[Lldb-commits] [lldb] r251681 - Added real editline tests.

Todd Fiala via lldb-commits lldb-commits at lists.llvm.org
Fri Oct 30 09:40:48 PDT 2015


> What are all these setenv lines for?

libedit requires a TERM to know how to deal with the screen.  We can't talk
to libedit if it can't figure out what kind of terminal it is working with.

> Another option is to use TEST_F instead of TEST(), and then declare a
class with Setup() and TearDown() methods, and do the setenv() in the setup
method.

I am planning on doing that.  I have another few tests I am writing.  I
have a "reduce duplication" XP style phase that will eliminate that.  Good
catch.  I should have done it at my second test.


On Thu, Oct 29, 2015 at 11:26 PM, Zachary Turner <zturner at google.com> wrote:

>
>
> On Thu, Oct 29, 2015 at 7:57 PM Todd Fiala via lldb-commits <
> lldb-commits at lists.llvm.org> wrote:
>
>> Author: tfiala
>> Date: Thu Oct 29 21:54:52 2015
>> New Revision: 251681
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=251681&view=rev
>> Log:
>> Added real editline tests.
>>
>> These are two simple tests that make sure single line and
>> multiline content are processed and received by Editline.cpp.
>>
>> Fancier tests to come...
>>
>> Modified:
>>     lldb/trunk/lldb.xcodeproj/project.pbxproj
>>     lldb/trunk/lldb.xcodeproj/xcshareddata/xcschemes/lldb-gtest.xcscheme
>>     lldb/trunk/source/Host/CMakeLists.txt
>>     lldb/trunk/unittests/Editline/EditlineTest.cpp
>>
>> Modified: lldb/trunk/lldb.xcodeproj/project.pbxproj
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/lldb.xcodeproj/project.pbxproj?rev=251681&r1=251680&r2=251681&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/lldb.xcodeproj/project.pbxproj (original)
>> +++ lldb/trunk/lldb.xcodeproj/project.pbxproj Thu Oct 29 21:54:52 2015
>> @@ -909,13 +909,6 @@
>>  /* End PBXBuildFile section */
>>
>>  /* Begin PBXContainerItemProxy section */
>> -               2326CF411BDD636100A5CEAC /* PBXContainerItemProxy */ = {
>> -                       isa = PBXContainerItemProxy;
>> -                       containerPortal = 08FB7793FE84155DC02AAC07 /*
>> Project object */;
>> -                       proxyType = 1;
>> -                       remoteGlobalIDString = 26680206115FD0ED008E1FE4;
>> -                       remoteInfo = LLDB;
>> -               };
>>                 235AFBC1199BC70700897A4B /* PBXContainerItemProxy */ = {
>>                         isa = PBXContainerItemProxy;
>>                         containerPortal = 08FB7793FE84155DC02AAC07 /*
>> Project object */;
>> @@ -937,6 +930,13 @@
>>                         remoteGlobalIDString = 456F67721AD46CE9002850C2;
>>                         remoteInfo = "debugserver-mini";
>>                 };
>> +               23AB8B6A1BDF513B008BF3B0 /* PBXContainerItemProxy */ = {
>> +                       isa = PBXContainerItemProxy;
>> +                       containerPortal = 08FB7793FE84155DC02AAC07 /*
>> Project object */;
>> +                       proxyType = 1;
>> +                       remoteGlobalIDString = 2689FFC913353D7A00698AC0;
>> +                       remoteInfo = "lldb-core";
>> +               };
>>                 262CFC7111A450CB00946C6C /* PBXContainerItemProxy */ = {
>>                         isa = PBXContainerItemProxy;
>>                         containerPortal = 265E9BE1115C2BAA00D0DCCB /*
>> debugserver.xcodeproj */;
>> @@ -5831,7 +5831,7 @@
>>                         buildRules = (
>>                         );
>>                         dependencies = (
>> -                               2326CF421BDD636100A5CEAC /*
>> PBXTargetDependency */,
>> +                               23AB8B6B1BDF513B008BF3B0 /*
>> PBXTargetDependency */,
>>                         );
>>                         name = "lldb-gtest";
>>                         productName = "lldb-gtest";
>> @@ -6965,11 +6965,6 @@
