1 files changed, 52 insertions, 0 deletions
diff --git a/platform_simulation_specs/common/ohai_plugin_common_spec.rb b/platform_simulation_specs/common/ohai_plugin_common_spec.rb
new file mode 100644
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+++ b/platform_simulation_specs/common/ohai_plugin_common_spec.rb
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+
+# Author:: Theodore Nordsieck <theo@opscode.com>
+# Copyright:: Copyright (c) 2013 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.dirname(__FILE__) + "/ohai_plugin_common.rb")
+
+describe OhaiPluginCommon, "subsumes?" do
+  before(:each) do
+    @hash = { "languages" => { "python" => { "version" => "1.6.2", "type" => "interpreted" }}}
+  end
+
+  it "returns true if given an exact duplicate" do
+    subsumes?( @hash, @hash ).should be_true
+  end
+
+  it "returns false if given an exact duplicate with extra info" do
+    subsumes?( @hash, { "languages" => { "python" => { "version" => "1.6.2", "os" => "darwin", "type" => "interpreted" }}} ).should be_false
+    subsumes?( @hash, { "languages" => { "python" => { "version" => "1.6.2", "os" => {}, "type" => "interpreted" }}} ).should be_false
+    subsumes?( @hash, { "languages" => { "python" => { "version" => "1.6.2", "os" => { "name" => "darwin" }, "type" => "interpreted" }}} ).should be_false
+  end
+
+  it "returns true if all elements in the second hash are in the first hash" do
+    subsumes?( @hash, { "languages" => { "python" => { "version" => "1.6.2" }}} ).should be_true
+    subsumes?( @hash, { "languages" => { "python" => {}}} ).should be_true
+    subsumes?( @hash, { "languages" => {}} ).should be_true
+  end
+
+  it "returns true if the second hash contains a key pointing to a nil where the first hash has nothing" do
+    subsumes?( @hash, { "languages" => { "lua" => nil }} ).should be_true
+    subsumes?( @hash, { "languages" => { "python" => { "version" => "1.6.2" }, "lua" => nil }} ).should be_true
+  end
+
+  it "returns false if the second hash has nil in the place of a real value" do
+    subsumes?( @hash, { "languages" => { "python" => { "version" => nil }}} ).should be_false
+    subsumes?( @hash, { "languages" => { "python" => nil }} ).should be_false
+    subsumes?( { "languages" => {}}, { "languages" => nil } ).should be_false
+  end
+end