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llvm-mirror/unittests/Support/SourceMgrTest.cpp
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo 
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

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//===- unittests/Support/SourceMgrTest.cpp - SourceMgr tests --------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
class SourceMgrTest : public testing::Test {
public:
SourceMgr SM;
unsigned MainBufferID;
std::string Output;
void setMainBuffer(StringRef Text, StringRef BufferName) {
std::unique_ptr<MemoryBuffer> MainBuffer =
MemoryBuffer::getMemBuffer(Text, BufferName);
MainBufferID = SM.AddNewSourceBuffer(std::move(MainBuffer), llvm::SMLoc());
}
SMLoc getLoc(unsigned Offset) {
return SMLoc::getFromPointer(
SM.getMemoryBuffer(MainBufferID)->getBufferStart() + Offset);
}
SMRange getRange(unsigned Offset, unsigned Length) {
return SMRange(getLoc(Offset), getLoc(Offset + Length));
}
void printMessage(SMLoc Loc, SourceMgr::DiagKind Kind,
const Twine &Msg, ArrayRef<SMRange> Ranges,
ArrayRef<SMFixIt> FixIts) {
raw_string_ostream OS(Output);
SM.PrintMessage(OS, Loc, Kind, Msg, Ranges, FixIts);
}
};
} // unnamed namespace
TEST_F(SourceMgrTest, BasicError) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:5: error: message\n"
"aaa bbb\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, BasicWarning) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Warning, "message", None, None);
EXPECT_EQ("file.in:1:5: warning: message\n"
"aaa bbb\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, BasicRemark) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Remark, "message", None, None);
EXPECT_EQ("file.in:1:5: remark: message\n"
"aaa bbb\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, BasicNote) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Note, "message", None, None);
EXPECT_EQ("file.in:1:5: note: message\n"
"aaa bbb\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEndOfLine) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(6), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:7: error: message\n"
"aaa bbb\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtNewline) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(7), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:8: error: message\n"
"aaa bbb\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEmptyBuffer) {
setMainBuffer("", "file.in");
printMessage(getLoc(0), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:1: error: message\n"
"\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, LocationJustOnSoleNewline) {
setMainBuffer("\n", "file.in");
printMessage(getLoc(0), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:1: error: message\n"
"\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, LocationJustAfterSoleNewline) {
setMainBuffer("\n", "file.in");
printMessage(getLoc(1), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:2:1: error: message\n"
"\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, LocationJustAfterNonNewline) {
setMainBuffer("123", "file.in");
printMessage(getLoc(3), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:4: error: message\n"
"123\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationOnFirstLineOfMultiline) {
setMainBuffer("1234\n6789\n", "file.in");
printMessage(getLoc(3), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:4: error: message\n"
"1234\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationOnEOLOfFirstLineOfMultiline) {
setMainBuffer("1234\n6789\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:1:5: error: message\n"
"1234\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationOnSecondLineOfMultiline) {
setMainBuffer("1234\n6789\n", "file.in");
printMessage(getLoc(5), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:2:1: error: message\n"
"6789\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, LocationOnSecondLineOfMultilineNoSecondEOL) {
setMainBuffer("1234\n6789", "file.in");
printMessage(getLoc(5), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:2:1: error: message\n"
"6789\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, LocationOnEOLOfSecondSecondLineOfMultiline) {
setMainBuffer("1234\n6789\n", "file.in");
printMessage(getLoc(9), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:2:5: error: message\n"
"6789\n"
" ^\n",
Output);
}
#define STRING_LITERAL_253_BYTES \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n1234567890\n" \
"1234567890\n"
//===----------------------------------------------------------------------===//
// 255-byte buffer tests
//===----------------------------------------------------------------------===//
TEST_F(SourceMgrTest, LocationBeforeEndOf255ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"12" // + 2 = 255 bytes
, "file.in");
printMessage(getLoc(253), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:1: error: message\n"
"12\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEndOf255ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"12" // + 2 = 255 bytes
, "file.in");
printMessage(getLoc(254), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:2: error: message\n"
"12\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationPastEndOf255ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"12" // + 2 = 255 bytes
, "file.in");
printMessage(getLoc(255), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:3: error: message\n"
"12\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationBeforeEndOf255ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"1\n" // + 2 = 255 bytes
, "file.in");
printMessage(getLoc(253), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:1: error: message\n"
"1\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEndOf255ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"1\n" // + 2 = 255 bytes
