Convert tests to use plain rspec-puppet

Tests in the new style produces the following documentation output:

abs
  should not eq nil
  should run abs() and raise an Puppet::ParseError
  should run abs(-34) and return 34
  should run abs("-34") and return 34
  should run abs(34) and return 34
  should run abs("34") and return 34

1 files changed, 19 insertions, 45 deletions

diff --git a/spec/functions/validate_bool_spec.rb b/spec/functions/validate_bool_spec.rb
index a352d3b..d9cdf57 100755
--- a/spec/functions/validate_bool_spec.rb
+++ b/spec/functions/validate_bool_spec.rb
@@ -1,51 +1,25 @@
-#! /usr/bin/env ruby -S rspec
-
 require 'spec_helper'
 
-describe Puppet::Parser::Functions.function(:validate_bool) do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
-  describe 'when calling validate_bool from puppet' do
-
-    %w{ true false }.each do |the_string|
-
-      it "should not compile when #{the_string} is a string" do
-        Puppet[:code] = "validate_bool('#{the_string}')"
-        expect { scope.compiler.compile }.to raise_error(Puppet::ParseError, /is not a boolean/)
-      end
-
-      it "should compile when #{the_string} is a bare word" do
-        Puppet[:code] = "validate_bool(#{the_string})"
-        scope.compiler.compile
-      end
-
-    end
-
-    it "should not compile when an arbitrary string is passed" do
-      Puppet[:code] = 'validate_bool("jeff and dan are awesome")'
-      expect { scope.compiler.compile }.to raise_error(Puppet::ParseError, /is not a boolean/)
-    end
-
-    it "should not compile when no arguments are passed" do
-      Puppet[:code] = 'validate_bool()'
-      expect { scope.compiler.compile }.to raise_error(Puppet::ParseError, /wrong number of arguments/)
-    end
+describe 'validate_bool' do
+  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) }
+  end
 
-    it "should compile when multiple boolean arguments are passed" do
-      Puppet[:code] = <<-'ENDofPUPPETcode'
-        $foo = true
-        $bar = false
-        validate_bool($foo, $bar, true, false)
-      ENDofPUPPETcode
-      scope.compiler.compile
-    end
+  describe 'acceptable values' do
+    it { is_expected.to run.with_params(true) }
+    it { is_expected.to run.with_params(false) }
+    it { is_expected.to run.with_params(true, false, false, true) }
+  end
 
-    it "should compile when multiple boolean arguments are passed" do
-      Puppet[:code] = <<-'ENDofPUPPETcode'
-        $foo = true
-        $bar = false
-        validate_bool($foo, $bar, true, false, 'jeff')
-      ENDofPUPPETcode
-      expect { scope.compiler.compile }.to raise_error(Puppet::ParseError, /is not a boolean/)
-    end
+  describe 'validation failures' do
+    it { is_expected.to run.with_params('one').and_raise_error(Puppet::ParseError, /is not a boolean/) }
+    it { is_expected.to run.with_params(true, 'one').and_raise_error(Puppet::ParseError, /is not a boolean/) }
+    it { is_expected.to run.with_params('one', false).and_raise_error(Puppet::ParseError, /is not a boolean/) }
+    it { is_expected.to run.with_params("true").and_raise_error(Puppet::ParseError, /is not a boolean/) }
+    it { is_expected.to run.with_params("false").and_raise_error(Puppet::ParseError, /is not a boolean/) }
+    it { is_expected.to run.with_params(true, "false").and_raise_error(Puppet::ParseError, /is not a boolean/) }
+    it { is_expected.to run.with_params("true", false).and_raise_error(Puppet::ParseError, /is not a boolean/) }
+    it { is_expected.to run.with_params("true", false, false, false, false, false).and_raise_error(Puppet::ParseError, /is not a boolean/) }
   end
 end