From 1c8a4d9d62037323422173bf385e974ab57a978d Mon Sep 17 00:00:00 2001
From: Hunter Haugen <h.haugen@gmail.com>
Date: Mon, 18 Mar 2013 14:01:47 -0700
Subject: [PATCH] Implementation and spec tests for floor function

Function and spec test credit to @bkkrw / https://github.com/bkkrw/puppet-stdlib
---
 lib/puppet/parser/functions/floor.rb          | 24 ++++++++++++
 .../puppet/parser/functions/floor_spec.rb     | 38 +++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 lib/puppet/parser/functions/floor.rb
 create mode 100644 spec/unit/puppet/parser/functions/floor_spec.rb

diff --git a/lib/puppet/parser/functions/floor.rb b/lib/puppet/parser/functions/floor.rb
new file mode 100644
index 000000000..808531b8f
--- /dev/null
+++ b/lib/puppet/parser/functions/floor.rb
@@ -0,0 +1,24 @@
+#
+#  floor.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:floor, :type => :rvalue, :doc => <<-EOS
+    Returns the largest integer less or equal to the argument.
+    Takes a single numeric value as an argument.
+    EOS
+  ) do |arguments|
+
+    raise(Puppet::ParseError, "floor(): Wrong number of arguments " +
+          "given (#{arguments.size} for 1)") if arguments.size != 1
+
+    arg = arguments[0]
+
+    raise(Puppet::ParseError, "floor(): Wrong argument type " +
+          "given (#{arg.class} for Numeric)") if arg.is_a?(Numeric) == false
+
+    arg.floor
+  end
+end
+
+# vim: set ts=2 sw=2 et :
diff --git a/spec/unit/puppet/parser/functions/floor_spec.rb b/spec/unit/puppet/parser/functions/floor_spec.rb
new file mode 100644
index 000000000..396fc2ec2
--- /dev/null
+++ b/spec/unit/puppet/parser/functions/floor_spec.rb
@@ -0,0 +1,38 @@
+#! /usr/bin/env ruby -S rspec
+
+require 'spec_helper'
+
+describe "the floor function" do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  it "should exist" do
+    Puppet::Parser::Functions.function("floor").should == "function_floor"
+  end
+
+  it "should raise a ParseError if there is less than 1 argument" do
+    lambda { scope.function_floor([]) }.should( raise_error(Puppet::ParseError, /Wrong number of arguments/))
+  end
+
+  it "should should raise a ParseError if input isn't numeric (eg. String)" do
+    lambda { scope.function_floor(["foo"]) }.should( raise_error(Puppet::ParseError, /Wrong argument type/))
+  end
+
+  it "should should raise a ParseError if input isn't numeric (eg. Boolean)" do
+    lambda { scope.function_floor([true]) }.should( raise_error(Puppet::ParseError, /Wrong argument type/))
+  end
+
+  it "should return an integer when a numeric type is passed" do
+    result = scope.function_floor([12.4])
+    result.is_a?(Integer).should(eq(true))
+  end
+
+  it "should return the input when an integer is passed" do
+    result = scope.function_floor([7])
+    result.should(eq(7))
+  end
+
+  it "should return the largest integer less than or equal to the input" do
+    result = scope.function_floor([3.8])
+    result.should(eq(3))
+  end
+end