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Added unit test for StreamTee 

Reviewers: davide

Reviewed By: davide

Subscribers: davide, mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D49708

llvm-svn: 337778
This commit is contained in:
Raphael Isemann 2018-07-24 00:01:32 +00:00
parent 8adf7ac5c1
commit 6188a42592
3 changed files with 202 additions and 0 deletions
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4
lldb/lldb.xcodeproj/project.pbxproj
View File

@ -867,6 +867,7 @@
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AFC2DCF91E6E318000283714 /* StreamGDBRemote.cpp in Sources */ = {isa = PBXBuildFile; fileRef = AFC2DCF81E6E318000283714 /* StreamGDBRemote.cpp */; };
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33E5E8471A674FB60024ED68 /* StringConvert.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 33E5E8411A672A240024ED68 /* StringConvert.cpp */; };
2689011113353E8200698AC0 /* StringExtractor.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 2660D9F611922A1300958FBD /* StringExtractor.cpp */; };
2689011213353E8200698AC0 /* StringExtractorGDBRemote.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 2676A093119C93C8008A98EF /* StringExtractorGDBRemote.cpp */; };
@ -2885,6 +2886,7 @@
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26764CA41E48F566008D3573 /* StreamTee.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = StreamTee.h; path = include/lldb/Utility/StreamTee.h; sourceTree = "<group>"; };
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@ -3495,6 +3497,7 @@
2321F9421BDD343A00BA9A93 /* Utility */ = {
isa = PBXGroup;
children = (
58EAC73D2106A0740029571E /* StreamTeeTest.cpp */,
7F94D7172040A13A006EE3EA /* CleanUpTest.cpp */,
23E2E5161D903689006F38BB /* ArchSpecTest.cpp */,
9A3D43C81F3150D200EB767C /* ConstStringTest.cpp */,
@ -7426,6 +7429,7 @@
23CB15371D66DA9300EDDDE1 /* PythonTestSuite.cpp in Sources */,
23E2E5321D903832006F38BB /* BreakpointIDTest.cpp in Sources */,
4CEC86A7204738EB009B37B1 /* TestPPC64InstEmulation.cpp in Sources */,
58EAC73F2106A07B0029571E /* StreamTeeTest.cpp in Sources */,
23CB15381D66DA9300EDDDE1 /* PythonExceptionStateTests.cpp in Sources */,
9A3D43D81F3151C400EB767C /* NameMatchesTest.cpp in Sources */,
23CB15391D66DA9300EDDDE1 /* DataExtractorTest.cpp in Sources */,

1
lldb/unittests/Utility/CMakeLists.txt
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@ -13,6 +13,7 @@ add_lldb_unittest(UtilityTests
LogTest.cpp
NameMatchesTest.cpp
StatusTest.cpp
StreamTeeTest.cpp
StringExtractorTest.cpp
StructuredDataTest.cpp
TildeExpressionResolverTest.cpp

