Fix non-deterministic test module load failures

test/modules/post/test/extapi.rb

@@ -1,7 +1,7 @@
 require 'rex'
 
 lib = File.join(Msf::Config.install_root, "test", "lib")
-$:.push(lib) unless $:.include?(lib)
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 class MetasploitModule < Msf::Post

test/modules/post/test/file.rb

@@ -1,4 +1,4 @@
-lib = File.join(Msf::Config.install_root, 'test', 'lib')
+lib = File.join(Msf::Config.install_root, "test", "lib")
 $LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 

test/modules/post/test/get_env.rb

@@ -1,4 +1,5 @@
 lib = File.join(Msf::Config.install_root, "test", "lib")
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 # load 'test/lib/module_test.rb'

test/modules/post/test/meterpreter.rb

@@ -2,7 +2,7 @@ require 'rex/post/meterpreter/extensions/stdapi/command_ids'
 require 'rex'
 
 lib = File.join(Msf::Config.install_root, "test", "lib")
-$:.push(lib) unless $:.include?(lib)
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 class MetasploitModule < Msf::Post

test/modules/post/test/railgun.rb

@@ -1,4 +1,5 @@
 lib = File.join(Msf::Config.install_root, "test", "lib")
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 class MetasploitModule < Msf::Post

test/modules/post/test/railgun_reverse_lookups.rb

@@ -6,7 +6,7 @@
 require 'rex'
 
 lib = File.join(Msf::Config.install_root, "test", "lib")
-$:.push(lib) unless $:.include?(lib)
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 class MetasploitModule < Msf::Post

test/modules/post/test/registry.rb

@@ -6,7 +6,7 @@
 require 'rex'
 
 lib = File.join(Msf::Config.install_root, "test", "lib")
-$:.push(lib) unless $:.include?(lib)
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 class MetasploitModule < Msf::Post

test/modules/post/test/search.rb

@@ -2,7 +2,7 @@ require 'rex/post/meterpreter/extensions/stdapi/command_ids'
 require 'rex'
 
 lib = File.join(Msf::Config.install_root, "test", "lib")
-$:.push(lib) unless $:.include?(lib)
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 class MetasploitModule < Msf::Post

test/modules/post/test/services.rb

@@ -5,7 +5,7 @@
 require 'rex'
 
 lib = File.join(Msf::Config.install_root, "test", "lib")
-$:.push(lib) unless $:.include?(lib)
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 class MetasploitModule < Msf::Post

test/modules/post/test/unix.rb

@@ -1,5 +1,5 @@
 lib = File.join(Msf::Config.install_root, "test", "lib")
-$:.push(lib) unless $:.include?(lib)
+$LOAD_PATH.push(lib) unless $LOAD_PATH.include?(lib)
 require 'module_test'
 
 # load 'test/lib/module_test.rb'