1 files changed, 85 insertions, 0 deletions
diff --git a/spec/unit/parser/functions/extlookup_spec.rb b/spec/unit/parser/functions/extlookup_spec.rb
new file mode 100755
index 000000000..bf2880345
--- /dev/null
+++ b/spec/unit/parser/functions/extlookup_spec.rb
@@ -0,0 +1,85 @@
+#! /usr/bin/env ruby
+
+require File.dirname(__FILE__) + '/../../../spec_helper'
+require 'tempfile'
+
+describe "the extlookup function" do
+
+  before :each do
+    @scope = Puppet::Parser::Scope.new
+    
+    @scope.stubs(:environment).returns(Puppet::Node::Environment.new('production'))
+  end
+
+  it "should exist" do
+    Puppet::Parser::Functions.function("extlookup").should == "function_extlookup"
+  end
+
+  it "should raise a ParseError if there is less than 1 arguments" do
+    lambda { @scope.function_extlookup([]) }.should( raise_error(Puppet::ParseError))
+  end
+
+  it "should raise a ParseError if there is more than 3 arguments" do
+    lambda { @scope.function_extlookup(["foo", "bar", "baz", "gazonk"]) }.should( raise_error(Puppet::ParseError))
+  end
+
+  it "should return the default" do
+    result = @scope.function_extlookup([ "key", "default"])
+    result.should == "default"
+  end
+
+  it "should lookup the key in a supplied datafile" do
+    t = Tempfile.new('extlookup.csv') do
+      t.puts 'key,value'
+      t.puts 'nonkey,nonvalue'
+      t.close
+
+      result = @scope.function_extlookup([ "key", "default", t.path])
+      result.should == "value"
+    end
+  end
+
+  it "should return an array if the datafile contains more than two columns" do
+    t = Tempfile.new('extlookup.csv') do
+      t.puts 'key,value1,value2'
+      t.puts 'nonkey,nonvalue,nonvalue'
+      t.close
+
+      result = @scope.function_extlookup([ "key", "default", t.path])
+      result.should == ["value1", "value2"]
+    end
+  end
+
+  it "should raise an error if there's no matching key and no default" do
+    t = Tempfile.new('extlookup.csv') do
+      t.puts 'key,value'
+      t.puts 'nonkey,nonvalue'
+      t.close
+
+      result = @scope.function_extlookup([ "key", nil, t.path])
+      result.should == "value"
+    end
+  end
+
+  describe "should look in $extlookup_datadir for data files listed by $extlookup_precedence" do
+    before do 
+      @scope.stubs(:lookupvar).with('extlookup_datadir').returns("/tmp")
+      @scope.stubs(:lookupvar).with('extlookup_precedence').returns(["one","two"])
+      File.open("/tmp/one.csv","w"){|one| one.puts "key,value1" }
+      File.open("/tmp/two.csv","w") do |two|
+        two.puts "key,value2"
+        two.puts "key2,value_two"
+      end
+    end
+
+    it "when the key is in the first file" do
+      result = @scope.function_extlookup([ "key" ])
+      result.should == "value1"
+    end
+
+    it "when the key is in the second file" do
+      result = @scope.function_extlookup([ "key2" ])
+      result.should == "value_two"
+    end
+  end
+end