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Tests for OpaqueBoxedExistentials initWithXXX value witnesses #9248

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Merged
merged 1 commit into from
May 3, 2017
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Tests for OpaqueBoxedExistentials initWithXXX value witnesses #9248

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136 changes: 134 additions & 2 deletions unittests/runtime/Metadata.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1227,7 +1227,6 @@ TEST(TestOpaqueExistentialBox, test_assignWithCopy_indirect_indirect) {
FullOpaqueMetadata testMetadata2 = {{&testTable2}, {{MetadataKind::Opaque}}};
Metadata *metadata2 = &testMetadata2.base;

void *zeroPtr = nullptr;
auto refAndObjectAddr = BoxPair(swift_allocBox(metadata));
swift_retain(refAndObjectAddr.first);
auto refAndObjectAddr2 = BoxPair(swift_allocBox(metadata2));
Expand Down Expand Up @@ -1264,7 +1263,6 @@ TEST(TestOpaqueExistentialBox, test_assignWithTake_indirect_indirect) {
FullOpaqueMetadata testMetadata2 = {{&testTable2}, {{MetadataKind::Opaque}}};
Metadata *metadata2 = &testMetadata2.base;

void *zeroPtr = nullptr;
auto refAndObjectAddr = BoxPair(swift_allocBox(metadata));
swift_retain(refAndObjectAddr.first);
auto refAndObjectAddr2 = BoxPair(swift_allocBox(metadata2));
Expand Down Expand Up @@ -1424,3 +1422,137 @@ TEST(TestOpaqueExistentialBox, test_assignWithTake_indirect_pod) {
EXPECT_EQ(existBox.buffer.PrivateData[2], someAddr);
EXPECT_EQ(swift_retainCount(refAndObjectAddr2.first), 1);
}

TEST(TestOpaqueExistentialBox, test_initWithCopy_pod) {
auto any =
swift_getExistentialTypeMetadata(ProtocolClassConstraint::Any,
/*superclass=*/nullptr, 0, nullptr);
auto anyVWT = any->getValueWitnesses();

ValueWitnessTable testTable;
initialize_pod_witness_table(testTable);
FullOpaqueMetadata testMetadata = {{&testTable}, {{MetadataKind::Opaque}}};
Metadata *metadata = &testMetadata.base;

ValueWitnessTable testTable2;
initialize_pod_witness_table(testTable2);
FullOpaqueMetadata testMetadata2 = {{&testTable2}, {{MetadataKind::Opaque}}};
Metadata *metadata2 = &testMetadata2.base;

void *zeroPtr = nullptr;
void *otherPtr = &zeroPtr;
struct {
ValueBuffer buffer;
Metadata *type;
uintptr_t canary;
} existBox{{{zeroPtr, zeroPtr, zeroPtr}}, metadata, 0x5A5A5A5AU},
existBox2{{{otherPtr, otherPtr, zeroPtr}}, metadata2, 0xB5A5A5A5U};

anyVWT->initializeWithCopy(reinterpret_cast<OpaqueValue *>(&existBox),
reinterpret_cast<OpaqueValue *>(&existBox2), any);
EXPECT_EQ(existBox.type, metadata2);
EXPECT_EQ(existBox.canary, 0x5A5A5A5AU);
EXPECT_EQ(existBox.buffer.PrivateData[0], otherPtr);
EXPECT_EQ(existBox.buffer.PrivateData[1], otherPtr);
EXPECT_EQ(existBox.buffer.PrivateData[2], zeroPtr);
}

TEST(TestOpaqueExistentialBox, test_initWithTake_pod) {
auto any =
swift_getExistentialTypeMetadata(ProtocolClassConstraint::Any,
/*superclass=*/nullptr, 0, nullptr);
auto anyVWT = any->getValueWitnesses();

ValueWitnessTable testTable;
initialize_pod_witness_table(testTable);
FullOpaqueMetadata testMetadata = {{&testTable}, {{MetadataKind::Opaque}}};
Metadata *metadata = &testMetadata.base;