>>  /* End PBXSourcesBuildPhase section */
>>
>>  /* Begin PBXTargetDependency section */
>> -               2326CF421BDD636100A5CEAC /* PBXTargetDependency */ = {
>> -                       isa = PBXTargetDependency;
>> -                       target = 26680206115FD0ED008E1FE4 /* LLDB */;
>> -                       targetProxy = 2326CF411BDD636100A5CEAC /*
>> PBXContainerItemProxy */;
>> -               };
>>                 235AFBC2199BC70700897A4B /* PBXTargetDependency */ = {
>>                         isa = PBXTargetDependency;
>>                         target = 26F5C26910F3D9A4009D5894 /* lldb-tool */;
>> @@ -6980,6 +6975,11 @@
>>                         target = 235AFBB5199BC6AD00897A4B /* Linux */;
>>                         targetProxy = 235AFBC3199BC70B00897A4B /*
>> PBXContainerItemProxy */;
>>                 };
>> +               23AB8B6B1BDF513B008BF3B0 /* PBXTargetDependency */ = {
>> +                       isa = PBXTargetDependency;
>> +                       target = 2689FFC913353D7A00698AC0 /* lldb-core */;
>> +                       targetProxy = 23AB8B6A1BDF513B008BF3B0 /*
>> PBXContainerItemProxy */;
>> +               };
>>                 262CFC7211A450CB00946C6C /* PBXTargetDependency */ = {
>>                         isa = PBXTargetDependency;
>>                         name = debugserver;
>> @@ -7404,31 +7404,13 @@
>>                 239504D81BDD451400963CEA /* Debug */ = {
>>                         isa = XCBuildConfiguration;
>>                         buildSettings = {
>> -                               CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
>> -                               CLANG_ENABLE_MODULES = YES;
>> -                               CLANG_ENABLE_OBJC_ARC = YES;
>> -                               CLANG_WARN_DIRECT_OBJC_ISA_USAGE =
>> YES_ERROR;
>> -                               CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
>> -                               CODE_SIGN_IDENTITY = "-";
>> -                               ENABLE_TESTABILITY = YES;
>>                                 FRAMEWORK_SEARCH_PATHS = (
>>                                         "$(inherited)",
>>
>> "\"$(SYSTEM_LIBRARY_DIR)/PrivateFrameworks\"",
>>
>> "$(SYSTEM_LIBRARY_DIR)/Frameworks/CoreServices.framework/Frameworks",
>>                                 );
>> -                               GCC_C_LANGUAGE_STANDARD = gnu99;
>> -                               GCC_DYNAMIC_NO_PIC = NO;
>> -                               GCC_NO_COMMON_BLOCKS = YES;
>> -                               GCC_PREPROCESSOR_DEFINITIONS = (
>> -                                       "DEBUG=1",
>> -                                       "$(inherited)",
>> -                               );
>> -                               GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
>> -                               GCC_WARN_UNINITIALIZED_AUTOS =
>> YES_AGGRESSIVE;
>>                                 LLDB_GTESTS_CFLAGS = "-I
>> $(LLVM_SOURCE_DIR)/utils/unittest/googletest/include -I
>> $(LLVM_SOURCE_DIR)/include -I $(LLVM_BUILD_DIR)/x86_64/include -I include
>> -I source -I $(PYTHON_FRAMEWORK_PATH)/Headers";
>>                                 LLDB_GTESTS_LDFLAGS =
>> "$(LLVM_BUILD_DIR)/x86_64/$(LLVM_CONFIGURATION)/lib/libgtest.a -L
>> $(PYTHON_FRAMEWORK_PATH)/Versions/$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)/lib
>> -l python$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)";
>> -                               MACOSX_DEPLOYMENT_TARGET = 10.11;
>> -                               MTL_ENABLE_DEBUG_INFO = YES;
>>                                 OTHER_CFLAGS = (
>>                                         "-flimit-debug-info",
>>                                         "-Wparentheses",
>> @@ -7453,38 +7435,19 @@
>>                                         "$(LLDB_GTESTS_LDFLAGS)",
>>                                 );