, "file.in");
printMessage(getLoc(254), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:2: error: message\n"
"1\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationPastEndOf255ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"1\n" // + 2 = 255 bytes
, "file.in");
printMessage(getLoc(255), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:25:1: error: message\n"
"\n"
"^\n",
Output);
}
//===----------------------------------------------------------------------===//
// 256-byte buffer tests
//===----------------------------------------------------------------------===//
TEST_F(SourceMgrTest, LocationBeforeEndOf256ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"123" // + 3 = 256 bytes
, "file.in");
printMessage(getLoc(254), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:2: error: message\n"
"123\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEndOf256ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"123" // + 3 = 256 bytes
, "file.in");
printMessage(getLoc(255), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:3: error: message\n"
"123\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationPastEndOf256ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"123" // + 3 = 256 bytes
, "file.in");
printMessage(getLoc(256), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:4: error: message\n"
"123\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationBeforeEndOf256ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"12\n" // + 3 = 256 bytes
, "file.in");
printMessage(getLoc(254), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:2: error: message\n"
"12\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEndOf256ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"12\n" // + 3 = 256 bytes
, "file.in");
printMessage(getLoc(255), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:3: error: message\n"
"12\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationPastEndOf256ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"12\n" // + 3 = 256 bytes
, "file.in");
printMessage(getLoc(256), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:25:1: error: message\n"
"\n"
"^\n",
Output);
}
//===----------------------------------------------------------------------===//
// 257-byte buffer tests
//===----------------------------------------------------------------------===//
TEST_F(SourceMgrTest, LocationBeforeEndOf257ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"1234" // + 4 = 257 bytes
, "file.in");
printMessage(getLoc(255), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:3: error: message\n"
"1234\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEndOf257ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"1234" // + 4 = 257 bytes
, "file.in");
printMessage(getLoc(256), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:4: error: message\n"
"1234\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationPastEndOf257ByteBuffer) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"1234" // + 4 = 257 bytes
, "file.in");
printMessage(getLoc(257), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:5: error: message\n"
"1234\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationBeforeEndOf257ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"123\n" // + 4 = 257 bytes
, "file.in");
printMessage(getLoc(255), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:3: error: message\n"
"123\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationAtEndOf257ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"123\n" // + 4 = 257 bytes
, "file.in");
printMessage(getLoc(256), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:24:4: error: message\n"
"123\n"
" ^\n",
Output);
}
TEST_F(SourceMgrTest, LocationPastEndOf257ByteBufferEndingInNewline) {
setMainBuffer(STRING_LITERAL_253_BYTES // first 253 bytes
"123\n" // + 4 = 257 bytes
, "file.in");
printMessage(getLoc(257), SourceMgr::DK_Error, "message", None, None);
EXPECT_EQ("file.in:25:1: error: message\n"
"\n"
"^\n",
Output);
}
TEST_F(SourceMgrTest, BasicRange) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(4, 3), None);
EXPECT_EQ("file.in:1:5: error: message\n"
"aaa bbb\n"
" ^~~\n",
Output);
}
TEST_F(SourceMgrTest, RangeWithTab) {
setMainBuffer("aaa\tbbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(3, 3), None);
EXPECT_EQ("file.in:1:5: error: message\n"
"aaa bbb\n"
" ~~~~~^~\n",
Output);
}
TEST_F(SourceMgrTest, MultiLineRange) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(4, 7), None);
EXPECT_EQ("file.in:1:5: error: message\n"
"aaa bbb\n"
" ^~~\n",
Output);
}
TEST_F(SourceMgrTest, MultipleRanges) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
SMRange Ranges[] = { getRange(0, 3), getRange(4, 3) };
printMessage(getLoc(4), SourceMgr::DK_Error, "message", Ranges, None);
EXPECT_EQ("file.in:1:5: error: message\n"
"aaa bbb\n"
"~~~ ^~~\n",
Output);
}
TEST_F(SourceMgrTest, OverlappingRanges) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
SMRange Ranges[] = { getRange(0, 3), getRange(2, 4) };
printMessage(getLoc(4), SourceMgr::DK_Error, "message", Ranges, None);
EXPECT_EQ("file.in:1:5: error: message\n"
"aaa bbb\n"
"~~~~^~\n",
Output);
}
TEST_F(SourceMgrTest, BasicFixit) {
setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
printMessage(getLoc(4), SourceMgr::DK_Error, "message", None,
makeArrayRef(SMFixIt(getRange(4, 3), "zzz")));
EXPECT_EQ("file.in:1:5: error: message\n"
"aaa bbb\n"
" ^~~\n"
" zzz\n",
Output);
}
TEST_F(SourceMgrTest, FixitForTab) {
setMainBuffer("aaa\tbbb\nccc ddd\n", "file.in");
printMessage(getLoc(3), SourceMgr::DK_Error, "message", None,
makeArrayRef(SMFixIt(getRange(3, 1), "zzz")));
EXPECT_EQ("file.in:1:4: error: message\n"
"aaa bbb\n"
" ^^^^^\n"
" zzz\n",
Output);
}
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