added in list semver matcher

Author: Bilal Al

lib/splitclient-rb.rb

@@ -95,6 +95,7 @@
 require 'splitclient-rb/engine/matchers/greater_than_or_equal_to_semver_matcher'
 require 'splitclient-rb/engine/matchers/less_than_or_equal_to_semver_matcher'
 require 'splitclient-rb/engine/matchers/between_semver_matcher'
+require 'splitclient-rb/engine/matchers/in_list_semver_matcher'
 require 'splitclient-rb/engine/evaluator/splitter'
 require 'splitclient-rb/engine/impressions/noop_unique_keys_tracker'
 require 'splitclient-rb/engine/impressions/unique_keys_tracker'

lib/splitclient-rb/engine/matchers/in_list_semver_matcher.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module SplitIoClient
+  class InListSemverMatcher < Matcher
+    MATCHER_TYPE = 'IN_LIST_SEMVER'
+
+    attr_reader :attribute
+
+    def initialize(attribute, list_value, logger, validator)
+      super(logger)
+      @validator = validator
+      @attribute = attribute
+      @semver_list = list_value.map { |item| SplitIoClient::Semver.new(item)}
+      @logger = logger
+    end
+
+    def match?(args)
+      @logger.log_if_debug('[InListSemverMatcher] evaluating value and attributes.')
+      return false unless @validator.valid_matcher_arguments(args)
+
+      value_to_match = args[:attributes][@attribute.to_sym]
+      unless value_to_match.is_a?(String)
+        @logger.log_if_debug('whitelistMatcherData is required for IN_LIST_SEMVER matcher type')
+        return false
+      end
+      matches = (@semver_list.map{ |item|  item.compare(SplitIoClient::Semver.new(value_to_match)) }).any? { |item| item == 0 }
+      @logger.log_if_debug("[InListSemverMatcher] #{value_to_match} matches -> #{matches}")
+      matches
+    end
+  end
+end

lib/splitclient-rb/engine/parser/condition.rb

@@ -222,6 +222,14 @@ def matcher_between_semver(params)
       )
     end
 
+    def matcher_in_list_semver(params)
+      InListSemverMatcher.new(
+        params[:matcher][:keySelector][:attribute],
+        params[:matcher][:whitelistMatcherData][:whitelist],
+        @config.split_logger, @config.split_validator
+      )
+    end
+
     #
     # @return [object] the negate value for this condition
     def negate

spec/engine/matchers/matches_in_list_semver_matcher_spec.rb

@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe SplitIoClient::InListSemverMatcher do
+  let(:raw) { {
+    'negate': false,
+    'matcherType': 'INLIST_SEMVER',
+    'whitelistMatcherData': {"whitelist": ["2.1.8", "2.1.11"]}
+} }
+  let(:config) { SplitIoClient::SplitConfig.new }
+
+  it 'initilized params' do
+    matcher = described_class.new("version", raw[:whitelistMatcherData][:whitelist], config.split_logger, config.split_validator)
+    expect(matcher.attribute).to eq("version")
+    semver_list = matcher.instance_variable_get(:@semver_list)
+    expect(semver_list[0].instance_variable_get(:@old_version)).to eq("2.1.8")
+    expect(semver_list[1].instance_variable_get(:@old_version)).to eq("2.1.11")
+  end
+
+  it 'matches' do
+    matcher = described_class.new("version", raw[:whitelistMatcherData][:whitelist], config.split_logger, config.split_validator)
+    expect(matcher.match?(:attributes=>{"version": "2.1.8+rc"})).to eq(true)
+    expect(matcher.match?(:attributes=>{"version": "2.1.11"})).to eq(true)
+  end
+
+  it 'does not match' do
+    matcher = described_class.new("version", raw[:whitelistMatcherData][:whitelist], config.split_logger, config.split_validator)
+    expect(matcher.match?(:attributes=>{"version": "2.1.7"})).to eq(false)
+    expect(matcher.match?(:attributes=>{"version": "2.1.11-rc12"})).to eq(false)
+    expect(matcher.match?(:attributes=>{"version": "2.1.8-rc1"})).to eq(false)
+  end
+
+  it 'invalid attribute' do
+    matcher = described_class.new("version", raw[:whitelistMatcherData][:whitelist], config.split_logger, config.split_validator)
+    expect(matcher.match?(:attributes=>{"version": 2.1})).to eq(false)
+    expect(matcher.match?(:attributes=>{"version": nil})).to eq(false)
+  end
+
+end