[FileCheck] Use ASSERT for fatal unit tests

Summary:
A number of EXPECT statements in FileCheck's unit tests are dependent
from results of other values being tested. This commit changes those
earlier test to use ASSERT instead of EXPECT to avoid cascade errors
when they are all related to the same issue.

Reviewers: jhenderson, chandlerc, jdenny, probinson, grimar, arichardson, rnk

Subscribers: JonChesterfield, rogfer01, hfinkel, kristina, rnk, tra, arichardson, grimar, dblaikie, probinson, llvm-commits, hiraditya

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64921

llvm-svn: 366862

1 files changed, 45 insertions, 43 deletions

diff --git a/llvm/unittests/Support/FileCheckTest.cpp b/llvm/unittests/Support/FileCheckTest.cpp
index 147ed68..d85690d 100644
--- a/llvm/unittests/Support/FileCheckTest.cpp
+++ b/llvm/unittests/Support/FileCheckTest.cpp
@@ -19,13 +19,13 @@ TEST_F(FileCheckTest, Literal) {
   // Eval returns the literal's value.
   FileCheckExpressionLiteral Ten(10);
   Expected<uint64_t> Value = Ten.eval();
-  EXPECT_TRUE(bool(Value));
+  ASSERT_TRUE(bool(Value));
   EXPECT_EQ(10U, *Value);
 
   // Max value can be correctly represented.
   FileCheckExpressionLiteral Max(std::numeric_limits<uint64_t>::max());
   Value = Max.eval();
-  EXPECT_TRUE(bool(Value));
+  ASSERT_TRUE(bool(Value));
   EXPECT_EQ(std::numeric_limits<uint64_t>::max(), *Value);
 }
 
@@ -68,7 +68,7 @@ TEST_F(FileCheckTest, NumericVariable) {
       FileCheckNumericVariableUse("FOO", &FooVar);
   EXPECT_FALSE(FooVar.getValue());
   Expected<uint64_t> EvalResult = FooVarUse.eval();
-  EXPECT_FALSE(EvalResult);
+  ASSERT_FALSE(EvalResult);
   expectUndefError("FOO", EvalResult.takeError());
 
   FooVar.setValue(42);
@@ -77,10 +77,10 @@ TEST_F(FileCheckTest, NumericVariable) {
   // return value set.
   EXPECT_TRUE(FooVar.isValueKnownAtMatchTime());
   Optional<uint64_t> Value = FooVar.getValue();
-  EXPECT_TRUE(bool(Value));
+  ASSERT_TRUE(bool(Value));
   EXPECT_EQ(42U, *Value);
   EvalResult = FooVarUse.eval();
-  EXPECT_TRUE(bool(EvalResult));
+  ASSERT_TRUE(bool(EvalResult));
   EXPECT_EQ(42U, *EvalResult);
 
   // Variable defined by numeric expression: isValueKnownAtMatchTime
@@ -95,11 +95,11 @@ TEST_F(FileCheckTest, NumericVariable) {
   FileCheckNumericVariable FoobarExprVar =
       FileCheckNumericVariable("FOOBAR", 2, &Binop);
   EXPECT_TRUE(FoobarExprVar.isValueKnownAtMatchTime());
-  EXPECT_FALSE(FoobarExprVar.getValue());
+  ASSERT_FALSE(FoobarExprVar.getValue());
   FileCheckNumericVariableUse FoobarExprVarUse =
       FileCheckNumericVariableUse("FOOBAR", &FoobarExprVar);
   EvalResult = FoobarExprVarUse.eval();
-  EXPECT_TRUE(bool(EvalResult));
+  ASSERT_TRUE(bool(EvalResult));
   EXPECT_EQ(43U, *EvalResult);
   EXPECT_TRUE(FoobarExprVar.getExpressionAST());
   FoobarExprVar.setValue(43);
@@ -115,10 +115,10 @@ TEST_F(FileCheckTest, NumericVariable) {
   EXPECT_FALSE(FooVar.getValue());
   EXPECT_FALSE(FoobarExprVar.getValue());
   EvalResult = FooVarUse.eval();
-  EXPECT_FALSE(EvalResult);
+  ASSERT_FALSE(EvalResult);
   expectUndefError("FOO", EvalResult.takeError());
   EvalResult = FoobarExprVarUse.eval();
-  EXPECT_FALSE(EvalResult);
+  ASSERT_FALSE(EvalResult);
   expectUndefError("FOOBAR", EvalResult.takeError());
 }
 
