1 files changed, 31 insertions, 0 deletions
diff --git a/puppet/modules/stdlib/spec/functions/count_spec.rb b/puppet/modules/stdlib/spec/functions/count_spec.rb
new file mode 100755
index 00000000..f8f1d484
--- /dev/null
+++ b/puppet/modules/stdlib/spec/functions/count_spec.rb
@@ -0,0 +1,31 @@
+#! /usr/bin/env ruby -S rspec
+
+require 'spec_helper'
+
+describe "the count function" do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  it "should exist" do
+    expect(Puppet::Parser::Functions.function("count")).to eq("function_count")
+  end
+
+  it "should raise a ArgumentError if there is more than 2 arguments" do
+    expect { scope.function_count(['foo', 'bar', 'baz']) }.to( raise_error(ArgumentError))
+  end
+
+  it "should be able to count arrays" do
+    expect(scope.function_count([["1","2","3"]])).to(eq(3))
+  end
+
+  it "should be able to count matching elements in arrays" do
+    expect(scope.function_count([["1", "2", "2"], "2"])).to(eq(2))
+  end
+
+  it "should not count nil or empty strings" do
+    expect(scope.function_count([["foo","bar",nil,""]])).to(eq(2))
+  end
+
+  it 'does not count an undefined hash key or an out of bound array index (which are both :undef)' do
+    expect(scope.function_count([["foo",:undef,:undef]])).to eq(1)
+  end
+end