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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2008 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require File.expand_path(File.join(File.dirname(__FILE__), "..", "..", "spec_helper"))
class TinyTemplateClass; include Chef::Mixin::Template; end
require 'cgi'
describe Chef::Mixin::Template, "render_template" do
before :each do
@template = TinyTemplateClass.new
end
it "should render the template evaluated in the given context" do
@template.render_template("<%= @foo %>", { :foo => "bar" }).open.read.should == "bar"
end
it "should provide a node method to access @node" do
@template.render_template("<%= node %>",{:node => "tehShizzle"}).open.read.should == "tehShizzle"
end
it "should return a file" do
f = @template.render_template("abcdef", {})
@template.render_template("abcdef", {}).should be_kind_of(Tempfile)
end
describe "when an exception is raised in the template" do
def do_raise
@context = {:chef => "cool"}
@template.render_template("foo\nbar\nbaz\n<%= this_is_not_defined %>\nquin\nqunx\ndunno", @context)
end
it "should catch and re-raise the exception as a TemplateError" do
lambda { do_raise }.should raise_error(Chef::Mixin::Template::TemplateError)
end
it "should raise an error if an attempt is made to access node but it is nil" do
lambda {@template.render_template("<%= node %>",{})}.should raise_error(Chef::Mixin::Template::TemplateError)
end
describe "the raised TemplateError" do
before :each do
begin
do_raise
rescue Chef::Mixin::Template::TemplateError => e
@exception = e
end
end
it "should have the original exception" do
@exception.original_exception.should be
@exception.original_exception.message.should =~ /undefined local variable or method `this_is_not_defined'/
end
it "should determine the line number of the exception" do
@exception.line_number.should == 4
end
it "should provide a source listing of the template around the exception" do
@exception.source_listing.should == " 2: bar\n 3: baz\n 4: <%= this_is_not_defined %>\n 5: quin\n 6: qunx"
end
it "should provide the evaluation context of the template" do
@exception.context.should == @context
end
it "should defer the message to the original exception" do
@exception.message.should =~ /undefined local variable or method `this_is_not_defined'/
end
it "should provide a nice source location" do
@exception.source_location.should == "on line #4"
end
it "should create a pretty output for the terminal" do
@exception.to_s.should =~ /Chef::Mixin::Template::TemplateError/
@exception.to_s.should =~ /undefined local variable or method `this_is_not_defined'/
@exception.to_s.should include(" 2: bar\n 3: baz\n 4: <%= this_is_not_defined %>\n 5: quin\n 6: qunx")
@exception.to_s.should include(@exception.original_exception.backtrace.first)
end
end
end
end
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