@@ -136,21 +136,21 @@ TEST_F(FileCheckTest, Binop) {
 
   // Defined variable: eval returns right value.
   Expected<uint64_t> Value = Binop.eval();
-  EXPECT_TRUE(bool(Value));
+  ASSERT_TRUE(bool(Value));
   EXPECT_EQ(60U, *Value);
 
   // 1 undefined variable: eval fails, error contains name of undefined
   // variable.
   FooVar.clearValue();
   Value = Binop.eval();
-  EXPECT_FALSE(Value);
+  ASSERT_FALSE(Value);
   expectUndefError("FOO", Value.takeError());
 
   // 2 undefined variables: eval fails, error contains names of all undefined
   // variables.
   BarVar.clearValue();
   Value = Binop.eval();
-  EXPECT_FALSE(Value);
+  ASSERT_FALSE(Value);
   expectUndefErrors({"FOO", "BAR"}, Value.takeError());
 }
 
@@ -180,21 +180,21 @@ TEST_F(FileCheckTest, ParseVar) {
   StringRef VarName = OrigVarName;
   Expected<FileCheckPattern::VariableProperties> ParsedVarResult =
       FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(ParsedVarResult->Name, OrigVarName);
   EXPECT_TRUE(VarName.empty());
   EXPECT_FALSE(ParsedVarResult->IsPseudo);
 
   VarName = OrigVarName = bufferize(SM, "$GoodGlobalVar");
   ParsedVarResult = FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(ParsedVarResult->Name, OrigVarName);
   EXPECT_TRUE(VarName.empty());
   EXPECT_FALSE(ParsedVarResult->IsPseudo);
 
   VarName = OrigVarName = bufferize(SM, "@GoodPseudoVar");
   ParsedVarResult = FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(ParsedVarResult->Name, OrigVarName);
   EXPECT_TRUE(VarName.empty());
   EXPECT_TRUE(ParsedVarResult->IsPseudo);
@@ -209,35 +209,35 @@ TEST_F(FileCheckTest, ParseVar) {
 
   VarName = OrigVarName = bufferize(SM, "B@dVar");
   ParsedVarResult = FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(VarName, OrigVarName.substr(1));
   EXPECT_EQ(ParsedVarResult->Name, "B");
   EXPECT_FALSE(ParsedVarResult->IsPseudo);
 
   VarName = OrigVarName = bufferize(SM, "B$dVar");
   ParsedVarResult = FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(VarName, OrigVarName.substr(1));
   EXPECT_EQ(ParsedVarResult->Name, "B");
   EXPECT_FALSE(ParsedVarResult->IsPseudo);
 
   VarName = bufferize(SM, "BadVar+");
   ParsedVarResult = FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(VarName, "+");
   EXPECT_EQ(ParsedVarResult->Name, "BadVar");
   EXPECT_FALSE(ParsedVarResult->IsPseudo);
 
   VarName = bufferize(SM, "BadVar-");
   ParsedVarResult = FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(VarName, "-");
   EXPECT_EQ(ParsedVarResult->Name, "BadVar");
   EXPECT_FALSE(ParsedVarResult->IsPseudo);
 
   VarName = bufferize(SM, "BadVar:");
   ParsedVarResult = FileCheckPattern::parseVariable(VarName, SM);
-  EXPECT_TRUE(bool(ParsedVarResult));
+  ASSERT_TRUE(bool(ParsedVarResult));
   EXPECT_EQ(VarName, ":");
   EXPECT_EQ(ParsedVarResult->Name, "BadVar");
   EXPECT_FALSE(ParsedVarResult->IsPseudo);
@@ -257,6 +257,8 @@ public:
     std::vector<std::string> GlobalDefines;
     GlobalDefines.emplace_back(std::string("#FOO=42"));
     GlobalDefines.emplace_back(std::string("BAR=BAZ"));
+    // An ASSERT_FALSE would make more sense but cannot be used in a
+    // constructor.
     EXPECT_FALSE(
         errorToBool(Context.defineCmdlineVariables(GlobalDefines, SM)));
     Context.createLineVariable();
@@ -334,13 +336,13 @@ TEST_F(FileCheckTest, ParseExpr) {
   // the same pattern object is used for the parsePatternExpect and
   // parseSubstExpect since no initNextPattern is called, thus appearing as
   // being on the same line from the pattern's point of view.
-  EXPECT_FALSE(Tester.parsePatternExpect("[[#LINE1VAR:FOO+1]]"));
+  ASSERT_FALSE(Tester.parsePatternExpect("[[#LINE1VAR:FOO+1]]"));
   EXPECT_FALSE(Tester.parseSubstExpect("LINE1VAR"));
 
