[API] Adds manual integration tests for free test suite

To have better control over tests and reimplement ones which need very
specific conditions so are skipped in the YAML test runner. In
particular health report is migrated to this new setup. These will go
away once we migrate to the new client yaml tests.

Author: picandocodigo

elasticsearch-api/Rakefile

@@ -67,9 +67,11 @@ namespace :test do
 
     desc 'Run Platinum Integration Specs'
     RSpec::Core::RakeTask.new(:integration) do |t|
-      exit(0) unless ENV['TEST_SUITE'] == 'platinum'
-
-      t.pattern = 'spec/platinum/integration/**/*_spec.rb'
+      t.pattern = if ENV['TEST_SUITE'] == 'platinum'
+                    'spec/platinum/integration/**/*_spec.rb'
+                  else
+                    'spec/free/integration/**/*_spec.rb'
+                  end
       t.ruby_opts = '-W0'
     end
   end

elasticsearch-api/spec/free/integration/health_spec.rb

@@ -0,0 +1,28 @@
+# Licensed to Elasticsearch B.V. under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Elasticsearch B.V. licenses this file to you under
+# the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# TODO: These tests won't be necessary once we migrate to the new YAML tests
+require_relative './spec_helper'
+
+describe "Health basic test" do
+  it 'performs the request' do
+    response = CLIENT.health_report
+    expect(response.status).to eq 200
+    expect(response['cluster_name']).not_to be_nil
+    expect(response.dig('indicators', 'master_is_stable', 'symptom')).to eq 'The cluster has a stable master node'
+    expect(response.dig('indicators', 'master_is_stable', 'status')).to eq 'green'
+  end
+end

elasticsearch-api/spec/free/integration/spec_helper.rb

@@ -0,0 +1,28 @@
+# Licensed to Elasticsearch B.V. under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Elasticsearch B.V. licenses this file to you under
+# the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+require 'elasticsearch'
+
+host = ENV['TEST_ES_SERVER'] || 'http://localhost:9200'
+raise URI::InvalidURIError unless host =~ /\A#{URI::DEFAULT_PARSER.make_regexp}\z/
+
+test_suite = ENV['TEST_SUITE'] || 'free'
+password = ENV['ELASTIC_PASSWORD'] || 'changeme'
+uri = URI.parse(host)
+transport_options = {}
+host = "http://elastic:#{password}@#{uri.host}:#{uri.port}".freeze
+
+CLIENT = Elasticsearch::Client.new(host: host, transport_options: transport_options)

elasticsearch-api/spec/rest_api/skipped_tests_free.yml

@@ -49,3 +49,6 @@
 -
   :file: 'indices.resolve_cluster/10_basic_resolve_cluster.yml'
   :description: 'Resolve cluster using alias and index that does not exist'
+-
+  :file: 'health/10_basic.yml' # Migrated to written manually
+  :description: 'cluster health basic test'