Integration test

test/gems/gems/bad_example-100/lib/bad_example/basic.rb

@@ -0,0 +1,2 @@
+foo = nil
+true if @foo

test/gems/gems/bad_example-100/lib/bad_example/eval_redefined.rb

@@ -0,0 +1,2 @@
+eval "def foo; end"
+def foo; end

test/gems/specifications/bad_example-100.gemspec

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+# -*- encoding: utf-8 -*-
+# stub: bad_example 100 ruby lib
+
+Gem::Specification.new do |s|
+ s.name = "bad_example"
+ s.version = "100"
+
+ s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+ s.require_paths = ["lib"]
+ s.authors = ["Semyon Perepelitsa"]
+ s.date = "2015-05-18"
+ s.email = "sema@sema.in"
+ s.homepage = "https://github.com/semaperepelitsa/ruby_warning_filter"
+ s.licenses = ["MIT"]
+ s.rubygems_version = "2.4.5"
+ s.summary = "***"
+
+ s.installed_by_version = "2.4.5" if s.respond_to? :installed_by_version
+end

test/integration_test.rb

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+require "minitest/autorun"
+require "tempfile"
+
+class IntegrationTest < Minitest::Test
+ GEM_PATH = File.expand_path("#{__dir__}/gems")
+ GEM_PREFIX = File.join(GEM_PATH, "gems/bad_example-100/lib/bad_example")
+
+ LIB = File.expand_path("#{__dir__}/../lib")
+ CODE = <<-RUBY.gsub("\n", "; ")
+$VERBOSE = true
+require "ruby_warning_filter"
+$stderr = RubyWarningFilter.new($stderr)
+RUBY
+
+ def test_custom
+ assert_equal "Custom warning\n",
+ ruby(CODE, 'warn "Custom warning"')
+ end
+
+ def test_internal
+ assert_equal "-e:2: warning: instance variable @foo not initialized\n",
+ ruby(CODE, 'true if @foo')
+ end
+
+ def test_external_non_filtered
+ assert_equal <<-END, ruby('require "bad_example/basic"')
+#{GEM_PREFIX}/basic.rb:1: warning: assigned but unused variable - foo
+#{GEM_PREFIX}/basic.rb:2: warning: instance variable @foo not initialized
+END
+ end
+
+ def test_external
+ assert_equal "", ruby(CODE, 'require "bad_example/basic"')
+ end
+
+ def test_eval_redefined_non_filtered
+ assert_equal <<-END, ruby('require "bad_example/eval_redefined"')
+#{GEM_PREFIX}/eval_redefined.rb:2: warning: method redefined; discarding old foo
+(eval):1: warning: previous definition of foo was here
+END
+ end
+
+ def test_eval_redefined
+ assert_equal "", ruby(CODE, 'require "bad_example/eval_redefined"')
+ end
+
+ def test_with_backtrace
+ skip "Pending"
+ end
+
+ def ruby(*lines)
+ IO.pipe do |rd, wr|
+ success = system({ "GEM_PATH" => GEM_PATH }, "ruby", "-w", "-I", LIB, "-e", lines.join("\n"), :err => wr, unsetenv_others: true)
+ wr.close
+ out = rd.read
+ if success
+ out
+ else
+ raise out
+ end
+ end
+ end
+end