>>                                 PRODUCT_NAME = "$(TARGET_NAME)";
>> -                               SDKROOT = macosx;
>>                         };
>>                         name = Debug;
>>                 };
>>                 239504D91BDD451400963CEA /* DebugClang */ = {
>>                         isa = XCBuildConfiguration;
>>                         buildSettings = {
>> -                               CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
>> -                               CLANG_ENABLE_MODULES = YES;
>> -                               CLANG_ENABLE_OBJC_ARC = YES;
>> -                               CLANG_WARN_DIRECT_OBJC_ISA_USAGE =
>> YES_ERROR;
>> -                               CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
>> -                               CODE_SIGN_IDENTITY = "-";
>> -                               ENABLE_TESTABILITY = YES;
>>                                 FRAMEWORK_SEARCH_PATHS = (
>>                                         "$(inherited)",
>>
>> "\"$(SYSTEM_LIBRARY_DIR)/PrivateFrameworks\"",
>>
>> "$(SYSTEM_LIBRARY_DIR)/Frameworks/CoreServices.framework/Frameworks",
>>                                 );
>> -                               GCC_C_LANGUAGE_STANDARD = gnu99;
>> -                               GCC_DYNAMIC_NO_PIC = NO;
>> -                               GCC_NO_COMMON_BLOCKS = YES;
>> -                               GCC_PREPROCESSOR_DEFINITIONS = (
>> -                                       "DEBUG=1",
>> -                                       "$(inherited)",
>> -                               );
>> -                               GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
>> -                               GCC_WARN_UNINITIALIZED_AUTOS =
>> YES_AGGRESSIVE;
>>                                 LLDB_GTESTS_CFLAGS = "-I
>> $(LLVM_SOURCE_DIR)/utils/unittest/googletest/include -I
>> $(LLVM_SOURCE_DIR)/include -I $(LLVM_BUILD_DIR)/x86_64/include -I include
>> -I source -I $(PYTHON_FRAMEWORK_PATH)/Headers";
>>                                 LLDB_GTESTS_LDFLAGS =
>> "$(LLVM_BUILD_DIR)/x86_64/$(LLVM_CONFIGURATION)/lib/libgtest.a -L
>> $(PYTHON_FRAMEWORK_PATH)/Versions/$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)/lib
>> -l python$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)";
>> -                               MACOSX_DEPLOYMENT_TARGET = 10.11;
>> -                               MTL_ENABLE_DEBUG_INFO = YES;
>>                                 OTHER_CFLAGS = (
>>                                         "-flimit-debug-info",
>>                                         "-Wparentheses",
>> @@ -7509,34 +7472,19 @@
>>                                         "$(LLDB_GTESTS_LDFLAGS)",
>>                                 );
>>                                 PRODUCT_NAME = "$(TARGET_NAME)";
>> -                               SDKROOT = macosx;
>>                         };
>>                         name = DebugClang;
>>                 };
>>                 239504DA1BDD451400963CEA /* Release */ = {
>>                         isa = XCBuildConfiguration;
>>                         buildSettings = {
>> -                               CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
>> -                               CLANG_ENABLE_MODULES = YES;
>> -                               CLANG_ENABLE_OBJC_ARC = YES;
>> -                               CLANG_WARN_DIRECT_OBJC_ISA_USAGE =
>> YES_ERROR;
>> -                               CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
>> -                               CODE_SIGN_IDENTITY = "-";
>> -                               DEBUG_INFORMATION_FORMAT =
>> "dwarf-with-dsym";
>> -                               ENABLE_NS_ASSERTIONS = NO;
>>                                 FRAMEWORK_SEARCH_PATHS = (
>>                                         "$(inherited)",
>>
