func (s *cloudImageMetadataSuite) TestCloudImageMetadataDocFields(c *gc.C) {
ignored := set.NewStrings("Id")
migrated := set.NewStrings(
"Stream",
"Region",
"Version",
"Series",
"Arch",
"VirtType",
"RootStorageType",
"RootStorageSize",
"Source",
"Priority",
"ImageId",
"DateCreated",
)
fields := migrated.Union(ignored)
expected := testing.GetExportedFields(imagesMetadataDoc{})
unknown := expected.Difference(fields)
removed := fields.Difference(expected)
// If this test fails, it means that extra fields have been added to the
// doc without thinking about the migration implications.
c.Check(unknown, gc.HasLen, 0)
c.Assert(removed, gc.HasLen, 0)
}
func (s *MigrationSuite) AssertExportedFields(c *gc.C, doc interface{}, fields set.Strings) {
expected := testing.GetExportedFields(doc)
unknown := expected.Difference(fields)
removed := fields.Difference(expected)
// If this test fails, it means that extra fields have been added to the
// doc without thinking about the migration implications.
c.Check(unknown, gc.HasLen, 0)
c.Assert(removed, gc.HasLen, 0)
}