   // Invalid use of variable defined on same line from input. As above, the
   // absence of a call to initNextPattern makes it appear to be on the same
   // line from the pattern's point of view.
-  EXPECT_FALSE(Tester.parsePatternExpect("[[#LINE2VAR:]]"));
+  ASSERT_FALSE(Tester.parsePatternExpect("[[#LINE2VAR:]]"));
   EXPECT_TRUE(Tester.parseSubstExpect("LINE2VAR"));
 
   // Unsupported operator.
@@ -441,7 +443,7 @@ TEST_F(FileCheckTest, Substitution) {
   FileCheckStringSubstitution StringSubstitution =
       FileCheckStringSubstitution(&Context, "VAR404", 42);
   Expected<std::string> SubstValue = StringSubstitution.getResult();
-  EXPECT_FALSE(bool(SubstValue));
+  ASSERT_FALSE(bool(SubstValue));
   expectUndefError("VAR404", SubstValue.takeError());
 
   // Substitutions of defined pseudo and non-pseudo numeric variables return
@@ -458,28 +460,28 @@ TEST_F(FileCheckTest, Substitution) {
   FileCheckNumericSubstitution SubstitutionN =
       FileCheckNumericSubstitution(&Context, "N", std::move(NVarUse), 30);
   SubstValue = SubstitutionLine.getResult();
-  EXPECT_TRUE(bool(SubstValue));
+  ASSERT_TRUE(bool(SubstValue));
   EXPECT_EQ("42", *SubstValue);
   SubstValue = SubstitutionN.getResult();
-  EXPECT_TRUE(bool(SubstValue));
+  ASSERT_TRUE(bool(SubstValue));
   EXPECT_EQ("10", *SubstValue);
 
   // Substitution of an undefined numeric variable fails, error holds name of
   // undefined variable.
   LineVar.clearValue();
   SubstValue = SubstitutionLine.getResult();
-  EXPECT_FALSE(bool(SubstValue));
+  ASSERT_FALSE(bool(SubstValue));
   expectUndefError("@LINE", SubstValue.takeError());
   NVar.clearValue();
   SubstValue = SubstitutionN.getResult();
-  EXPECT_FALSE(bool(SubstValue));
+  ASSERT_FALSE(bool(SubstValue));
   expectUndefError("N", SubstValue.takeError());
 
   // Substitution of a defined string variable returns the right value.
   FileCheckPattern P = FileCheckPattern(Check::CheckPlain, &Context, 1);
   StringSubstitution = FileCheckStringSubstitution(&Context, "FOO", 42);
   SubstValue = StringSubstitution.getResult();
-  EXPECT_TRUE(bool(SubstValue));
+  ASSERT_TRUE(bool(SubstValue));
   EXPECT_EQ("BAR", *SubstValue);
 }
 
@@ -538,7 +540,7 @@ TEST_F(FileCheckTest, FileCheckContext) {
   GlobalDefines.emplace_back(std::string("EmptyVar="));
   GlobalDefines.emplace_back(std::string("#LocalNumVar1=18"));
   GlobalDefines.emplace_back(std::string("#LocalNumVar2=LocalNumVar1+2"));
-  EXPECT_FALSE(errorToBool(Cxt.defineCmdlineVariables(GlobalDefines, SM)));
+  ASSERT_FALSE(errorToBool(Cxt.defineCmdlineVariables(GlobalDefines, SM)));
 
   // Check defined variables are present and undefined is absent.
   StringRef LocalVarStr = "LocalVar";
@@ -553,23 +555,23 @@ TEST_F(FileCheckTest, FileCheckContext) {
       P.parseNumericSubstitutionBlock(LocalNumVar1Ref, DefinedNumericVariable,
                                       /*IsLegacyLineExpr=*/false,
                                       /*LineNumber=*/1, &Cxt, SM);
-  EXPECT_TRUE(bool(LocalVar));
+  ASSERT_TRUE(bool(LocalVar));
   EXPECT_EQ(*LocalVar, "FOO");
   Expected<StringRef> EmptyVar = Cxt.getPatternVarValue(EmptyVarStr);
   Expected<StringRef> UnknownVar = Cxt.getPatternVarValue(UnknownVarStr);
-  EXPECT_TRUE(bool(ExpressionAST));
+  ASSERT_TRUE(bool(ExpressionAST));
   Expected<uint64_t> ExpressionVal = (*ExpressionAST)->eval();
-  EXPECT_TRUE(bool(ExpressionVal));
+  ASSERT_TRUE(bool(ExpressionVal));
   EXPECT_EQ(*ExpressionVal, 18U);
   ExpressionAST =
       P.parseNumericSubstitutionBlock(LocalNumVar2Ref, DefinedNumericVariable,
                                       /*IsLegacyLineExpr=*/false,
                                       /*LineNumber=*/1, &Cxt, SM);
-  EXPECT_TRUE(bool(ExpressionAST));
+  ASSERT_TRUE(bool(ExpressionAST));
   ExpressionVal = (*ExpressionAST)->eval();
-  EXPECT_TRUE(bool(ExpressionVal));
+  ASSERT_TRUE(bool(ExpressionVal));
   EXPECT_EQ(*ExpressionVal, 20U);
-  EXPECT_TRUE(bool(EmptyVar));
+  ASSERT_TRUE(bool(EmptyVar));
   EXPECT_EQ(*EmptyVar, "");
   EXPECT_TRUE(errorToBool(UnknownVar.takeError()));
 
