added the example code from issue doctest#436

CMakeLists.txt

@@ -84,6 +84,7 @@ if(MAIN_PROJECT AND DOCTEST_WITH_TESTS)
     if(NOT DEFINED ENV{CODE_COVERAGE})
         add_subdirectory(examples/exe_with_static_libs)
         add_subdirectory(examples/executable_dll_and_plugin)
+        add_subdirectory(examples/combining_the_same_tests_built_differently_in_multiple_shared_objects)
         add_subdirectory(scripts/playground)
         add_subdirectory(examples/mpi)
     endif()

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/CMakeLists.txt

@@ -0,0 +1,24 @@
+# for more information about this example refer to the GitHub issue: https://github.com/onqtam/doctest/issues/436
+
+add_library(default SHARED default.cpp)
+target_link_libraries(default PUBLIC doctest)
+set_target_properties(default PROPERTIES CXX_VISIBILITY_PRESET hidden)
+
+add_library(return42 SHARED return42.cpp)
+target_link_libraries(return42 PUBLIC doctest)
+set_target_properties(return42 PROPERTIES CXX_VISIBILITY_PRESET hidden)
+
+add_executable(same_tests_multiple_configurations main.cpp)
+target_link_libraries(same_tests_multiple_configurations PUBLIC default return42 doctest)
+
+
+# create the test runner, to which all other targets will link to
+add_library(test_runner SHARED test_runner.cpp)
+target_link_libraries(test_runner PUBLIC doctest)
+
+# link all targets to the test runner
+target_link_libraries(same_tests_multiple_configurations PUBLIC test_runner)
+target_link_libraries(default PUBLIC test_runner)
+target_link_libraries(return42 PUBLIC test_runner)
+
+doctest_add_test(NAME same_tests_multiple_configurations COMMAND $<TARGET_FILE:same_tests_multiple_configurations> --no-version)

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/default.cpp

@@ -0,0 +1,6 @@
+#define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
+#include "doctest/doctest.h"
+
+#include "foo.h"
+
+DOCTEST_SYMBOL_EXPORT void default_cpp_force_link() {}

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/foo.h

@@ -0,0 +1,42 @@
+#pragma once
+#include "doctest/doctest.h"
+#include <type_traits>
+
+DOCTEST_GCC_SUPPRESS_WARNING("-Wmissing-declarations")
+
+#ifdef RETURN_42
+#define TEST_LABEL "[return42] "
+#else
+#define TEST_LABEL "[default] "
+#endif
+
+int bar() {
+#ifdef RETURN_42
+    return 42;
+#else
+    return 11;
+#endif
+}
+
+#ifdef DOCTEST_LIBRARY_INCLUDED
+
+#ifdef RETURN_42
+TEST_CASE(TEST_LABEL "bartest"){
+    INFO("Running " TEST_LABEL "bartest"); MESSAGE("");
+    CHECK_EQ(42, bar());
+}
+#endif
+
+#ifndef RETURN_42
+TEST_CASE(TEST_LABEL "bartest"){
+    INFO("Running " TEST_LABEL "bartest"); MESSAGE("");
+    CHECK_EQ(11, bar());
+}
+#endif
+
+TEST_CASE(TEST_LABEL "commontest"){
+    INFO("Running " TEST_LABEL "commontest"); MESSAGE("");
+    auto x = bar();
+    CHECK(std::is_same<decltype(x), int>::value);
+}
+#endif // DOCTEST_LIBRARY_INCLUDED

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/main.cpp

@@ -0,0 +1,25 @@
+#define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
+#define DOCTEST_CONFIG_IMPLEMENT
+#include "doctest/doctest.h"
+
+DOCTEST_SYMBOL_IMPORT void default_cpp_force_link();
+DOCTEST_SYMBOL_IMPORT void return42_cpp_force_link();
+
+TEST_CASE("main") { MESSAGE("hello from <main.cpp>"); }
+
+int main(int argc, char** argv) {
+
+    default_cpp_force_link();
+    return42_cpp_force_link();
+
+    doctest::Context context(argc, argv);
+    int res = context.run();
+
+    if(context.shouldExit()) // important - query flags (and --exit) rely on the user doing this
+        return res;          // propagate the result of the tests
+
+    int client_stuff_return_code = 0;
+    // your program - if the testing framework is integrated in your production code
+
+    return res + client_stuff_return_code; // the result from doctest is propagated here as well
+}

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/return42.cpp

@@ -0,0 +1,7 @@
+#define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
+#include "doctest/doctest.h"
+
+#define RETURN_42
+#include "foo.h"
+
+DOCTEST_SYMBOL_EXPORT void return42_cpp_force_link() {}

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/test_output/same_tests_multiple_configurations.txt

