def testBook(self):
b = Book()
b.title = "Booktitle"
b.creators = ["Creator1"]
b.publisher = "Publisher"
b.pubdate = "2008-04-03"
b.isbn = "1234512341234"
self.assertEqual(6, len(self.graph))
a4.issue = nlr56
a5 = Article("<tag:colletti-on,2009-04-23>")
a5.creators = ["Geoff Mann"]
a5.title = "Colletti on the Credit Crunch"
a5.abstract = "What political opportunities arise from the current financial crisis? In a critical response to Robin Blackburn’s essay in NLR 50, Geoff Mann proposes the insights of Marx’s theory of value as a starting point for thinking beyond capitalist social relations—as Blackburn’s measures, he argues, do not."
a5.issue = nlr56
a6 = Article("<tag:value-theory,2009-04-23>")
a6.creators = ["Robin Blackburn"]
a6.title = "Value Theory and the Chinese Worker"
a6.abstract = "In answer to Mann, Blackburn explores the paradoxes of fictitious capital, underwritten by super-exploitation of China’s producers. A public-utility credit system, democratic forms of nationalization and mechanisms to socialize investment as steps towards financial dual power."
a6.issue = nlr56
heinsohn2008 = Book("<urn:isbn:9783492251242>")
heinsohn2008.creators = ["Gunnar Heinsohn"]
heinsohn2008.title = u"Söhne und Weltmacht: Terror im Aufstieg und Fall der Nationen"
heinsohn2008.isbn = "9783492251242"
heinsohn2008.publisher = "Piper"
heinsohn2008.pubdate = "2008"
heinsohn2008.citation = "Gunnar Heinsohn, Söhne und Weltmacht: Terror im Aufstieg und Fall der Nationen, Piper: Munich 2008, €9.20, paperback,189 pp, 978 3 492 25124 2."
a7 = Article("<tag:goran-therborn-on-heinsohn,2009-04-25>")
a7.title = u"Göran Therborn on Heinsohn, Söhne und Weltmacht"
a7.creators = [u"Göran Therborn"]
a7.abstract = "Political demography of the Mid-East youth bulge as threat to Western power."
a7.issue = nlr56
a7.reviewOf = [heinsohn2008]
guha2007 = Book("<urn:isbn:9780230016545>")
