Add gtests

Added gtests for getVersion() and getId()

Resolves openbmc/openbmc#1276.

Change-Id: I10a824ae3da426e901defc34fa7f3c6c6a8496d3
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>

3 files changed, 100 insertions, 0 deletions

diff --git a/test/Makefile.am b/test/Makefile.am
new file mode 100755
index 000000000..cac8e378c
--- /dev/null
+++ b/test/Makefile.am
@@ -0,0 +1,16 @@
+AM_CPPFLAGS = -I$(top_srcdir)
+
+# gtest unit tests which run during a 'make check'
+check_PROGRAMS = utest
+
+# Run all 'check' test programs
+TESTS = $(check_PROGRAMS)
+
+# Build/add utest to test suite
+utest_CPPFLAGS = -Igtest $(GTEST_CPPFLAGS) $(AM_CPPFLAGS)
+utest_CXXFLAGS = $(PTHREAD_CFLAGS) $(PHOSPHOR_LOGGING_CFLAGS)
+utest_LDFLAGS = -lgtest_main -lgtest $(PTHREAD_LIBS) $(OESDK_TESTCASE_FLAGS) \
+	$(PHOSPHOR_LOGGING_LIBS) -lstdc++fs
+
+utest_SOURCES = utest.cpp
+utest_LDADD = $(top_builddir)/version_host_software_manager.o
diff --git a/test/README.md b/test/README.md
new file mode 100755
index 000000000..6e62971fe
--- /dev/null
+++ b/test/README.md
@@ -0,0 +1,20 @@
+Instructions on how to execute UTEST.
+
+* When using an SDK - make sure it has been built
+  for an x86 machine.
+
+- First, generate the configure script with a call
+  to ./bootstrap.sh.
+- Once configure script generated, configure with flags
+  "./configure ${CONFIGURE_FLAGS} --enable-oe-sdk"
+- Be sure to include --enable-oe-sdk or the tests
+  will not run properly.
+- Lastly "make check" will build the application
+  source along with unit tests.  Make check also
+  runs the unit tests automatically.
+
+* WHEN RUNNING UTEST remember to take advantage
+  of the gtest capabilities. "./utest --help"
+  - --gtest_repeat=[COUNT]
+  - --gtest_shuffle
+  - --gtest_random_seed=[NUMBER]
diff --git a/test/utest.cpp b/test/utest.cpp
new file mode 100644
index 000000000..4da45a5f4
--- /dev/null
+++ b/test/utest.cpp
@@ -0,0 +1,64 @@
+#include "version_host_software_manager.hpp"
+#include <gtest/gtest.h>
+#include <experimental/filesystem>
+#include <stdlib.h>
+#include <fstream>
+#include <iostream>
+#include <sstream>
+#include <string>
+
+using namespace openpower::software::manager;
+namespace fs = std::experimental::filesystem;
+
+
+class VersionTest : public testing::Test
+{
+    protected:
+
+        virtual void SetUp()
+        {
+            char versionDir[] = "./versionXXXXXX";
+            _directory = mkdtemp(versionDir);
+
+            if (_directory.empty())
+            {
+                throw std::bad_alloc();
+            }
+        }
+
+        virtual void TearDown()
+        {
+            fs::remove_all(_directory);
+        }
+
+        std::string _directory;
+};
+
+/** @brief Make sure we correctly get the version from getVersion()*/
+TEST_F(VersionTest, TestGetVersion)
+{
+    auto tocFilePath = _directory + "/" + "pnor.toc";
+    auto version = "test-version";
+
+    std::ofstream file;
+    file.open(tocFilePath, std::ofstream::out);
+    ASSERT_TRUE(file.is_open());
+
+    file << "version=" << version << std::endl;
+    file.close();
+
+    EXPECT_EQ(Version::getVersion(tocFilePath), version);
+}
+
+/** @brief Make sure we correctly get the Id from getId()*/
+TEST_F(VersionTest, TestGetId)
+{
+    std::stringstream hexId;
+    auto version = "test-id";
+
+    hexId << std::hex << ((std::hash<std::string> {}(
+                               version)) & 0xFFFFFFFF);
+
+    EXPECT_EQ(Version::getId(version), hexId.str());
+
+}