[ruby/rubygems] Added assertion for Windows and nmake

ruby/rubygems@be5c4e27d9

Author: hsbt

test/rubygems/test_gem_commands_install_command.rb

@@ -1609,7 +1609,11 @@ def test_pass_down_the_job_option_to_make
     end
 
     gem_make_out = File.read(File.join(gemspec.extension_dir, "gem_make.out"))
-    assert_includes(gem_make_out, "make -j4")
+    if vc_windows? && nmake_found?
+      refute_includes(gem_make_out, "-j4")
+    else
+      assert_includes(gem_make_out, "make -j4")
+    end
   end
 
   def test_execute_bindir_with_nonexistent_parent_dirs

test/rubygems/test_gem_commands_update_command.rb

@@ -721,7 +721,11 @@ def test_pass_down_the_job_option_to_make
     end
 
     gem_make_out = File.read(File.join(gemspec.extension_dir, "gem_make.out"))
-    assert_includes(gem_make_out, "make -j2")
+    if vc_windows? && nmake_found?
+      refute_includes(gem_make_out, "-j2")
+    else
+      assert_includes(gem_make_out, "make -j2")
+    end
   end
 
   def test_handle_options_system