>> "\"$(SYSTEM_LIBRARY_DIR)/PrivateFrameworks\"",
>>
>> "$(SYSTEM_LIBRARY_DIR)/Frameworks/CoreServices.framework/Frameworks",
>>                                 );
>> -                               GCC_C_LANGUAGE_STANDARD = gnu99;
>> -                               GCC_NO_COMMON_BLOCKS = YES;
>> -                               GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
>> -                               GCC_WARN_UNINITIALIZED_AUTOS =
>> YES_AGGRESSIVE;
>>                                 LLDB_GTESTS_CFLAGS = "-I
>> $(LLVM_SOURCE_DIR)/utils/unittest/googletest/include -I
>> $(LLVM_SOURCE_DIR)/include -I $(LLVM_BUILD_DIR)/x86_64/include -I include
>> -I source -I $(PYTHON_FRAMEWORK_PATH)/Headers";
>>                                 LLDB_GTESTS_LDFLAGS =
>> "$(LLVM_BUILD_DIR)/x86_64/$(LLVM_CONFIGURATION)/lib/libgtest.a -L
>> $(PYTHON_FRAMEWORK_PATH)/Versions/$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)/lib
>> -l python$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)";
>> -                               MACOSX_DEPLOYMENT_TARGET = 10.11;
>> -                               MTL_ENABLE_DEBUG_INFO = NO;
>>                                 OTHER_CFLAGS = (
>>                                         "-flimit-debug-info",
>>                                         "-Wparentheses",
>> @@ -7561,34 +7509,19 @@
>>                                         "$(LLDB_GTESTS_LDFLAGS)",
>>                                 );
>>                                 PRODUCT_NAME = "$(TARGET_NAME)";
>> -                               SDKROOT = macosx;
>>                         };
>>                         name = Release;
>>                 };
>>                 239504DB1BDD451400963CEA /* BuildAndIntegration */ = {
>>                         isa = XCBuildConfiguration;
>>                         buildSettings = {
>> -                               CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
>> -                               CLANG_ENABLE_MODULES = YES;
>> -                               CLANG_ENABLE_OBJC_ARC = YES;
>> -                               CLANG_WARN_DIRECT_OBJC_ISA_USAGE =
>> YES_ERROR;
>> -                               CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
>> -                               CODE_SIGN_IDENTITY = "-";
>> -                               DEBUG_INFORMATION_FORMAT =
>> "dwarf-with-dsym";
>> -                               ENABLE_NS_ASSERTIONS = NO;
>>                                 FRAMEWORK_SEARCH_PATHS = (
>>                                         "$(inherited)",
>>
>> "\"$(SYSTEM_LIBRARY_DIR)/PrivateFrameworks\"",
>>
>> "$(SYSTEM_LIBRARY_DIR)/Frameworks/CoreServices.framework/Frameworks",
>>                                 );
>> -                               GCC_C_LANGUAGE_STANDARD = gnu99;
>> -                               GCC_NO_COMMON_BLOCKS = YES;
>> -                               GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
>> -                               GCC_WARN_UNINITIALIZED_AUTOS =
>> YES_AGGRESSIVE;
>>                                 LLDB_GTESTS_CFLAGS = "-I
>> $(LLVM_SOURCE_DIR)/utils/unittest/googletest/include -I
>> $(LLVM_SOURCE_DIR)/include -I $(LLVM_BUILD_DIR)/x86_64/include -I include
>> -I source -I $(PYTHON_FRAMEWORK_PATH)/Headers";
>>                                 LLDB_GTESTS_LDFLAGS =
>> "$(LLVM_BUILD_DIR)/x86_64/$(LLVM_CONFIGURATION)/lib/libgtest.a -L
>> $(PYTHON_FRAMEWORK_PATH)/Versions/$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)/lib
>> -l python$(PYTHON_VERSION_MAJOR).$(PYTHON_VERSION_MINOR)";
>> -                               MACOSX_DEPLOYMENT_TARGET = 10.11;
>> -                               MTL_ENABLE_DEBUG_INFO = NO;
>>                                 OTHER_CFLAGS = (
>>                                         "-flimit-debug-info",
>>                                         "-Wparentheses",
>> @@ -7613,7 +7546,6 @@
