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# Copyright (c) Microsoft. All rights reserved.
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#   http://www.apache.org/licenses/LICENSE-2.0
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require "integration/test_helper"
require "azure/blob/blob_service"

describe Azure::Blob::BlobService do
  subject { Azure::Blob::BlobService.new }
  after { TableNameHelper.clean }
  
  describe '#set/get_blob_metadata' do
    let(:container_name) { ContainerNameHelper.name }
    let(:blob_name) { "blobname" }
    let(:length) { 1024 }
    let(:metadata){ {"custommetadata" => "CustomMetadataValue"} }
    before { 
      subject.create_container container_name
      subject.create_page_blob container_name, blob_name, length
    }

    it 'sets and gets metadata for a blob' do
      result = subject.set_blob_metadata container_name, blob_name, metadata
      result.must_be_nil
      blob = subject.get_blob_metadata container_name, blob_name

      metadata.each { |k,v|
        blob.metadata.must_include k
        blob.metadata[k].must_equal v
      }
    end

    describe 'when a blob has a snapshot' do 
      let(:snapshot) { subject.create_blob_snapshot container_name, blob_name, {:metadata => metadata }}
      before { s = snapshot }

      it 'gets metadata for a blob snapshot (when set during create)' do

        blob = subject.get_blob_metadata container_name, blob_name, { :snapshot => snapshot }

        blob.snapshot.must_equal snapshot
        metadata.each { |k,v|
          blob.metadata.must_include k
          blob.metadata[k].must_equal v
        }
          
      end

      it 'errors if the snapshot does not exist' do
        assert_raises(Azure::Core::Http::HTTPError) do
          subject.get_blob_metadata container_name, blob_name, { :snapshot => "invalidsnapshot" }
        end
      end
    end
    
    it 'errors if the blob name does not exist' do
      assert_raises(Azure::Core::Http::HTTPError) do
        subject.get_blob_metadata container_name, "thisblobdoesnotexist"
      end
      assert_raises(Azure::Core::Http::HTTPError) do
        subject.set_blob_metadata container_name, "thisblobdoesnotexist", metadata
      end
    end
  end
end