def testGetVersionInfoComplexOrder(self):
"""Tests pack.GetVersionInfo() using a struct whose definition order,
ordinal order and pack order for fields are all different.
"""
struct = mojom.Struct('test')
struct.AddField('field_3', mojom.BOOL, ordinal=3,
attributes={'MinVersion': 3})
struct.AddField('field_0', mojom.INT32, ordinal=0)
struct.AddField('field_1', mojom.INT64, ordinal=1,
attributes={'MinVersion': 2})
struct.AddField('field_2', mojom.INT64, ordinal=2,
attributes={'MinVersion': 3})
ps = pack.PackedStruct(struct)
versions = pack.GetVersionInfo(ps)
self.assertEquals(3, len(versions))
self.assertEquals(0, versions[0].version)
self.assertEquals(1, versions[0].num_fields)
self.assertEquals(16, versions[0].num_bytes)
self.assertEquals(2, versions[1].version)
self.assertEquals(2, versions[1].num_fields)
self.assertEquals(24, versions[1].num_bytes)
self.assertEquals(3, versions[2].version)
self.assertEquals(4, versions[2].num_fields)
self.assertEquals(32, versions[2].num_bytes)
def GetResponseStructFromMethod(method):
params_class = "%s_%s_ResponseParams" % (GetNameForElement(method.interface),
GetNameForElement(method))
struct = mojom.Struct(params_class, module=method.interface.module)
for param in method.response_parameters:
struct.AddField("out%s" % GetNameForElement(param),
param.kind, param.ordinal)
struct.packed = pack.PackedStruct(struct)
struct.bytes = pack.GetByteLayout(struct.packed)
struct.versions = pack.GetVersionInfo(struct.packed)
return struct
def testGetVersionInfoEmptyStruct(self):
"""Tests that pack.GetVersionInfo() never returns an empty list, even for
empty structs.
"""
struct = mojom.Struct('test')
ps = pack.PackedStruct(struct)
versions = pack.GetVersionInfo(ps)
self.assertEquals(1, len(versions))
self.assertEquals(0, versions[0].version)
self.assertEquals(0, versions[0].num_fields)
self.assertEquals(8, versions[0].num_bytes)
def _AddStructComputedData(exported, struct):
struct.packed = pack.PackedStruct(struct)
struct.bytes = pack.GetByteLayout(struct.packed)
struct.versions = pack.GetVersionInfo(struct.packed)
struct.exported = exported
