Fix #1741 - refactor TemplateWrapper, test for template function

1 files changed, 62 insertions, 0 deletions

diff --git a/spec/unit/parser/functions/template.rb b/spec/unit/parser/functions/template.rb
new file mode 100644
index 000000000..8fc64d0c3
--- /dev/null
+++ b/spec/unit/parser/functions/template.rb
@@ -0,0 +1,62 @@
+#!/usr/bin/env ruby
+
+require File.dirname(__FILE__) + '/../../../spec_helper'
+
+describe "the template function" do
+
+    before :each do
+        @scope = Puppet::Parser::Scope.new()
+    end
+
+    it "should exist" do
+        Puppet::Parser::Functions.function("template").should == "function_template"
+    end
+
+    it "should create a TemplateWrapper when called" do
+        tw = stub_everything 'template_wrapper'
+
+        Puppet::Parser::TemplateWrapper.expects(:new).returns(tw)
+
+        @scope.function_template("test")
+    end
+
+    it "should give the template filename to the TemplateWrapper" do
+        tw = stub_everything 'template_wrapper'
+        Puppet::Parser::TemplateWrapper.stubs(:new).returns(tw)
+
+        tw.expects(:file=).with("test")
+
+        @scope.function_template("test")
+    end
+
+    it "should return what TemplateWrapper.result returns" do
+        tw = stub_everything 'template_wrapper'
+        Puppet::Parser::TemplateWrapper.stubs(:new).returns(tw)
+        tw.stubs(:file=).with("test")
+
+        tw.expects(:result).returns("template contents evaluated")
+
+        @scope.function_template("test").should == "template contents evaluated"
+    end
+
+    it "should concatenate template wrapper outputs for multiple templates" do
+        tw1 = stub_everything "template_wrapper1"
+        tw2 = stub_everything "template_wrapper2"
+        Puppet::Parser::TemplateWrapper.stubs(:new).returns(tw1,tw2)
+        tw1.stubs(:file=).with("1")
+        tw2.stubs(:file=).with("2")
+        tw1.stubs(:result).returns("result1")
+        tw2.stubs(:result).returns("result2")
+
+        @scope.function_template(["1","2"]).should == "result1result2"
+    end
+
+    it "should raise an error if the template raises an error" do
+        tw = stub_everything 'template_wrapper'
+        Puppet::Parser::TemplateWrapper.stubs(:new).returns(tw)
+        tw.stubs(:result).raises
+
+        lambda { @scope.function_template("1") }.should raise_error(Puppet::ParseError)
+    end
+
+end
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