ValueWitnessTable testTable2;
initialize_pod_witness_table(testTable2);
FullOpaqueMetadata testMetadata2 = {{&testTable2}, {{MetadataKind::Opaque}}};
Metadata *metadata2 = &testMetadata2.base;

void *zeroPtr = nullptr;
void *otherPtr = &zeroPtr;
struct {
ValueBuffer buffer;
Metadata *type;
uintptr_t canary;
} existBox{{{zeroPtr, zeroPtr, zeroPtr}}, metadata, 0x5A5A5A5AU},
existBox2{{{otherPtr, otherPtr, zeroPtr}}, metadata2, 0xB5A5A5A5U};

anyVWT->initializeWithTake(reinterpret_cast<OpaqueValue *>(&existBox),
reinterpret_cast<OpaqueValue *>(&existBox2), any);
EXPECT_EQ(existBox.type, metadata2);
EXPECT_EQ(existBox.canary, 0x5A5A5A5AU);
EXPECT_EQ(existBox.buffer.PrivateData[0], otherPtr);
EXPECT_EQ(existBox.buffer.PrivateData[1], otherPtr);
EXPECT_EQ(existBox.buffer.PrivateData[2], zeroPtr);
}

TEST(TestOpaqueExistentialBox, test_initWithCopy_indirect) {
auto any =
swift_getExistentialTypeMetadata(ProtocolClassConstraint::Any,
/*superclass=*/nullptr, 0, nullptr);
auto anyVWT = any->getValueWitnesses();

ValueWitnessTable testTable;
initialize_pod_witness_table(testTable);
FullOpaqueMetadata testMetadata = {{&testTable}, {{MetadataKind::Opaque}}};
Metadata *metadata = &testMetadata.base;

ValueWitnessTable testTable2;
initialize_indirect_witness_table(testTable2);
FullOpaqueMetadata testMetadata2 = {{&testTable2}, {{MetadataKind::Opaque}}};
Metadata *metadata2 = &testMetadata2.base;

auto refAndObjectAddr2 = BoxPair(swift_allocBox(metadata2));
struct {
ValueBuffer buffer;
Metadata *type;
uintptr_t canary;
} existBox{{{nullptr, nullptr, nullptr}}, metadata, 0x5A5A5A5AU},
existBox2{{{refAndObjectAddr2.first, nullptr, nullptr}}, metadata2, 0xB5A5A5A5U};

anyVWT->initializeWithCopy(reinterpret_cast<OpaqueValue *>(&existBox),
reinterpret_cast<OpaqueValue *>(&existBox2), any);

EXPECT_EQ(existBox.type, metadata2);
EXPECT_EQ(existBox.canary, 0x5A5A5A5AU);
EXPECT_EQ(existBox.buffer.PrivateData[0], refAndObjectAddr2.first);
EXPECT_EQ(swift_retainCount(refAndObjectAddr2.first), 2);
}

TEST(TestOpaqueExistentialBox, test_initWithTake_indirect) {
auto any =
swift_getExistentialTypeMetadata(ProtocolClassConstraint::Any,
/*superclass=*/nullptr, 0, nullptr);
auto anyVWT = any->getValueWitnesses();

ValueWitnessTable testTable;
initialize_pod_witness_table(testTable);
FullOpaqueMetadata testMetadata = {{&testTable}, {{MetadataKind::Opaque}}};
Metadata *metadata = &testMetadata.base;

ValueWitnessTable testTable2;
initialize_indirect_witness_table(testTable2);
FullOpaqueMetadata testMetadata2 = {{&testTable2}, {{MetadataKind::Opaque}}};
Metadata *metadata2 = &testMetadata2.base;

auto refAndObjectAddr2 = BoxPair(swift_allocBox(metadata2));
struct {
ValueBuffer buffer;
Metadata *type;
uintptr_t canary;
} existBox{{{nullptr, nullptr, nullptr}}, metadata, 0x5A5A5A5AU},
existBox2{{{refAndObjectAddr2.first, nullptr, nullptr}}, metadata2, 0xB5A5A5A5U};

anyVWT->initializeWithTake(reinterpret_cast<OpaqueValue *>(&existBox),
reinterpret_cast<OpaqueValue *>(&existBox2), any);

EXPECT_EQ(existBox.type, metadata2);
EXPECT_EQ(existBox.canary, 0x5A5A5A5AU);
EXPECT_EQ(existBox.buffer.PrivateData[0], refAndObjectAddr2.first);
EXPECT_EQ(swift_retainCount(refAndObjectAddr2.first), 1);
}