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path: root/spec/unit/parameter/value_collection_spec.rb
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#!/usr/bin/env ruby

require File.dirname(__FILE__) + '/../../spec_helper'

require 'puppet/parameter'

describe Puppet::Parameter::ValueCollection do
    before do
        @collection = Puppet::Parameter::ValueCollection.new
    end

    it "should have a method for defining new values" do
        @collection.should respond_to(:newvalues)
    end

    it "should have a method for adding individual values" do
        @collection.should respond_to(:newvalue)
    end

    it "should be able to retrieve individual values" do
        value = @collection.newvalue(:foo)
        @collection.value(:foo).should equal(value)
    end

    it "should be able to add an individual value with a block" do
        @collection.newvalue(:foo) { raise "testing" }
        @collection.value(:foo).block.should be_instance_of(Proc)
    end

    it "should be able to add values that are empty strings" do
        lambda { @collection.newvalue('') }.should_not raise_error
    end

    it "should be able to add values that are empty strings" do
        value = @collection.newvalue('')
        @collection.match?('').should equal(value)
    end

    it "should set :call to :none when adding a value with no block" do
        value = @collection.newvalue(:foo)
        value.call.should == :none
    end

    describe "when adding a value with a block" do
        it "should set the method name to 'set_' plus the value name" do
            value = @collection.newvalue(:myval) { raise "testing" }
            value.method.should == "set_myval"
        end
    end

    it "should be able to add an individual value with options" do
        value = @collection.newvalue(:foo, :call => :bar)
        value.call.should == :bar
    end

    it "should have a method for validating a value" do
        @collection.should respond_to(:validate)
    end

    it "should have a method for munging a value" do
        @collection.should respond_to(:munge)
    end

    it "should be able to generate documentation when it has both values and regexes" do
        @collection.newvalues :foo, "bar", %r{test}
        @collection.doc.should be_instance_of(String)
    end

    it "should correctly generate documentation for values" do
        @collection.newvalues :foo
        @collection.doc.should be_include("Valid values are ``foo``")
    end

    it "should correctly generate documentation for regexes" do
        @collection.newvalues %r{\w+}
        @collection.doc.should be_include("Values can match ``/\\w+/``")
    end

    it "should be able to find the first matching value" do
        @collection.newvalues :foo, :bar
        @collection.match?("foo").should be_instance_of(Puppet::Parameter::Value)
    end

    it "should be able to match symbols" do
        @collection.newvalues :foo, :bar
        @collection.match?(:foo).should be_instance_of(Puppet::Parameter::Value)
    end

    it "should be able to match symbols when a regex is provided" do
        @collection.newvalues %r{.}
        @collection.match?(:foo).should be_instance_of(Puppet::Parameter::Value)
    end

    it "should be able to match values using regexes" do
        @collection.newvalues %r{.}
        @collection.match?("foo").should_not be_nil
    end

    it "should prefer value matches to regex matches" do
        @collection.newvalues %r{.}, :foo
        @collection.match?("foo").name.should == :foo
    end

    describe "when validating values" do
        it "should do nothing if no values or regexes have been defined" do
            @collection.validate("foo")
        end

        it "should fail if the value is not a defined value or alias and does not match a regex" do
            @collection.newvalues :foo
            lambda { @collection.validate("bar") }.should raise_error(ArgumentError)
        end

        it "should succeed if the value is one of the defined values" do
            @collection.newvalues :foo
            lambda { @collection.validate(:foo) }.should_not raise_error(ArgumentError)
        end

        it "should succeed if the value is one of the defined values even if the definition uses a symbol and the validation uses a string" do
            @collection.newvalues :foo
            lambda { @collection.validate("foo") }.should_not raise_error(ArgumentError)
        end

        it "should succeed if the value is one of the defined values even if the definition uses a string and the validation uses a symbol" do
            @collection.newvalues "foo"
            lambda { @collection.validate(:foo) }.should_not raise_error(ArgumentError)
        end

        it "should succeed if the value is one of the defined aliases" do
            @collection.newvalues :foo
            @collection.aliasvalue :bar, :foo
            lambda { @collection.validate("bar") }.should_not raise_error(ArgumentError)
        end

        it "should succeed if the value matches one of the regexes" do
            @collection.newvalues %r{\d}
            lambda { @collection.validate("10") }.should_not raise_error(ArgumentError)
        end
    end

    describe "when munging values" do
        it "should do nothing if no values or regexes have been defined" do
            @collection.munge("foo").should == "foo"
        end

        it "should return return any matching defined values" do
            @collection.newvalues :foo, :bar
            @collection.munge("foo").should == :foo
        end

        it "should return any matching aliases" do
            @collection.newvalues :foo
            @collection.aliasvalue :bar, :foo
            @collection.munge("bar").should == :foo
        end

        it "should return the value if it matches a regex" do
            @collection.newvalues %r{\w}
            @collection.munge("bar").should == "bar"
        end

        it "should return the value if no other option is matched" do
            @collection.newvalues :foo
            @collection.munge("bar").should == "bar"
        end
    end
end