add tempfile teststm/prepend-chef

1 files changed, 85 insertions, 0 deletions

diff --git a/spec/unit/file_content_management/tempfile_spec.rb b/spec/unit/file_content_management/tempfile_spec.rb
new file mode 100644
index 0000000000..a833e21fac
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+++ b/spec/unit/file_content_management/tempfile_spec.rb
@@ -0,0 +1,85 @@
+#
+# Author:: Thom May (<thom@chef.io>)
+# Copyright:: Copyright 2016, Chef Software 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 "spec_helper"
+
+describe Chef::FileContentManagement::Tempfile do
+  let(:resource) {
+    r = Chef::Resource::File.new("new_file")
+    r.path "/foo/bar/new_file"
+    r
+  }
+
+  subject { described_class.new(resource) }
+
+  describe "#tempfile_basename" do
+    it "should return a dotfile", :unix_only do
+      expect(subject.send(:tempfile_basename)).to eql(".chef-new_file")
+    end
+
+    it "should return a file", :windows_only do
+      expect(subject.send(:tempfile_basename)).to eql("chef-new_file")
+    end
+  end
+
+  describe "#tempfile_dirnames" do
+
+    it "should select a temp dir" do
+      Chef::Config[:file_staging_uses_destdir] = false
+      expect(Dir).to receive(:tmpdir).and_return("/tmp/dir")
+      expect(subject.send(:tempfile_dirnames)).to eql(%w{ /tmp/dir })
+    end
+
+    it "should select the destdir" do
+      Chef::Config[:file_staging_uses_destdir] = true
+      expect(subject.send(:tempfile_dirnames)).to eql(%w{ /foo/bar })
+    end
+
+    it "should select the destdir and a temp dir" do
+      Chef::Config[:file_staging_uses_destdir] = :auto
+      expect(Dir).to receive(:tmpdir).and_return("/tmp/dir")
+      expect(subject.send(:tempfile_dirnames)).to eql(%w{ /foo/bar /tmp/dir })
+    end
+  end
+
+  describe "#tempfile_open" do
+    let(:tempfile) { instance_double("Tempfile") }
+    let(:tempname) { windows? ? "chef-new_file" : ".chef-new_file" }
+
+    before do
+      Chef::Config[:file_staging_uses_destdir] = :auto
+      allow(tempfile).to receive(:binmode).and_return(true)
+    end
+
+    it "should create a temporary file" do
+      expect(subject.send(:tempfile_open)).to be_a(Tempfile)
+    end
+
+    it "should pick the destdir preferrentially" do
+      expect(Tempfile).to receive(:open).with(tempname, "/foo/bar").and_return(tempfile)
+      subject.send(:tempfile_open)
+    end
+
+    it "should use ENV['TMP'] otherwise" do
+      expect(Dir).to receive(:tmpdir).and_return("/tmp/dir")
+      expect(Tempfile).to receive(:open).with(tempname, "/foo/bar").and_raise(SystemCallError, "foo")
+      expect(Tempfile).to receive(:open).with(tempname, "/tmp/dir").and_return(tempfile)
+      subject.send(:tempfile_open)
+    end
+  end
+end