PEL: Add PEL section header structure

A PEL is made up of sections, and every section has an 8B
section header.  This commit adds a SectionHeader structure
that will represent that header.  It will then be included in
all upcoming PEL sections.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Ia5356560f49707e21aebca28f4a0b525aa24158d

2 files changed, 49 insertions, 1 deletions

diff --git a/test/openpower-pels/Makefile.include b/test/openpower-pels/Makefile.include
index a68b229..07e596d 100644
--- a/test/openpower-pels/Makefile.include
+++ b/test/openpower-pels/Makefile.include
@@ -3,6 +3,7 @@ TESTS += $(check_PROGRAMS)
 check_PROGRAMS += \
 	additional_data_test \
 	bcd_time_test \
+	section_header_test \
 	stream_test
 
 additional_data_test_SOURCES = %reldir%/additional_data_test.cpp
@@ -24,4 +25,11 @@ bcd_time_test_CXXFLAGS = $(test_cxxflags)
 bcd_time_test_LDADD = \
 	$(test_ldadd) \
 	$(top_builddir)/extensions/openpower-pels/bcd_time.o
-bcd_time_test_LDFLAGS = $(test_ldflags)
\ No newline at end of file
+bcd_time_test_LDFLAGS = $(test_ldflags)
+
+section_header_test_SOURCES = \
+	%reldir%/section_header_test.cpp
+section_header_test_CPPFLAGS = $(test_cppflags)
+section_header_test_CXXFLAGS = $(test_cxxflags)
+section_header_test_LDADD = $(test_ldadd)
+section_header_test_LDFLAGS = $(test_ldflags)
\ No newline at end of file
diff --git a/test/openpower-pels/section_header_test.cpp b/test/openpower-pels/section_header_test.cpp
new file mode 100644
index 0000000..2d5827c
--- /dev/null
+++ b/test/openpower-pels/section_header_test.cpp
@@ -0,0 +1,40 @@
+
+#include "extensions/openpower-pels/section_header.hpp"
+
+#include <gtest/gtest.h>
+
+using namespace openpower::pels;
+
+TEST(SectionHeaderTest, SizeTest)
+{
+    EXPECT_EQ(SectionHeader::flattenedSize(), 8);
+}
+
+TEST(SectionHeaderTest, UnflattenTest)
+{
+    std::vector<uint8_t> data{0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88};
+    Stream reader{data};
+    SectionHeader header;
+
+    reader >> header;
+
+    EXPECT_EQ(header.id, 0x1122);
+    EXPECT_EQ(header.size, 0x3344);
+    EXPECT_EQ(header.version, 0x55);
+    EXPECT_EQ(header.subType, 0x66);
+    EXPECT_EQ(header.componentID, 0x7788);
+}
+
+TEST(SectionHeaderTest, FlattenTest)
+{
+    SectionHeader header{0xAABB, 0xCCDD, 0xEE, 0xFF, 0xA0A0};
+
+    std::vector<uint8_t> data;
+    Stream writer{data};
+
+    writer << header;
+
+    std::vector<uint8_t> expected{0xAA, 0xBB, 0xCC, 0xDD,
+                                  0xEE, 0xFF, 0xA0, 0xA0};
+    EXPECT_EQ(data, expected);
+}