 +35,10 @@ module Unicorn
     # allow Configurator to parse cli switches embedded in the ru file
     op = Unicorn::Configurator::RACKUP.merge!(:file => ru, :optparse => op)
 
+    # Op is going to get cleared before the returned lambda is called, so
+    # save this value so that it's still there when we need it:
+    no_default_middleware = op[:no_default_middleware]
+
     # always called after config file parsing, may be called after forking
     lambda do ||
       inner_app = case ru
@@ -49,7 +53,7 @@ module Unicorn
 
       pp({ :inner_app => inner_app }) if $DEBUG
 
-      return inner_app if op[:no_default_middleware]
+      return inner_app if no_default_middleware
 
       # return value, matches rackup defaults based on env
       # Unicorn does not support persistent connections, but Rainbows!
diff --git a/t/fails-rack-lint.ru b/t/fails-rack-lint.ru
new file mode 100644
index 0000000..82bfb5f
--- /dev/null
+++ b/t/fails-rack-lint.ru
@@ -0,0 +1,5 @@
+# This rack app returns an invalid status code, which will cause
+# Rack::Lint to throw an exception if it is present.  This
+# is used to check whether Rack::Lint is in the stack or not.
+
+run lambda {|env| return [42, {}, ["Rack::Lint wasn't there if you see this"]]}
diff --git a/t/t0300-no-default-middleware.sh b/t/t0300-no-default-middleware.sh
new file mode 100644
index 0000000..c017c16
--- /dev/null
+++ b/t/t0300-no-default-middleware.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+. ./test-lib.sh
+t_plan 2 "test the -N / --no-default-middleware option"
+
+t_begin "setup and start" && {
+	unicorn_setup
+	unicorn -N -D -c $unicorn_config fails-rack-lint.ru
+	unicorn_wait_start
+}
+
+t_begin "check exit status with Rack::Lint not present" && {
+	test 42 -eq "$(curl -sf -o/dev/null -w'%{http_code}' http://$listen/)"
+}
+
+t_done
-- 
Eric Wong

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