@@ -586,13 +588,13 @@ TEST_F(FileCheckTest, FileCheckContext) {
   ExpressionAST = P.parseNumericSubstitutionBlock(
       LocalNumVar1Ref, DefinedNumericVariable, /*IsLegacyLineExpr=*/false,
       /*LineNumber=*/2, &Cxt, SM);
-  EXPECT_TRUE(bool(ExpressionAST));
+  ASSERT_TRUE(bool(ExpressionAST));
   ExpressionVal = (*ExpressionAST)->eval();
   EXPECT_TRUE(errorToBool(ExpressionVal.takeError()));
   ExpressionAST = P.parseNumericSubstitutionBlock(
       LocalNumVar2Ref, DefinedNumericVariable, /*IsLegacyLineExpr=*/false,
       /*LineNumber=*/2, &Cxt, SM);
-  EXPECT_TRUE(bool(ExpressionAST));
+  ASSERT_TRUE(bool(ExpressionAST));
   ExpressionVal = (*ExpressionAST)->eval();
   EXPECT_TRUE(errorToBool(ExpressionVal.takeError()));
   EmptyVar = Cxt.getPatternVarValue(EmptyVarStr);
@@ -604,19 +606,19 @@ TEST_F(FileCheckTest, FileCheckContext) {
   // Redefine global variables and check variables are defined again.
   GlobalDefines.emplace_back(std::string("$GlobalVar=BAR"));
   GlobalDefines.emplace_back(std::string("#$GlobalNumVar=36"));
-  EXPECT_FALSE(errorToBool(Cxt.defineCmdlineVariables(GlobalDefines, SM)));
+  ASSERT_FALSE(errorToBool(Cxt.defineCmdlineVariables(GlobalDefines, SM)));
   StringRef GlobalVarStr = "$GlobalVar";
   StringRef GlobalNumVarRef = bufferize(SM, "$GlobalNumVar");
   Expected<StringRef> GlobalVar = Cxt.getPatternVarValue(GlobalVarStr);
-  EXPECT_TRUE(bool(GlobalVar));
+  ASSERT_TRUE(bool(GlobalVar));
   EXPECT_EQ(*GlobalVar, "BAR");
   P = FileCheckPattern(Check::CheckPlain, &Cxt, 3);
   ExpressionAST = P.parseNumericSubstitutionBlock(
       GlobalNumVarRef, DefinedNumericVariable, /*IsLegacyLineExpr=*/false,
       /*LineNumber=*/3, &Cxt, SM);
-  EXPECT_TRUE(bool(ExpressionAST));
+  ASSERT_TRUE(bool(ExpressionAST));
   ExpressionVal = (*ExpressionAST)->eval();
-  EXPECT_TRUE(bool(ExpressionVal));
+  ASSERT_TRUE(bool(ExpressionVal));
   EXPECT_EQ(*ExpressionVal, 36U);
 
   // Clear local variables and check global variables remain defined.
@@ -626,9 +628,9 @@ TEST_F(FileCheckTest, FileCheckContext) {
   ExpressionAST = P.parseNumericSubstitutionBlock(
       GlobalNumVarRef, DefinedNumericVariable, /*IsLegacyLineExpr=*/false,
       /*LineNumber=*/4, &Cxt, SM);
-  EXPECT_TRUE(bool(ExpressionAST));
+  ASSERT_TRUE(bool(ExpressionAST));
   ExpressionVal = (*ExpressionAST)->eval();
-  EXPECT_TRUE(bool(ExpressionVal));
+  ASSERT_TRUE(bool(ExpressionVal));
   EXPECT_EQ(*ExpressionVal, 36U);
 }
 } // namespace