@@ -0,0 +1,45 @@
+[doctest] run with "--help" for options
+===============================================================================
+foo.h(0):
+TEST CASE:  [return42] bartest
+
+foo.h(0): MESSAGE: 
+  logged: Running [return42] bartest
+
+===============================================================================
+foo.h(0):
+TEST CASE:  [default] bartest
+
+foo.h(0): MESSAGE: 
+  logged: Running [default] bartest
+
+===============================================================================
+foo.h(0):
+TEST CASE:  [default] commontest
+
+foo.h(0): MESSAGE: 
+  logged: Running [default] commontest
+
+===============================================================================
+foo.h(0):
+TEST CASE:  [return42] commontest
+
+foo.h(0): MESSAGE: 
+  logged: Running [return42] commontest
+
+===============================================================================
+main.cpp(0):
+TEST CASE:  main
+
+main.cpp(0): MESSAGE: hello from <main.cpp>
+
+===============================================================================
+test_runner.cpp(0):
+TEST CASE:  test_runner
+
+test_runner.cpp(0): MESSAGE: hello from <test_runner.cpp>
+
+===============================================================================
+[doctest] test cases: 6 | 6 passed | 0 failed | 0 skipped
+[doctest] assertions: 4 | 4 passed | 0 failed |
+[doctest] Status: SUCCESS!

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/test_output/same_tests_multiple_configurations_junit.txt

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuites>
+  <testsuite name="same_tests_multiple_configurations" errors="0" failures="0" tests="4">
+    <testcase classname="foo.h" name="[return42] bartest" status="run"/>
+    <testcase classname="foo.h" name="[default] bartest" status="run"/>
+    <testcase classname="foo.h" name="[default] commontest" status="run"/>
+    <testcase classname="foo.h" name="[return42] commontest" status="run"/>
+    <testcase classname="main.cpp" name="main" status="run"/>
+    <testcase classname="test_runner.cpp" name="test_runner" status="run"/>
+  </testsuite>
+</testsuites>

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/test_output/same_tests_multiple_configurations_xml.txt

@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<doctest binary="same_tests_multiple_configurations">
+  <Options order_by="file" rand_seed="0" first="0" last="4294967295" abort_after="0" subcase_filter_levels="2147483647" case_sensitive="false" no_throw="false" no_skip="false"/>
+  <TestSuite>
+    <TestCase name="[return42] bartest" filename="foo.h" line="0">
+      <Message type="WARNING" filename="foo.h" line="0">
+        <Text/>
+        <Info>
+          Running [return42] bartest
+        </Info>
+      </Message>
+      <OverallResultsAsserts successes="1" failures="0"/>
+    </TestCase>
+    <TestCase name="[default] bartest" filename="foo.h" line="0">
+      <Message type="WARNING" filename="foo.h" line="0">
+        <Text/>
+        <Info>
+          Running [default] bartest
+        </Info>
+      </Message>
+      <OverallResultsAsserts successes="1" failures="0"/>
+    </TestCase>
+    <TestCase name="[default] commontest" filename="foo.h" line="0">
+      <Message type="WARNING" filename="foo.h" line="0">
+        <Text/>
+        <Info>
+          Running [default] commontest
+        </Info>
+      </Message>
+      <OverallResultsAsserts successes="1" failures="0"/>
+    </TestCase>
+    <TestCase name="[return42] commontest" filename="foo.h" line="0">
+      <Message type="WARNING" filename="foo.h" line="0">
+        <Text/>
+        <Info>
+          Running [return42] commontest
+        </Info>
+      </Message>
+      <OverallResultsAsserts successes="1" failures="0"/>
+    </TestCase>
+    <TestCase name="main" filename="main.cpp" line="0">
+      <Message type="WARNING" filename="main.cpp" line="0">
+        <Text>
+          hello from &lt;main.cpp>
+        </Text>
+      </Message>
+      <OverallResultsAsserts successes="0" failures="0"/>
+    </TestCase>
+    <TestCase name="test_runner" filename="test_runner.cpp" line="0">
+      <Message type="WARNING" filename="test_runner.cpp" line="0">
+        <Text>
+          hello from &lt;test_runner.cpp>
+        </Text>
+      </Message>
+      <OverallResultsAsserts successes="0" failures="0"/>
+    </TestCase>
+  </TestSuite>
+  <OverallResultsAsserts successes="4" failures="0"/>
+  <OverallResultsTestCases successes="6" failures="0" skipped="0"/>
+</doctest>

examples/combining_the_same_tests_built_differently_in_multiple_shared_objects/test_runner.cpp

@@ -0,0 +1,5 @@
+#define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
+#define DOCTEST_CONFIG_IMPLEMENT
+#include "doctest/doctest.h"
+
+TEST_CASE("test_runner") { MESSAGE("hello from <test_runner.cpp>"); }