clang-tools-extra/clangd/unittests/LoggerTests.cpp

   1 //===-- LoggerTests.cpp ---------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 #include "support/Logger.h"
   9 #include "llvm/Support/Errc.h"
  10 #include "llvm/Support/Error.h"
  11 #include "gmock/gmock.h"
  12 #include "gtest/gtest.h"
  13
  14 namespace clang {
  15 namespace clangd {
  16 namespace {
  17
  18 TEST(ErrorTest, Overloads) {
  19   EXPECT_EQ("foo", llvm::toString(error("foo")));
  20   // Inconvertible to error code when none is specified.
  21   // Don't actually try to convert, it'll crash.
  22   handleAllErrors(error("foo"), [&](const llvm::ErrorInfoBase &EI) {
  23     EXPECT_EQ(llvm::inconvertibleErrorCode(), EI.convertToErrorCode());
  24   });
  25
  26   EXPECT_EQ("foo 42", llvm::toString(error("foo {0}", 42)));
  27   handleAllErrors(error("foo {0}", 42), [&](const llvm::ErrorInfoBase &EI) {
  28     EXPECT_EQ(llvm::inconvertibleErrorCode(), EI.convertToErrorCode());
  29   });
  30
  31   EXPECT_EQ("foo", llvm::toString(error(llvm::errc::invalid_argument, "foo")));
  32   EXPECT_EQ(llvm::errc::invalid_argument,
  33             llvm::errorToErrorCode(error(llvm::errc::invalid_argument, "foo")));
  34
  35   EXPECT_EQ("foo 42",
  36             llvm::toString(error(llvm::errc::invalid_argument, "foo {0}", 42)));
  37   EXPECT_EQ(llvm::errc::invalid_argument,
  38             llvm::errorToErrorCode(
  39                 error(llvm::errc::invalid_argument, "foo {0}", 42)));
  40 }
  41
  42 TEST(ErrorTest, Lifetimes) {
  43   llvm::Optional<llvm::Error> Err;
  44   {
  45     // Check the error contains the value when error() was called.
  46     std::string S = "hello, world";
  47     Err = error("S={0}", llvm::StringRef(S));
  48     S = "garbage";
  49   }
  50   EXPECT_EQ("S=hello, world", llvm::toString(std::move(*Err)));
  51 }
  52
  53 TEST(ErrorTest, ConsumeError) {
  54   llvm::Error Foo = error("foo");
  55   llvm::Error Bar = error("bar: {0}", std::move(Foo));
  56   EXPECT_EQ("bar: foo", llvm::toString(std::move(Bar)));
  57   // No assert for unchecked Foo.
  58 }
  59
  60 } // namespace
  61 } // namespace clangd
  62 } // namespace clang