>>                                         "$(LLDB_GTESTS_LDFLAGS)",
>>                                 );
>>                                 PRODUCT_NAME = "$(TARGET_NAME)";
>> -                               SDKROOT = macosx;
>>                         };
>>                         name = BuildAndIntegration;
>>                 };
>>
>> Modified:
>> lldb/trunk/lldb.xcodeproj/xcshareddata/xcschemes/lldb-gtest.xcscheme
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/lldb.xcodeproj/xcshareddata/xcschemes/lldb-gtest.xcscheme?rev=251681&r1=251680&r2=251681&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/lldb.xcodeproj/xcshareddata/xcschemes/lldb-gtest.xcscheme
>> (original)
>> +++ lldb/trunk/lldb.xcodeproj/xcshareddata/xcschemes/lldb-gtest.xcscheme
>> Thu Oct 29 21:54:52 2015
>> @@ -42,7 +42,7 @@
>>        </AdditionalOptions>
>>     </TestAction>
>>     <LaunchAction
>> -      buildConfiguration = "DebugClang"
>> +      buildConfiguration = "Debug"
>>        selectedDebuggerIdentifier =
>> "Xcode.DebuggerFoundation.Debugger.LLDB"
>>        selectedLauncherIdentifier =
>> "Xcode.DebuggerFoundation.Launcher.LLDB"
>>        launchStyle = "0"
>>
>> Modified: lldb/trunk/source/Host/CMakeLists.txt
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/CMakeLists.txt?rev=251681&r1=251680&r2=251681&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/CMakeLists.txt (original)
>> +++ lldb/trunk/source/Host/CMakeLists.txt Thu Oct 29 21:54:52 2015
>> @@ -170,6 +170,19 @@ if (${get_python_libdir})
>>    endif()
>>  endif()
>>
>> +if (${get_python_libdir})
>> +  # Call a python script to gather the arch-specific libdir for
>> +  # modules like the lldb module.
>> +  execute_process(
>> +    COMMAND ${PYTHON_EXECUTABLE}
>> ${CMAKE_CURRENT_SOURCE_DIR}/../../scripts/get_relative_lib_dir.py
>> +    RESULT_VARIABLE get_libdir_status
>> +    OUTPUT_VARIABLE relative_libdir
>> +    )
>> +  if (get_libdir_status EQUAL 0)
>> +    add_definitions(-DLLDB_PYTHON_RELATIVE_LIBDIR="${relative_libdir}")
>> +  endif()
>> +endif()
>> +
>>  add_lldb_library(lldbHost ${HOST_SOURCES})
>>
>>  if (CMAKE_SYSTEM_NAME MATCHES "NetBSD")
>>
>> Modified: lldb/trunk/unittests/Editline/EditlineTest.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/unittests/Editline/EditlineTest.cpp?rev=251681&r1=251680&r2=251681&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/unittests/Editline/EditlineTest.cpp (original)
>> +++ lldb/trunk/unittests/Editline/EditlineTest.cpp Thu Oct 29 21:54:52
>> 2015
>> @@ -7,9 +7,362 @@
>>  //
>>
>>  //===----------------------------------------------------------------------===//
>>
>> +#ifndef LLDB_DISABLE_LIBEDIT
>> +
>> +#define EDITLINE_TEST_DUMP_OUTPUT 0
>> +
>> +#include <stdio.h>
>> +#include <unistd.h>
>> +
>> +#include <memory>
>> +#include <thread>
>> +
>>  #include "gtest/gtest.h"
>>
>> -TEST(EditlineTest, BasicTest)
>> +#include "lldb/Core/Error.h"
>> +#include "lldb/Core/StringList.h"
>> +#include "lldb/Host/Editline.h"
>> +#include "lldb/Host/Pipe.h"
>> +#include "lldb/Utility/PseudoTerminal.h"
>> +
>> +namespace
>>  {
>> -    EXPECT_TRUE(true);
>> +    const size_t TIMEOUT_MILLIS = 5000;
>>  }
>> +
>> +class FilePointer
>> +{
>> +public:
>> +
>> +    FilePointer () = delete;
>> +
>> +    FilePointer (const FilePointer&) = delete;
>> +
>> +    FilePointer (FILE *file_p)
>> +    : _file_p (file_p)
>> +    {
>> +    }
>> +
>> +    ~FilePointer ()
>> +    {
>> +        if (_file_p != nullptr)
>> +        {
>> +            const int close_result = fclose (_file_p);
>> +            EXPECT_EQ(0, close_result);
>> +        }
>> +    }
>> +
>> +    operator FILE* ()
>> +    {
>> +        return _file_p;
>> +    }
>> +
>> +private:
>> +
>> +    FILE *_file_p;
>> +
>> +};
>> +
>> +/**
>> + Wraps an Editline class, providing a simple way to feed
>> + input (as if from the keyboard) and receive output from Editline.
