feat: disable recording for tests tagged :noappmap

Check to see if Minitest::Tagz has been used to add the tag :noappmap to
a test method. If so, don't generate an AppMap for the test.

BREAKING CHANGE: bump to version 1.0.0

Author: apotterri

lib/appmap/minitest.rb

@@ -85,14 +85,24 @@ def begin_test(test, name)
 
         @recording_count += 1
 
-        @recordings_by_test[test.object_id] = Recording.new(test, name)
+        recording = if defined?(::Minitest::Tagz) && disabled_by_tag(test, name)
+            :disabled
+          else
+            Recording.new(test, name)
+          end
+        @recordings_by_test[test.object_id] = recording
+      end
+
+      def disabled_by_tag(test, name)
+        tags = ::Minitest::Tagz.tag_map[::Minitest::Tagz.serialize(test.class, name)]
+        tags && tags.include?("noappmap")
       end
 
       def end_test(test, exception:)
         recording = @recordings_by_test.delete(test.object_id)
         return warn "No recording found for #{test}" unless recording
 
-        recording.finish test.failures || [], exception
+        recording.finish test.failures || [], exception unless recording == :disabled
       end
 
       def config

test/fixtures/minitest_recorder/Gemfile

@@ -3,3 +3,5 @@ source 'https://rubygems.org'
 gem 'appmap', git: 'applandinc/appmap-ruby', branch: `git rev-parse --abbrev-ref HEAD`.strip
 gem 'byebug'
 gem 'minitest'
+
+gem 'minitest-tagz'

test/fixtures/minitest_recorder/test/hello_tagged_test.rb

@@ -0,0 +1,19 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'test_helper'
+
+require 'minitest/autorun'
+require 'appmap/minitest'
+require 'hello'
+
+class HelloTaggedTest < ::Minitest::Test
+  tag :noappmap
+  def test_tagged
+    assert_equal 'Hello!', Hello.new.say_hello
+  end
+
+  def test_untagged
+    assert_equal 'Hello!', Hello.new.say_hello
+  end
+end

test/fixtures/minitest_recorder/test/test_helper.rb

@@ -0,0 +1,2 @@
+require 'minitest/tagz'
+Minitest::Tagz.choose_tags(*ENV['TAGS'].split(',')) if ENV['TAGS']

test/minitest_test.rb

@@ -51,4 +51,16 @@ def test_failed
       assert_equal test_failure['location'], 'test/hello_failed_test.rb:10'
     end
   end
+
+  def test_noappmap_tag
+    perform_minitest_test 'hello_tagged' do
+      # Sanity check, make sure the test file was executed
+      appmap_file = 'tmp/appmap/minitest/Hello_tagged_untagged.appmap.json'
+      assert File.file?(appmap_file), 'appmap output file does not exist'
+
+      # The test tagged with :noappmap should not have generated an AppMap
+      appmap_file = 'tmp/appmap/minitest/Hello_tagged_tagged.appmap.json'
+      assert !File.file?(appmap_file), 'test tagged :noappmap generated an AppMap'
+    end
+  end
 end