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$:.unshift File.join(File.dirname(__FILE__), "..", "lib")
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require "metacat.rb"
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require "test/unit"
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class MetacatTest < Test::Unit::TestCase
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  def setup
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    # This test case is setup for use against the ucsb/msi metacat server
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    # You need a valid login to run the test case as well as an squery, eml-docid,
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    # and datatable docid that will all return documents
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    @username = 'uid=cburt,o=PISCO,dc=ecoinformatics,dc=org'
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    @password = '7lobster'
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    @metacat = Metacat.new("http://data.piscoweb.org/catalog/metacat")
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    #must return at least one eml document
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    @squery = '<?xml version="1.0"?>
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                 <pathquery version="1.2">
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                   <returndoctype>eml://ecoinformatics.org/eml-2.0.1</returndoctype>
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                   <returndoctype>eml://ecoinformatics.org/eml-2.0.0</returndoctype>
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                   <returnfield>dataset/title</returnfield>
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                   <returnfield>dataTable/entityName</returnfield>
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                   <returnfield>creator/individualName/surName</returnfield>
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                   <returnfield>creator/organizationName</returnfield>
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                   <returnfield>dataTable/physical/distribution/online/url</returnfield>
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                   <querygroup operator="INTERSECT">
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                     <queryterm casesensitive="false" searchmode="starts-with">
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                       <value>PISCO:</value>
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                       <pathexpr>title</pathexpr>
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                     </queryterm>
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                     <querygroup operator="INTERSECT">
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                       <queryterm casesensitive="true" searchmode="equals">
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                         <value>Subtidal Community Survey Data</value>
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                         <pathexpr>keywordSet/keyword</pathexpr>
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                       </queryterm>
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                       <queryterm casesensitive="true" searchmode="equals">
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                         <value>PISCO Categories</value>
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                         <pathexpr>keywordSet/keywordThesaurus</pathexpr>
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                       </queryterm>
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                     </querygroup>
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                   </querygroup>
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                 </pathquery>'
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    @data_table_docid = 'HMS001_020ADCP019R00_20060612.40.1'
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    @eml_docid = 'HMS001_020ADCP019R00_20060612.50.1'
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    # Not accessable to user Public
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    @locked_docid = 'chad.1.1'
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  end
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  def teardown
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  end
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  # Metacat.new
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  def test_new
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    assert_kind_of Metacat, Metacat.new("http://data.piscoweb.org/catalog/metacat")
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  end
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  def test_initial_login
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    metacat = Metacat.new("http://data.piscoweb.org/catalog/metacat", 
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    'username' => @username, 'password' => @password)
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    assert metacat
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    assert metacat.logged_in?
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  end
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  def test_login_and_yield
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    Metacat.new("http://data.piscoweb.org/catalog/metacat", 
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    'username' => @username, 'password' => @password) do |metacat|
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      assert metacat.logged_in?
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    end
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  end
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  # Metacat.find()
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  def test_error_if_docid_and_squery_set?
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    assert_raises ArgumentError do
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      @metacat.find(
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      :docid => @eml_docid, 
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      :squery => 'bs'
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      )
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    end
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  end
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  def test_nil_if_document_does_not_exist?
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    assert_nil @metacat.find(:docid => 'bs_docid.80.9')
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  end
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  def test_permission_denied
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    assert_raise(MetacatPermissionDenied) { @metacat.find(:docid  =>  @locked_docid) }
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  end
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  def test_returns_eml?
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    assert_kind_of Eml, 
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    @metacat.find(:docid => @eml_docid)  
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  end
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  def test_will_not_return_data_table
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    assert_nil @metacat.find(:docid => @data_table_docid)
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  end
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  def test_returns_array_of_eml_objects?
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    results = @metacat.find(:squery => @squery)
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    assert_kind_of Array, results
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    assert_kind_of Eml, results[0]
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  end
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  # Metacat.login/logout
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  def test_login
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    assert @metacat.login(@username, @password)
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    assert @metacat.logged_in?
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  end
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  def test_logout
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    assert @metacat.login(@username, @password)
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    assert @metacat.logout
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    assert_equal false, @metacat.logged_in?
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  end  
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  def test_failed_login
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    assert_raise(MetacatPermissionDenied) do
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      @metacat.login('bleh', @password)
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    end
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  end
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  # Metacat.read
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  def test_read_eml
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    doc = @metacat.read(@eml_docid)
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    assert_kind_of(REXML::Document, doc)
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    assert_equal doc.root.name, 'eml'
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  end
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  def test_read_xml
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    # not sure how to search for this yet
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  end
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  def test_read_data_table
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    file = File.open('tmp.data_table', 'w+')
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    @metacat.read(@data_table_docid) do |buffer|
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      file.write(buffer)
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    end
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    file.close
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    assert_equal(File.size('tmp.data_table'), File.size(File.dirname(__FILE__)+'/example.data_table'))
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    File.delete('tmp.data_table')
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  end
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  # Metacat.squery
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  def test_returns_xml
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    doc = REXML::Document.new(@metacat.squery(@squery))    
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    assert doc
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    assert_equal 'resultset', doc.root.name
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  end
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  # Metacat.insert
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  # Metacat.update
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  # query_string
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  def test_string_formatting
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    hash = {
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      'genus'     =>  'Caranx',
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      'species'   =>  'melampygus'
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    }
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    assert_equal  '?genus=Caranx&species=melampygus', @metacat.send(:query_string, hash)
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  end
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end
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