>> + */
>> +class EditlineAdapter
>> +{
>> +public:
>> +
>> +    EditlineAdapter ();
>> +
>> +    void
>> +    CloseInput ();
>> +
>> +    bool
>> +    IsValid () const
>> +    {
>> +        return _editline_sp.get () != nullptr;
>> +    }
>> +
>> +    lldb_private::Editline&
>> +    GetEditline ()
>> +    {
>> +        return *_editline_sp;
>> +    }
>> +
>> +    bool
>> +    SendLine (const std::string &line);
>> +
>> +    bool
>> +    SendLines (const std::vector<std::string> &lines);
>> +
>> +    bool
>> +    GetLine (std::string &line, bool &interrupted, size_t
>> timeout_millis);
>> +
>> +    bool
>> +    GetLines (lldb_private::StringList &lines, bool &interrupted, size_t
>> timeout_millis);
>> +
>> +    void
>> +    ConsumeAllOutput ();
>> +
>> +private:
>> +
>> +    static bool
>> +    IsInputComplete (
>> +        lldb_private::Editline * editline,
>> +        lldb_private::StringList & lines,
>> +        void * baton);
>> +
>> +    std::unique_ptr<lldb_private::Editline> _editline_sp;
>> +
>> +    lldb_utility::PseudoTerminal _pty;
>> +    int _pty_master_fd;
>> +    int _pty_slave_fd;
>> +
>> +    std::unique_ptr<FilePointer> _el_slave_file;
>> +};
>> +
>> +EditlineAdapter::EditlineAdapter () :
>> +    _editline_sp (),
>> +    _pty (),
>> +    _pty_master_fd (-1),
>> +    _pty_slave_fd (-1),
>> +    _el_slave_file ()
>> +{
>> +    lldb_private::Error error;
>> +
>> +    // Open the first master pty available.
>> +    char error_string[256];
>> +    error_string[0] = '\0';
>> +    if (!_pty.OpenFirstAvailableMaster (O_RDWR, error_string, sizeof
>> (error_string)))
>> +    {
>> +        fprintf(stderr, "failed to open first available master pty:
>> '%s'\n", error_string);
>> +        return;
>> +    }
>> +
>> +    // Grab the master fd.  This is a file descriptor we will:
>> +    // (1) write to when we want to send input to editline.
>> +    // (2) read from when we want to see what editline sends back.
>> +    _pty_master_fd = _pty.GetMasterFileDescriptor();
>> +
>> +    // Open the corresponding slave pty.
>> +    if (!_pty.OpenSlave (O_RDWR, error_string, sizeof (error_string)))
>> +    {
>> +        fprintf(stderr, "failed to open slave pty: '%s'\n",
>> error_string);
>> +        return;
>> +    }
>> +    _pty_slave_fd = _pty.GetSlaveFileDescriptor();
>> +
>> +    _el_slave_file.reset (new FilePointer (fdopen (_pty_slave_fd,
>> "rw")));
>> +    EXPECT_FALSE (nullptr == *_el_slave_file);
>> +    if (*_el_slave_file == nullptr)
>> +        return;
>> +
>> +    // Create an Editline instance.
>> +    _editline_sp.reset (new lldb_private::Editline("gtest editor",
>> *_el_slave_file, *_el_slave_file, *_el_slave_file, false));
>> +    _editline_sp->SetPrompt ("> ");
>> +
>> +    // Hookup our input complete callback.
>> +    _editline_sp->SetIsInputCompleteCallback(IsInputComplete, this);
>> +}
>> +
>> +void
>> +EditlineAdapter::CloseInput ()
>> +{
>> +    if (_el_slave_file != nullptr)
>> +        _el_slave_file.reset (nullptr);
>> +}
>> +
>> +bool
>> +EditlineAdapter::SendLine (const std::string &line)
>> +{
>> +    // Ensure we're valid before proceeding.
>> +    if (!IsValid ())
>> +        return false;
>> +
>> +    // Write the line out to the pipe connected to editline's input.