197
lldb/unittests/Utility/StreamTeeTest.cpp Normal file
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@ -0,0 +1,197 @@
//===-- StreamTeeTest.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Utility/StreamTee.h"
#include "lldb/Utility/StreamString.h"
#include "gtest/gtest.h"
using namespace lldb_private;
TEST(StreamTeeTest, DefaultConstructor) {
// Test the default constructor.
StreamTee tee;
ASSERT_EQ(0U, tee.GetNumStreams());
}
TEST(StreamTeeTest, Constructor1Stream) {
// Test the constructor for a single stream.
lldb::StreamSP s1(std::make_shared<StreamString>());
StreamTee tee(s1);
ASSERT_EQ(1U, tee.GetNumStreams());
EXPECT_EQ(s1, tee.GetStreamAtIndex(0U));
}
TEST(StreamTeeTest, Constructor2Streams) {
// Test the constructor for two streams.
lldb::StreamSP s1(std::make_shared<StreamString>());
lldb::StreamSP s2(std::make_shared<StreamString>());
StreamTee tee(s1, s2);
ASSERT_EQ(2U, tee.GetNumStreams());
EXPECT_EQ(s1, tee.GetStreamAtIndex(0U));
EXPECT_EQ(s2, tee.GetStreamAtIndex(1U));
}
TEST(StreamTeeTest, CopyConstructor) {
// Test the copy constructor.
lldb::StreamSP s1(std::make_shared<StreamString>());
lldb::StreamSP s2(std::make_shared<StreamString>());
StreamTee tee1(s1, s2);
StreamTee tee2(tee1);
ASSERT_EQ(2U, tee2.GetNumStreams());
EXPECT_EQ(s1, tee2.GetStreamAtIndex(0U));
EXPECT_EQ(s2, tee2.GetStreamAtIndex(1U));
}
TEST(StreamTeeTest, Assignment) {
// Test the assignment of StreamTee.
lldb::StreamSP s1(std::make_shared<StreamString>());
lldb::StreamSP s2(std::make_shared<StreamString>());
StreamTee tee1(s1, s2);
StreamTee tee2 = tee1;
ASSERT_EQ(2U, tee2.GetNumStreams());
EXPECT_EQ(s1, tee2.GetStreamAtIndex(0U));
EXPECT_EQ(s2, tee2.GetStreamAtIndex(1U));
}
TEST(StreamTeeTest, Write) {
// Test that write is sent out to all children.
auto ss1 = new StreamString();
auto ss2 = new StreamString();
lldb::StreamSP s1(ss1);
lldb::StreamSP s2(ss2);
StreamTee tee(s1, s2);
tee << "foo";
tee.Flush();
ASSERT_EQ(2U, tee.GetNumStreams());
EXPECT_EQ("foo", ss1->GetString().str());
EXPECT_EQ("foo", ss2->GetString().str());
tee << "bar";
tee.Flush();
EXPECT_EQ("foobar", ss1->GetString().str());
EXPECT_EQ("foobar", ss2->GetString().str());
}
namespace {
struct FlushTestStream : public Stream {
unsigned m_flush_count = false;
void Flush() override {
++m_flush_count;
}
size_t Write(const void *src, size_t src_len) override { return src_len; }
};
}
TEST(StreamTeeTest, Flush) {
// Check that Flush is distributed to all streams.
auto fs1 = new FlushTestStream();
auto fs2 = new FlushTestStream();
lldb::StreamSP s1(fs1);
lldb::StreamSP s2(fs2);
StreamTee tee(s1, s2);
tee << "foo";
tee.Flush();
ASSERT_EQ(2U, tee.GetNumStreams());
EXPECT_EQ(1U, fs1->m_flush_count);
EXPECT_EQ(1U, fs2->m_flush_count);
tee << "bar";
tee.Flush();
EXPECT_EQ(2U, fs1->m_flush_count);
EXPECT_EQ(2U, fs2->m_flush_count);
}
TEST(StreamTeeTest, AppendStream) {
// Append new streams to our StreamTee.
auto ss1 = new StreamString();
auto ss2 = new StreamString();
lldb::StreamSP s1(ss1);
lldb::StreamSP s2(ss2);
StreamTee tee;
ASSERT_EQ(0U, tee.GetNumStreams());
tee.AppendStream(s1);
ASSERT_EQ(1U, tee.GetNumStreams());
EXPECT_EQ(s1, tee.GetStreamAtIndex(0U));
tee.AppendStream(s2);
ASSERT_EQ(2U, tee.GetNumStreams());
EXPECT_EQ(s1, tee.GetStreamAtIndex(0U));
EXPECT_EQ(s2, tee.GetStreamAtIndex(1U));
}
TEST(StreamTeeTest, GetStreamAtIndexOutOfBounds) {
// The index we check for is not in the bounds of the StreamTee.
lldb::StreamSP s1(std::make_shared<StreamString>());
StreamTee tee(s1);
ASSERT_EQ(1U, tee.GetNumStreams());
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(1));
}
TEST(StreamTeeTest, GetStreamAtIndexOutOfBoundsEmpty) {
// Same as above, but with an empty StreamTee.
StreamTee tee;
ASSERT_EQ(0U, tee.GetNumStreams());
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(0U));
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(1U));
}
TEST(StreamTeeTest, SetStreamAtIndexOverwrite) {
// We overwrite an existing stream at a given index.
lldb::StreamSP s1(std::make_shared<StreamString>());
StreamTee tee(s1);
ASSERT_EQ(1U, tee.GetNumStreams());
EXPECT_EQ(s1, tee.GetStreamAtIndex(0U));
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(1U));
lldb::StreamSP s2(std::make_shared<StreamString>());
tee.SetStreamAtIndex(0U, s2);
EXPECT_EQ(1U, tee.GetNumStreams());
EXPECT_EQ(s2, tee.GetStreamAtIndex(0U));
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(1));
}
TEST(StreamTeeTest, SetStreamAtIndexOutOfBounds) {
// We place a new stream out of the bounds of the current StreamTee.
lldb::StreamSP s1(std::make_shared<StreamString>());
StreamTee tee(s1);
ASSERT_EQ(1U, tee.GetNumStreams());
EXPECT_EQ(s1, tee.GetStreamAtIndex(0U));
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(1U));
// Place a new stream out of bounds of the current array. The StreamTee should
// resize itself until it can contain this index.
lldb::StreamSP s2(std::make_shared<StreamString>());
tee.SetStreamAtIndex(4U, s2);
// Check that the vector has been resized.
EXPECT_EQ(5U, tee.GetNumStreams());
// Is our stream at the right place?
EXPECT_EQ(s2, tee.GetStreamAtIndex(4U));
// Existing stream should still be there.
EXPECT_EQ(s1, tee.GetStreamAtIndex(0U));
// Other elements are all invalid StreamSPs.
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(1U));
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(2U));
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(3U));
EXPECT_EQ(lldb::StreamSP(), tee.GetStreamAtIndex(5U));
}