assertNumberOf("proposals", proposals.size(), 1);
assertNumberOfProposals(proposals, 1);
	public void testUnwrapParanthesis() throws Exception {		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);		StringBuffer buf= new StringBuffer();		buf.append("package test1;\n");		buf.append("public class E {\n");		buf.append("    public int foo() {\n");		buf.append("        return (9+ 8);\n");		buf.append("    }\n");		buf.append("}\n");		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);				String str= "(9+ 8)";		AssistContext context= getCorrectionContext(cu, buf.toString().indexOf(str), 0);		List proposals= collectAssists(context, false);				assertNumberOf("proposals", proposals.size(), 1);		assertCorrectLabels(proposals);				CUCorrectionProposal proposal= (CUCorrectionProposal) proposals.get(0);		String preview= getPreviewContent(proposal);		buf= new StringBuffer();		buf.append("package test1;\n");		buf.append("public class E {\n");		buf.append("    public int foo() {\n");		buf.append("        return 9+ 8;\n");		buf.append("    }\n");		buf.append("}\n");		assertEqualString(preview, buf.toString());		}