1 files changed, 25 insertions, 0 deletions
diff --git a/puppet/modules/stdlib/spec/functions/abs_spec.rb b/puppet/modules/stdlib/spec/functions/abs_spec.rb
new file mode 100755
index 00000000..3c25ce28
--- /dev/null
+++ b/puppet/modules/stdlib/spec/functions/abs_spec.rb
@@ -0,0 +1,25 @@
+#! /usr/bin/env ruby -S rspec
+
+require 'spec_helper'
+
+describe "the abs function" do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  it "should exist" do
+    expect(Puppet::Parser::Functions.function("abs")).to eq("function_abs")
+  end
+
+  it "should raise a ParseError if there is less than 1 arguments" do
+    expect { scope.function_abs([]) }.to( raise_error(Puppet::ParseError))
+  end
+
+  it "should convert a negative number into a positive" do
+    result = scope.function_abs(["-34"])
+    expect(result).to(eq(34))
+  end
+
+  it "should do nothing with a positive number" do
+    result = scope.function_abs(["5678"])
+    expect(result).to(eq(5678))
+  end
+end