Add deprecation warnings to remaining validates

lib/puppet/parser/functions/validate_hash.rb

@@ -18,6 +18,8 @@ module Puppet::Parser::Functions
 
     ENDHEREDOC
 
+    function_deprecation([:puppet_3_type_check, 'This method is deprecated, please use the stdlib validate_legacy function, with Stdlib::Compat::Hash. There is further documentation for validate_legacy function in the README.'])
+
     unless args.length > 0 then
       raise Puppet::ParseError, ("validate_hash(): wrong number of arguments (#{args.length}; must be > 0)")
     end

lib/puppet/parser/functions/validate_slength.rb

@@ -21,6 +21,8 @@ module Puppet::Parser::Functions
 
     ENDHEREDOC
 
+    function_deprecation([:puppet_3_type_check, 'This method is deprecated, please use the stdlib validate_legacy function, with Stdlib::Compat::String[x]. There is further documentation for validate_legacy function in the README.'])
+
     raise Puppet::ParseError, "validate_slength(): Wrong number of arguments (#{args.length}; must be 2 or 3)" unless args.length == 2 or args.length == 3
 
     input, max_length, min_length = *args

spec/functions/validate_hash_spec.rb

@@ -5,6 +5,18 @@
     it { is_expected.not_to eq(nil) }
     it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError, /wrong number of arguments/i) }
 
+    describe 'check for deprecation warning' do
+      after(:context) do
+        ENV.delete('STDLIB_LOG_DEPRECATIONS')
+      end
+      # Checking for deprecation warning
+      it 'should display a single deprecation' do
+        ENV['STDLIB_LOG_DEPRECATIONS'] = "true"
+        scope.expects(:warning).with(includes('This method is deprecated'))
+        is_expected.to run.with_params({'key' => 'value'})
+      end
+    end
+
     describe 'valid inputs' do
       it { is_expected.to run.with_params({}) }
       it { is_expected.to run.with_params({'key' => 'value'}) }

spec/functions/validate_slength_spec.rb

@@ -1,6 +1,17 @@
 require 'spec_helper'
 
 describe 'validate_slength' do
+  after(:context) do
+    ENV.delete('STDLIB_LOG_DEPRECATIONS')
+  end
+
+  # Checking for deprecation warning
+  it 'should display a single deprecation' do
+    ENV['STDLIB_LOG_DEPRECATIONS'] = "true"
+    scope.expects(:warning).with(includes('This method is deprecated'))
+    is_expected.to run.with_params('1234567890', 10)
+  end
+
   describe 'signature validation' do
     it { is_expected.not_to eq(nil) }
     it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError, /wrong number of arguments/i) }