Add a unit test for Invoke iteration, similar to the one for Call

The tests are refactored to use the same fixture.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204860 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 40 insertions, 11 deletions

diff --git a/unittests/IR/InstructionsTest.cpp b/unittests/IR/InstructionsTest.cpp
index 39a7d77a10..e355d16d7e 100644
--- a/unittests/IR/InstructionsTest.cpp
+++ b/unittests/IR/InstructionsTest.cpp
@@ -50,29 +50,58 @@ TEST(InstructionsTest, ReturnInst) {
   delete r1;
 }
 
-TEST(InstructionsTest, CallInst) {
-  LLVMContext &C(getGlobalContext());
-  std::unique_ptr<Module> M(new Module("MyModule", C));
+// Test fixture that provides a module and a single function within it. Useful
+// for tests that need to refer to the function in some way.
+class ModuleWithFunctionTest : public testing::Test {
+protected:
+  ModuleWithFunctionTest()
+      : M(new Module("MyModule", Ctx)),
+        FArgTypes{Type::getInt8Ty(Ctx), Type::getInt32Ty(Ctx),
+                  Type::getInt64Ty(Ctx)} {
+    FunctionType *FTy =
+        FunctionType::get(Type::getVoidTy(Ctx), FArgTypes, false);
+    F = Function::Create(FTy, Function::ExternalLinkage, "", M.get());
+  }
 
-  Type *ArgTypes[] = {Type::getInt8Ty(C), Type::getInt32Ty(C),
-                      Type::getInt64Ty(C)};
-  FunctionType *FTy = FunctionType::get(Type::getVoidTy(C), ArgTypes, false);
-  Function *F = Function::Create(FTy, Function::ExternalLinkage, "", M.get());
+  LLVMContext Ctx;
+  std::unique_ptr<Module> M;
+  std::vector<Type *> FArgTypes;
+  Function *F;
+};
 
-  Value *Args[] = {ConstantInt::get(Type::getInt8Ty(C), 20),
-                   ConstantInt::get(Type::getInt32Ty(C), 9999),
-                   ConstantInt::get(Type::getInt64Ty(C), 42)};
+TEST_F(ModuleWithFunctionTest, CallInst) {
+  Value *Args[] = {ConstantInt::get(Type::getInt8Ty(Ctx), 20),
+                   ConstantInt::get(Type::getInt32Ty(Ctx), 9999),
+                   ConstantInt::get(Type::getInt64Ty(Ctx), 42)};
   std::unique_ptr<CallInst> Call(CallInst::Create(F, Args));
 
   // Make sure iteration over a call's arguments works as expected.
   unsigned Idx = 0;
   for (Value *Arg : Call->arg_operands()) {
-    EXPECT_EQ(ArgTypes[Idx], Arg->getType());
+    EXPECT_EQ(FArgTypes[Idx], Arg->getType());
     EXPECT_EQ(Call->getArgOperand(Idx)->getType(), Arg->getType());
     Idx++;
   }
 }
 
+TEST_F(ModuleWithFunctionTest, InvokeInst) {
+  BasicBlock *BB1 = BasicBlock::Create(Ctx, "", F);
+  BasicBlock *BB2 = BasicBlock::Create(Ctx, "", F);
+
+  Value *Args[] = {ConstantInt::get(Type::getInt8Ty(Ctx), 20),
+                   ConstantInt::get(Type::getInt32Ty(Ctx), 9999),
+                   ConstantInt::get(Type::getInt64Ty(Ctx), 42)};
+  std::unique_ptr<InvokeInst> Invoke(InvokeInst::Create(F, BB1, BB2, Args));
+
+  // Make sure iteration over invoke's arguments works as expected.
+  unsigned Idx = 0;
+  for (Value *Arg : Invoke->arg_operands()) {
+    EXPECT_EQ(FArgTypes[Idx], Arg->getType());
+    EXPECT_EQ(Invoke->getArgOperand(Idx)->getType(), Arg->getType());
+    Idx++;
+  }
+}
+
 TEST(InstructionsTest, BranchInst) {
   LLVMContext &C(getGlobalContext());