>> +    ssize_t input_bytes_written =
>> +        ::write (_pty_master_fd,
>> +                 line.c_str(),
>> +                 line.length() * sizeof (std::string::value_type));
>> +
>> +    const char *eoln = "\n";
>> +    const size_t eoln_length = strlen(eoln);
>> +    input_bytes_written =
>> +        ::write (_pty_master_fd,
>> +                 eoln,
>> +                 eoln_length * sizeof (char));
>> +
>> +    EXPECT_EQ (eoln_length * sizeof (char), input_bytes_written);
>> +    return eoln_length * sizeof (char) == input_bytes_written;
>> +}
>> +
>> +bool
>> +EditlineAdapter::SendLines (const std::vector<std::string> &lines)
>> +{
>> +    for (auto &line : lines)
>> +    {
>> +#if EDITLINE_TEST_DUMP_OUTPUT
>> +        printf ("<stdin> sending line \"%s\"\n", line.c_str());
>> +#endif
>> +        if (!SendLine (line))
>> +            return false;
>> +    }
>> +    return true;
>> +}
>> +
>> +// We ignore the timeout for now.
>> +bool
>> +EditlineAdapter::GetLine (std::string &line, bool &interrupted, size_t
>> /* timeout_millis */)
>> +{
>> +    // Ensure we're valid before proceeding.
>> +    if (!IsValid ())
>> +        return false;
>> +
>> +    _editline_sp->GetLine (line, interrupted);
>> +    return true;
>> +}
>> +
>> +bool
>> +EditlineAdapter::GetLines (lldb_private::StringList &lines, bool
>> &interrupted, size_t /* timeout_millis */)
>> +{
>> +    // Ensure we're valid before proceeding.
>> +    if (!IsValid ())
>> +        return false;
>> +
>> +    _editline_sp->GetLines (1, lines, interrupted);
>> +    return true;
>> +}
>> +
>> +bool
>> +EditlineAdapter::IsInputComplete (
>> +        lldb_private::Editline * editline,
>> +        lldb_private::StringList & lines,
>> +        void * baton)
>> +{
>> +    // We'll call ourselves complete if we've received a balanced set of
>> braces.
>> +    int start_block_count = 0;
>> +    int brace_balance = 0;
>> +
>> +    for (size_t i = 0; i < lines.GetSize (); ++i)
>> +    {
>> +        for (auto ch : lines[i])
>> +        {
>> +            if (ch == '{')
>> +            {
>> +                ++start_block_count;
>> +                ++brace_balance;
>> +            }
>> +            else if (ch == '}')
>> +                --brace_balance;
>> +        }
>> +    }
>> +
>> +    return (start_block_count > 0) && (brace_balance == 0);
>> +}
>> +
>> +void
>> +EditlineAdapter::ConsumeAllOutput ()
>> +{
>> +    FilePointer output_file (fdopen (_pty_master_fd, "r"));
>> +
>> +    int ch;
>> +    while ((ch = fgetc(output_file)) != EOF)
>> +    {
>> +#if EDITLINE_TEST_DUMP_OUTPUT
>> +        char display_str[] = { 0, 0, 0 };
>> +        switch (ch)
>> +        {
>> +            case '\t':
>> +                display_str[0] = '\\';
>> +                display_str[1] = 't';
>> +                break;
>> +            case '\n':
>> +                display_str[0] = '\\';
>> +                display_str[1] = 'n';
>> +                break;
>> +            case '\r':
>> +                display_str[0] = '\\';
>> +                display_str[1] = 'r';
>> +                break;
>> +            default:
>> +                display_str[0] = ch;
>> +                break;
>> +        }
>> +        printf ("<stdout> 0x%02x (%03d) (%s)\n", ch, ch, display_str);
>> +        // putc(ch, stdout);
>> +#endif
>> +    }
>> +}
>>
> This strikes me as a little odd.  What's this for?  Should a unittest
> really have debug printfs?
>
>
>> +
>> +TEST (EditlineTest, EditlineReceivesSingleLineText)
>> +{
>> +    setenv ("TERM", "vt100", 1);
>>
> What are all these setenv lines for?  Another option is to use TEST_F
> instead of TEST(), and then declare a class with Setup() and TearDown()
> methods, and do the setenv() in the setup method.  Then this environment
> variable will be set in every test run.  That said, it still feels a little
> dirty to have the test muck with environment variables.  How does Editline
> use this?
>



-- 
-Todd
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