I have this condition in my recipe:
install_action = (::Win32::Service.exists?(windows_service['name']) ? :configure : :create)
and a ChefSpec for that in spec file:
#1: not working
allow_any_instance_of(Win32::Service)
.to receive(:exists?)
.with(windows_service[:name])
.and_return(true)
#2: also not working
stub_command("::Win32::Service.exists?(#{windows_service[:name]})").and_return(true)
Could you please help to find out what have I missed in the ChefSpec test that is not working and mocking the return value.
Thanks
This should work:
allow(::Win32::Service).to receive(:exists?).with(windows_service[:name]).and_return(true)
Point is you stub a class method exists?, and not an instance method. That's why allow_any_instance_of does not work. And stub_command is actually for shell commands like stub_command('cat file | grep "hello"')
Related
I am trying to increment the value and use in another resource dynamically in recipe but still failing to do that.
Chef::Log.info("I am in #{cookbook_name}::#{recipe_name} and current disk count #{node[:oracle][:asm][:test]}")
bash "beforeTest" do
code lazy{ echo #{node[:oracle][:asm][:test]} }
end
ruby_block "test current disk count" do
block do
node.set[:oracle][:asm][:test] = "#{node[:oracle][:asm][:test]}".to_i+1
end
end
bash "test" do
code lazy{ echo #{node[:oracle][:asm][:test]} }
end
However I'm still getting the error bellow:
NoMethodError ------------- undefined method echo' for Chef::Resource::Bash
Cookbook Trace: ---------------
/var/chef/cache/cookbooks/Oracle11G/recipes/testSplit.rb:3:in block (2 levels) in from_file'
Resource Declaration: ---------------------
# In /var/chef/cache/cookbooks/Oracle11G/recipes/testSplit.rb
1: bash "beforeTest" do
2: code lazy{
3: echo "#{node[:oracle][:asm][:test]}"
4: }
5: end
Please can you help how lazy should be used in bash? If not lazy is there any other option?
bash "beforeTest" do
code lazy { "echo #{node[:oracle][:asm][:test]}" }
end
You should quote the command for the interpolation to work; if not, ruby would search for an echo command, which is unknown in ruby context (thus the error you get in log).
Warning: lazy has to be for the whole resource attribute; something like this WON'T work:
bash "beforeTest" do
code "echo node asm test is: #{lazy { node[:oracle][:asm][:test]} }"
end
The lazy evaluation takes a block of ruby code, as decribed here
You may have a better result with the log resource like this:
log "print before" do
message lazy { "node asm test is #{node[:oracle][:asm][:test]}" }
end
I've been drilling my head solving this problem until I came up with lambda expressions. But yet just using lambda didn't help me at all. So I thought of using both lambda and lazy evaluation. Though lambda is already lazy loading, when compiling chef recipe's, the resource where you call the lambda expression is still being evaluated. So to prevent it to being evaluated (somehow), I've put it inside a lazy evaluation string.
The lambda expression
app_version = lambda{`cat version`}
then the resource block
file 'tmp/validate.version' do
user 'user'
group 'user_group'
content lazy { app_version.call }
mode '0755'
end
Hope this can help others too :) or if you have some better solution please do let me know :)
I'm currently trying to use ExecJS to run Handlebars for one of the product I work on (note: I know the handlebars.rb gem which is really cool and I used it for some times but there is issues to get it installed on Windows, so I try another homemade solution).
One of the problem I'm having is that the Javascript context is not kept between each "call" to ExecJS.
Here the code where I instantiate the #js attribute:
class Context
attr_reader :js, :partials, :helpers
def initialize
src = File.open(::Handlebars::Source.bundled_path, 'r').read
#js = ExecJS.compile(src)
end
end
And here's a test showing the issue:
let(:ctx) { Hiptest::Handlebars::Context.new }
it "does not keep context properly (or I'm using the tool wrong" do
ctx.js.eval('my_variable = 42')
expect(ctx.js.eval('my_variable')).to eq(42)
end
And now when I run it:
rspec spec/handlebars_spec.rb:10 1 ↵
I, [2015-02-21T16:57:30.485774 #35939] INFO -- : Not reporting to Code Climate because ENV['CODECLIMATE_REPO_TOKEN'] is not set.
Run options: include {:locations=>{"./spec/handlebars_spec.rb"=>[10]}}
F
Failures:
1) Hiptest::Handlebars Context does not keep context properly (or I'm using the tool wrong
Failure/Error: expect(ctx.js.eval('my_variable')).to eq(42)
ExecJS::ProgramError:
ReferenceError: Can't find variable: my_variable
Note: I got the same issue with "exec" instead of "eval".
That is a silly example. What I really want to do it to run "Handlebars.registerPartial" and later on "Handlebars.compile". But when trying to use the partials in the template it fails because the one registered previously is lost.
Note that I've found a workaround but I find it pretty ugly :/
def register_partial(name, content)
#partials[name] = content
end
def call(*args)
#context.js.call([
"(function (partials, helpers, tmpl, args) {",
" Object.keys(partials).forEach(function (key) {",
" Handlebars.registerPartial(key, partials[key]);",
" })",
" return Handlebars.compile(tmpl).apply(null, args);",
"})"].join("\n"), #partials, #template, args)
end
Any idea on how to fix the issue ?
Only the context you create when you call ExecJS.compile is preserved between evals. Anything you want preserved needs to be part of the initial compile.
