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-rw-r--r--README.markdown3
-rw-r--r--lib/puppet/parser/functions/ceiling.rb25
-rwxr-xr-xspec/acceptance/ceiling_spec.rb39
-rwxr-xr-xspec/functions/ceiling_spec.rb39
4 files changed, 106 insertions, 0 deletions
diff --git a/README.markdown b/README.markdown
index 0ea0c4e..ac0cae6 100644
--- a/README.markdown
+++ b/README.markdown
@@ -122,6 +122,9 @@ string. *Type*: rvalue
* `capitalize`: Capitalizes the first letter of a string or array of strings.
Requires either a single string or an array as an input. *Type*: rvalue
+* `ceiling`: Returns the smallest integer greater than or equal to the argument.
+Takes a single numeric value as an argument. *Type*: rvalue
+
* `chomp`: Removes the record separator from the end of a string or an array of
strings; for example, 'hello\n' becomes 'hello'. Requires a single string or array as an input. *Type*: rvalue
diff --git a/lib/puppet/parser/functions/ceiling.rb b/lib/puppet/parser/functions/ceiling.rb
new file mode 100644
index 0000000..5f3b10b
--- /dev/null
+++ b/lib/puppet/parser/functions/ceiling.rb
@@ -0,0 +1,25 @@
+module Puppet::Parser::Functions
+ newfunction(:ceiling, :type => :rvalue, :doc => <<-EOS
+ Returns the smallest integer greater or equal to the argument.
+ Takes a single numeric value as an argument.
+ EOS
+ ) do |arguments|
+
+ raise(Puppet::ParseError, "ceiling(): Wrong number of arguments " +
+ "given (#{arguments.size} for 1)") if arguments.size != 1
+
+ begin
+ arg = Float(arguments[0])
+ rescue TypeError, ArgumentError => e
+ raise(Puppet::ParseError, "ceiling(): Wrong argument type " +
+ "given (#{arguments[0]} for Numeric)")
+ end
+
+ raise(Puppet::ParseError, "ceiling(): Wrong argument type " +
+ "given (#{arg.class} for Numeric)") if arg.is_a?(Numeric) == false
+
+ arg.ceil
+ end
+end
+
+# vim: set ts=2 sw=2 et :
diff --git a/spec/acceptance/ceiling_spec.rb b/spec/acceptance/ceiling_spec.rb
new file mode 100755
index 0000000..557986e
--- /dev/null
+++ b/spec/acceptance/ceiling_spec.rb
@@ -0,0 +1,39 @@
+#! /usr/bin/env ruby -S rspec
+require 'spec_helper_acceptance'
+
+describe 'ceiling function', :unless => UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) do
+ describe 'success' do
+ it 'ceilings floats' do
+ pp = <<-EOS
+ $a = 12.8
+ $b = 13
+ $o = ceiling($a)
+ if $o == $b {
+ notify { 'output correct': }
+ }
+ EOS
+
+ apply_manifest(pp, :catch_failures => true) do |r|
+ expect(r.stdout).to match(/Notice: output correct/)
+ end
+ end
+ it 'ceilings integers' do
+ pp = <<-EOS
+ $a = 7
+ $b = 7
+ $o = ceiling($a)
+ if $o == $b {
+ notify { 'output correct': }
+ }
+ EOS
+
+ apply_manifest(pp, :catch_failures => true) do |r|
+ expect(r.stdout).to match(/Notice: output correct/)
+ end
+ end
+ end
+ describe 'failure' do
+ it 'handles improper argument counts'
+ it 'handles non-numbers'
+ end
+end
diff --git a/spec/functions/ceiling_spec.rb b/spec/functions/ceiling_spec.rb
new file mode 100755
index 0000000..814aa7c
--- /dev/null
+++ b/spec/functions/ceiling_spec.rb
@@ -0,0 +1,39 @@
+#! /usr/bin/env ruby -S rspec
+
+require 'spec_helper'
+
+describe "the ceiling function" do
+ let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+ it "should exist" do
+ expect(Puppet::Parser::Functions.function("ceiling")).to eq("function_ceiling")
+ end
+
+ it "should raise a ParseError if there is less than 1 argument" do
+ expect { scope.function_ceiling([]) }.to( raise_error(Puppet::ParseError, /Wrong number of arguments/))
+ end
+
+ it "should should raise a ParseError if input isn't numeric (eg. String)" do
+ expect { scope.function_ceiling(["foo"]) }.to( raise_error(Puppet::ParseError, /Wrong argument type/))
+ end
+
+ it "should should raise a ParseError if input isn't numeric (eg. Boolean)" do
+ expect { scope.function_ceiling([true]) }.to( raise_error(Puppet::ParseError, /Wrong argument type/))
+ end
+
+ it "should return an integer when a numeric type is passed" do
+ result = scope.function_ceiling([12.4])
+ expect(result.is_a?(Integer)).to(eq(true))
+ end
+
+ it "should return the input when an integer is passed" do
+ result = scope.function_ceiling([7])
+ expect(result).to(eq(7))
+ end
+
+ it "should return the smallest integer greater than or equal to the input" do
+ result = scope.function_ceiling([3.8])
+ expect(result).to(eq(4))
+ end
+end
+