From 31eb1938832eb3a3a69c7246db151c96b589b877 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 12 Mar 2015 14:01:00 +0000
Subject: * test/lib/leakchecker.rb: Check environment variables.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49949 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/lib/leakchecker.rb | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

(limited to 'test')

diff --git a/test/lib/leakchecker.rb b/test/lib/leakchecker.rb
index a1093debcd..24f19dec56 100644
--- a/test/lib/leakchecker.rb
+++ b/test/lib/leakchecker.rb
@@ -3,13 +3,15 @@ class LeakChecker
     @fd_info = find_fds
     @tempfile_info = find_tempfiles
     @thread_info = find_threads
+    @env_info = find_env
   end
 
   def check(test_name)
     leaked1 = check_fd_leak(test_name)
     leaked2 = check_thread_leak(test_name)
     leaked3 = check_tempfile_leak(test_name)
-    GC.start if leaked1 || leaked2 || leaked3
+    leaked4 = check_env(test_name)
+    GC.start if leaked1 || leaked2 || leaked3 || leaked4
   end
 
   def find_fds
@@ -161,6 +163,35 @@ class LeakChecker
     return leaked
   end
 
+  def find_env
+    ENV.to_h
+  end
+
+  def check_env(test_name)
+    old_env = @env_info
+    new_env = ENV.to_h
+    return false if old_env == new_env
+    (old_env.keys | new_env.keys).sort.each {|k|
+      if old_env.has_key?(k)
+        if new_env.has_key?(k)
+          if old_env[k] != new_env[k]
+            puts "Environment variable changed: #{test_name} : #{k.inspect} changed : #{old_env[k].inspect} -> #{new_env[k].inspect}"
+          end
+        else
+          puts "Environment variable changed: #{test_name} : #{k.inspect} deleted"
+        end
+      else
+        if new_env.has_key?(k)
+          puts "Environment variable changed: #{test_name} : #{k.inspect} added"
+        else
+          flunk "unreachable"
+        end
+      end
+    }
+    @env_info = new_env
+    return true
+  end
+
   def puts(*a)
     MiniTest::Unit.output.puts(*a)
   end
-- 
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