I've been searching around for a bit and couldn't find anything that really helped me. Especially because sometimes things don't seem to be consistant.
I have the following YAML that I use to store data/ configuration stuff:
---
global:
name: Core Config
cfg_version: 0.0.1
databases:
main_database:
name: Main
path: ~/Documents/main.reevault
read_only: false
...
I know how to update fields with:
cfg = YAML.load_file("test.yml")
cfg['global']['name'] = 'New Name'
File.open("test.yml", "w"){ |f| YAML.dump(cfg, f) }
And that's essentially everybody on the internet talks about. However here is my problem: I want to dynamically be able to add new fields to that file. e.g. under the "databases" section have a "secondary_db" field with it's own name, path and read_only boolean. I would have expected to do that by just adding stuff to the hash:
cfg['global']['databases']['second_db'] = nil
cfg['global']['databases']['second_db']['name'] = "Secondary Database"
cfg['global']['databases']['second_db']['path'] = "http://someurl.remote/blob/db.reevault"
cfg['global']['databases']['second_db']['read_only'] = "true"
File.open("test.yml", "w"){ |f| YAML.dump(cfg, f) }
But I get this error:
`<main>': undefined method `[]=' for nil:NilClass (NoMethodError)
My question now is: how do I do this? Is there a way with the YAML interface? Or do I have to write stuff into the file manually? I would prefer something via the YAML module as it takes care of formatting/ indentation for me.
Hope someone can help me.
Yo have to initialize cfg['global']['database']['second_db'] to be a hash not nil. Try this cfg['global']['database']['second_db'] = {}
I'm trying to create a minitest for chef (minitest::spec) and I'm a little lost at how to accomplish what I want in ruby.
What I want to do is have the code run the 'date' command and then check if the output contains 'UTC'.
I have this so far, but I don't know how to check the output for 'true':
it "uses the correct timezone" do
timezone_check = shell_out("date")
timezone_check.to_s.include?('UTC')
end
I tried to use .must_output, but I don't know how to incorporate it. Is this even the best way to accomplish what I want?
Any input is appreciated!
Thanks.
EDIT: I have now tried this:
it "uses the correct timezone" do
date_input = `date`
proc { puts date_input.to_s }.must_output /UTC/
end
but it results in this:
Failure:
test_0002_uses_the_correct_timezone(recipe::base::default) [/var/chef/minitest/base/default_test.rb:18]:
In stdout.
--- expected
+++ actual
## -1 +1,2 ##
-/UTC/
+"Fri Apr 19 17:50:27 UTC 2013
+"
Testing shell_out requires you to test against stdout
it "uses the correct timezone" do
timezone_check = shell_out("date")
timezone_check.stdout.must_match /UTC/
end
For more examples check out Cookbook Integration Testing
Wrap it in a proc and try using must_output. The test would probably look like:
it "uses the correct timezone" do
proc { timezone_check = shell_out("date") }.should_output /UTC/
end
Not entirely sure from the documentation that the should_output method will accept a pattern, but if you can write the test such that you know precisely the entire output expected, then you can simply test against the full expected string. E.g.
it "uses the correct timezone" do
proc { timezone_check = shell_out("date") }.should_output("Fri Apr 19 12:33:13 CDT 2013")
end
Environment : Rails 3.1.1 and Rspec 2.10.1
I am loading all my application configuration through an external YAML file. My initializer (config/initializers/load_config.rb) looks like this
AppConfig = YAML.load_file("#{RAILS_ROOT}/config/config.yml")[RAILS_ENV]
And my YAML file sits under config/config.yml
development:
client_system: SWN
b2c_agent_number: '10500'
advocacy_agent_number: 16202
motorcycle_agent_number: '10400'
tso_agent_number: '39160'
feesecure_eligible_months_for_monthly_payments: 1..12
test:
client_system: SWN
b2c_agent_number: '10500'
advocacy_agent_number: 16202
motorcycle_agent_number: '10400'
tso_agent_number: '39160'
feesecure_eligible_months_for_monthly_payments: 1..11
And I access these values as, For example AppConfig['feesecure_eligible_months_for_monthly_payments']
In one of my tests I need AppConfig['feesecure_eligible_months_for_monthly_payments'] to return a different value but am not sure how to accomplish this. I tried the following approach with no luck
describe 'monthly_option_available?' do
before :each do
#policy = FeeSecure::Policy.new
#settlement_breakdown = SettlementBreakdown.new
#policy.stub(:settlement_breakdown).and_return(#settlement_breakdown)
#date = Date.today
Date.should_receive(:today).and_return(#date)
#config = mock(AppConfig)
AppConfig.stub(:feesecure_eligible_months_for_monthly_payments).and_return('1..7')
end
.....
end
In my respective class I am doing something like this
class Policy
def eligible_month?
eval(AppConfig['feesecure_eligible_months_for_monthly_payments']).include?(Date.today.month)
end
....
end
Can someone please point me in the right direction!!
The method that is being called when you do AppConfig['foo'] is the [] method, which takes one argument (the key to retrieve)
Therefore what you could do in your test is
AppConfig.stub(:[]).and_return('1..11')
You can use with to setup different expectations based on the value of the argument, ie
AppConfig.stub(:[]).with('foo').and_return('1..11')
AppConfig.stub(:[]).with('bar').and_return(3)
You don't need to setup a mock AppConfig object - you can stick your stub straight on the 'real' one.