* test/lib/test/unit.rb: added test files with _test suffix for json

upstream.
* test/json: merge original test files from json upstream.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/json/json_fixtures_test.rb

@@ -0,0 +1,32 @@
+#frozen_string_literal: false
+require 'test_helper'
+
+class JSONFixturesTest < Test::Unit::TestCase
+  def setup
+    fixtures = File.join(File.dirname(__FILE__), 'fixtures/{fail,pass}.json')
+    passed, failed = Dir[fixtures].partition { |f| f['pass'] }
+    @passed = passed.inject([]) { |a, f| a << [ f, File.read(f) ] }.sort
+    @failed = failed.inject([]) { |a, f| a << [ f, File.read(f) ] }.sort
+  end
+
+  def test_passing
+    for name, source in @passed
+      begin
+        assert JSON.parse(source),
+          "Did not pass for fixture '#{name}': #{source.inspect}"
+      rescue => e
+        warn "\nCaught #{e.class}(#{e}) for fixture '#{name}': #{source.inspect}\n#{e.backtrace * "\n"}"
+        raise e
+      end
+    end
+  end
+
+  def test_failing
+    for name, source in @failed
+      assert_raise(JSON::ParserError, JSON::NestingError,
+        "Did not fail for fixture '#{name}': #{source.inspect}") do
+        JSON.parse(source)
+      end
+    end
+  end
+end