113 lines
3.5 KiB
Ruby
113 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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require "abstract_unit"
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require "env_helpers"
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class Minitest::RailsPluginTest < ActiveSupport::TestCase
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include EnvHelpers
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setup do
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@output = StringIO.new("".encode("UTF-8"))
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end
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test "replaces backtrace filter with one that silences gem lines" do
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backtrace = ["lib/my_code.rb", backtrace_gem_line("rails")]
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with_plugin do
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assert_equal backtrace.take(1), Minitest.backtrace_filter.filter(backtrace)
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end
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end
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test "replacement backtrace filter never returns an empty backtrace" do
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backtrace = [backtrace_gem_line("rails")]
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with_plugin do
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assert_equal backtrace, Minitest.backtrace_filter.filter(backtrace)
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end
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end
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test "replacement backtrace filter silences Minitest lines when all lines are gem lines" do
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backtrace = [backtrace_gem_line("rails"), backtrace_gem_line("minitest")]
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with_plugin do
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assert_equal backtrace.take(1), Minitest.backtrace_filter.filter(backtrace)
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end
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end
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test "does not replace backtrace filter when using --backtrace option" do
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backtrace_filter = baseline_backtrace_filter
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with_plugin("--backtrace", initial_backtrace_filter: backtrace_filter) do
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assert_same backtrace_filter, Minitest.backtrace_filter
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end
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with_plugin("-b", initial_backtrace_filter: backtrace_filter) do
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assert_same backtrace_filter, Minitest.backtrace_filter
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end
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end
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test "does not replace backtrace filter when BACKTRACE environment variable is set" do
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backtrace_filter = baseline_backtrace_filter
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switch_env "BACKTRACE", "true" do
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with_plugin(initial_backtrace_filter: backtrace_filter) do
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assert_same backtrace_filter, Minitest.backtrace_filter
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end
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end
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end
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test "replaces Minitest::SummaryReporter reporter" do
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with_plugin do
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assert_empty Minitest.reporter.reporters.select { |reporter| reporter.instance_of? Minitest::SummaryReporter }
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assert_not_empty Minitest.reporter.reporters.grep(Minitest::SuppressedSummaryReporter)
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end
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end
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test "replaces Minitest::ProgressReporter reporter" do
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with_plugin do
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assert_empty Minitest.reporter.reporters.grep(Minitest::ProgressReporter)
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assert_not_empty Minitest.reporter.reporters.grep(::Rails::TestUnitReporter)
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end
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end
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test "keeps non-default reporters" do
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custom_reporter = Minitest::Reporter.new(@output)
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with_plugin(initial_reporters: [custom_reporter]) do
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assert_includes Minitest.reporter.reporters, custom_reporter
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end
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end
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test "does not add reporters when not replacing reporters" do
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with_plugin(initial_reporters: []) do
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assert_empty Minitest.reporter.reporters
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end
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end
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private
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def baseline_backtrace_filter
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Minitest::BacktraceFilter.new
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end
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def baseline_reporters
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[Minitest::SummaryReporter.new(@output), Minitest::ProgressReporter.new(@output)]
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end
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def with_plugin(*args, initial_backtrace_filter: baseline_backtrace_filter, initial_reporters: baseline_reporters)
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original_backtrace_filter, Minitest.backtrace_filter = Minitest.backtrace_filter, initial_backtrace_filter
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original_reporter, Minitest.reporter = Minitest.reporter, Minitest::CompositeReporter.new(*initial_reporters)
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options = Minitest.process_args(args)
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Minitest.plugin_rails_init(options)
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yield
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ensure
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Minitest.backtrace_filter = original_backtrace_filter
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Minitest.reporter = original_reporter
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end
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def backtrace_gem_line(gem_name)
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caller.grep(%r"/lib/minitest\.rb:").first.gsub("minitest", gem_name)
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end
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end
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