Merge pull request #407 from adamcrews/ceiling_function

Add a ceiling function to complement the floor function.

2 files changed, 78 insertions, 0 deletions

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
+