Add floor function implementation and unit tests

1 files changed, 39 insertions, 0 deletions

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 0000000..dbc8c77
--- /dev/null
+++ b/spec/unit/puppet/parser/functions/floor_spec.rb
@@ -0,0 +1,39 @@
+#! /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
+