Upstream's test suite is broken and fails 5 tests, although make doesn't return an error and hence src_test() doesn't die. The testsuite is fixed in xen-unstable, so I'll attach the neccessary patches to both the xen source and the ebuild itself.
Created attachment 92362 [details] log of ebuild test phase, showing failure
Created attachment 92364 [details, diff] xen-tools-3.0.2-test-uuid.patch This patch is taken from http://lists.xensource.com/archives/html/xen-changelog/2006-04/msg00086.html , and it fixes the first test failure.
Created attachment 92365 [details, diff] xen-tools-3.0.2-test-xauthority.patch This patch comes from http://lists.xensource.com/archives/html/xen-changelog/2006-04/msg00087.html , and fixes the remaining test failures.
Created attachment 92366 [details, diff] ebuild patch to apply test-{uuid,xauthority} patches
Fixed with no revision bump, in both xen-tools-3.0.2-r1 and xen-tools-3.0.2-r2 .