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POHow to run gtest using scons
 

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  1. POHow to run gtest using scons
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    <p>I have a precompiled version of gtest (I know Google advises against it, but that's how our project will use it), and I want to write a very simple test and build it using scons. Assume I have super simple test called test.cpp, and gtest is installed in /opt/gtest . I am not that great using Scons, and would like to know how my SConstruct should look like.</p> <pre><code>//test.cpp #include "gtest/gtest.h" TEST(MyTest, Test) { ASSERT_TRUE(true); } int main(int argc, char** argv) { ::testing::InitGoogleTest(&amp;argc, argv); return RUN_ALL_TESTS(); } </code></pre> <p>My current SConstruct looks like this (but does not work)</p> <pre><code>env = Environment() LIBS ='' common_libs = ['pthread', 'gtest'] env.Append( LIBS = common_libs ) Program('test.cpp', LIBS, LIBPATH='/opt/gtest/lib') </code></pre> <p>I get the following message when I run scons</p> <pre><code>scons: Reading SConscript files ... IndexError: list index out of range: File "/home/user/testing/SConstruct", line 8: Program('test.cpp', LIBS, LIBPATH='/opt/gtest/lib') File "/usr/lib/scons/SCons/Script/SConscript.py", line 614: return method(*args, **kw) File "/usr/lib/scons/SCons/Environment.py", line 258: return MethodWrapper.__call__(self, target, source, *args, **kw) File "/usr/lib/scons/SCons/Environment.py", line 222: return self.method(*nargs, **kwargs) File "/usr/lib/scons/SCons/Builder.py", line 632: return self._execute(env, target, source, OverrideWarner(kw), ekw) File "/usr/lib/scons/SCons/Builder.py", line 540: source = self.src_builder_sources(env, source, overwarn) File "/usr/lib/scons/SCons/Builder.py", line 736: s = self._adjustixes(s, None, src_suf)[0] </code></pre> <p>Thank you!</p> <p><em><strong>EDIT:</em></strong></p> <p>After changing </p> <pre><code>Program('test.cpp', LIBS, LIBPATH='/opt/gtest/lib') </code></pre> <p>to</p> <pre><code>Program('test', 'test.cpp', LIBS, LIBPATH='/opt/gtest/lib') </code></pre> <p>I get the following errors</p> <pre><code>scons: Reading SConscript files ... scons: done reading SConscript files. scons: Building targets ... g++ -o test test.o -L/opt/gtest/lib test.o: In function `MyTest_Test_Test::TestBody()': test.cpp:(.text+0x5f): undefined reference to `testing::internal::GetBoolAssertionFailureMessage(testing::AssertionResult const&amp;, char const*, char const*, char const*)' test.cpp:(.text+0x8c): undefined reference to `testing::internal::AssertHelper::AssertHelper(testing::TestPartResult::Type, char const*, int, char const*)' test.cpp:(.text+0x9f): undefined reference to `testing::internal::AssertHelper::operator=(testing::Message const&amp;) const' test.cpp:(.text+0xb2): undefined reference to `testing::internal::AssertHelper::~AssertHelper()' test.cpp:(.text+0xc6): undefined reference to `testing::internal::AssertHelper::~AssertHelper()' test.o: In function `main': test.cpp:(.text+0x16a): undefined reference to `testing::InitGoogleTest(int*, char**)' test.cpp:(.text+0x16f): undefined reference to `testing::UnitTest::GetInstance()' test.cpp:(.text+0x177): undefined reference to `testing::UnitTest::Run()' test.o: In function `__static_initialization_and_destruction_0(int, int)': test.cpp:(.text+0x1df): undefined reference to `testing::internal::GetTestTypeId()' test.cpp:(.text+0x20e): undefined reference to `testing::internal::MakeAndRegisterTestInfo(char const*, char const*, char const*, char const*, void const*, void (*)(), void (*)(), testing::internal::TestFactoryBase*)' test.o: In function `MyTest_Test_Test::MyTest_Test_Test()': test.cpp:(.text._ZN16MyTest_Test_TestC2Ev[_ZN16MyTest_Test_TestC5Ev]+0x14): undefined reference to `testing::Test::Test()' test.o: In function `testing::internal::scoped_ptr&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt;::reset(std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;*)': test.cpp:(.text._ZN7testing8internal10scoped_ptrISsE5resetEPSs[testing::internal::scoped_ptr&lt;std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt;::reset(std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;*)]+0x24): undefined reference to `testing::internal::IsTrue(bool)' test.o: In function `testing::internal::scoped_ptr&lt;std::basic_stringstream&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt;::reset(std::basic_stringstream&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;*)': test.cpp:(.text._ZN7testing8internal10scoped_ptrISt18basic_stringstreamIcSt11char_traitsIcESaIcEEE5resetEPS6_[testing::internal::scoped_ptr&lt;std::basic_stringstream&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; &gt;::reset(std::basic_stringstream&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;*)]+0x23): undefined reference to `testing::internal::IsTrue(bool)' test.o:(.rodata._ZTV16MyTest_Test_Test[vtable for MyTest_Test_Test]+0x20): undefined reference to `testing::Test::SetUp()' test.o:(.rodata._ZTV16MyTest_Test_Test[vtable for MyTest_Test_Test]+0x28): undefined reference to `testing::Test::TearDown()' test.o:(.rodata._ZTI16MyTest_Test_Test[typeinfo for MyTest_Test_Test]+0x10): undefined reference to `typeinfo for testing::Test' test.o: In function `MyTest_Test_Test::~MyTest_Test_Test()': test.cpp:(.text._ZN16MyTest_Test_TestD2Ev[_ZN16MyTest_Test_TestD5Ev]+0x1f): undefined reference to `testing::Test::~Test()' collect2: ld returned 1 exit status scons: *** [test] Error 1 scons: building terminated because of errors. </code></pre>
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    1. COis it able to compile? It seems that it may have trouble finding the header files.
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    2. COI added the output of running scons to my post. Thanks.
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      1. USdead_jake
    3. COIts the linking problem. The linker is not able to find libraries for gtest. As you can see the command line for the build(just after scons building targets) the library path is mentioned but its not linking to any library.
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