152 lines
4.0 KiB
Ruby
152 lines
4.0 KiB
Ruby
require "ostruct"
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require File.expand_path("../../../../base", __FILE__)
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describe Vagrant::Config::V2::Loader do
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include_context "unit"
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before(:each) do
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# Force the V2 loader to believe that we are in V2
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stub_const("Vagrant::Config::CURRENT_VERSION", "2")
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end
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describe "empty" do
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it "returns an empty configuration object" do
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result = described_class.init
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result.should be_kind_of(Vagrant::Config::V2::Root)
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end
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end
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describe "finalizing" do
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it "should call `#finalize` on the configuration object" do
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# Register a plugin for our test
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register_plugin("2") do |plugin|
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plugin.config "foo" do
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Class.new(Vagrant.plugin("2", "config")) do
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attr_accessor :bar
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def finalize!
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@bar = "finalized"
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end
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end
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end
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end
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# Create the proc we're testing
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config_proc = Proc.new do |config|
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config.foo.bar = "value"
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end
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# Test that it works properly
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config = described_class.load(config_proc)
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config.foo.bar.should == "value"
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# Finalize it
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described_class.finalize(config)
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config.foo.bar.should == "finalized"
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end
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end
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describe "loading" do
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it "should configure with all plugin config keys loaded" do
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# Register a plugin for our test
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register_plugin("2") do |plugin|
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plugin.config("foo") { OpenStruct }
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end
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# Create the proc we're testing
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config_proc = Proc.new do |config|
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config.foo.bar = "value"
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end
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# Test that it works properly
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config = described_class.load(config_proc)
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config.foo.bar.should == "value"
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end
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end
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describe "merging" do
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it "should merge available configuration keys" do
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old = Vagrant::Config::V2::Root.new({ :foo => Object })
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new = Vagrant::Config::V2::Root.new({ :bar => Object })
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result = described_class.merge(old, new)
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result.foo.should be_kind_of(Object)
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result.bar.should be_kind_of(Object)
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end
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it "should merge instantiated objects" do
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config_class = Class.new do
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attr_accessor :value
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end
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old = Vagrant::Config::V2::Root.new({ :foo => config_class })
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old.foo.value = "old"
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new = Vagrant::Config::V2::Root.new({ :bar => config_class })
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new.bar.value = "new"
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result = described_class.merge(old, new)
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result.foo.value.should == "old"
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result.bar.value.should == "new"
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end
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it "should merge conflicting classes by calling `merge`" do
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config_class = Class.new do
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attr_accessor :value
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def merge(new)
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result = self.class.new
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result.value = @value + new.value
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result
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end
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end
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old = Vagrant::Config::V2::Root.new({ :foo => config_class })
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old.foo.value = 10
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new = Vagrant::Config::V2::Root.new({ :foo => config_class })
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new.foo.value = 15
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result = described_class.merge(old, new)
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result.foo.value.should == 25
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end
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end
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describe "upgrading" do
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it "should continue fine if the key doesn't implement upgrade" do
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# Make an old V1 root object
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old = Vagrant::Config::V1::Root.new({ :foo => Class.new })
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# It should work fine
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expect { result = described_class.upgrade(old) }.to_not raise_error
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end
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it "should upgrade the config if it implements the upgrade method" do
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# Create the old V1 class that will be upgraded
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config_class = Class.new do
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attr_accessor :value
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def upgrade(new)
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new.foo.value = value * 2
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[["foo"], ["bar"]]
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end
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end
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# Create the new V2 plugin it is writing to
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register_plugin("2") do |p|
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p.config("foo") { OpenStruct }
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end
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# Test it out!
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old = Vagrant::Config::V1::Root.new({ :foo => config_class })
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old.foo.value = 5
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data = described_class.upgrade(old)
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data[0].foo.value.should == 10
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data[1].should == ["foo"]
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data[2].should == ["bar"]
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end
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end
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end
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