hdf5Write unittest

modules/c++/hdf5.lite/unittests/test_hdf5write.cpp

@@ -31,6 +31,8 @@
 
 #include "hdf5/lite/Write.h"
 #include "hdf5/lite/HDF5Exception.h"
+#include "hdf5/lite/Info.h"
+#include "hdf5/lite/Read.h"
 
 static std::filesystem::path find_unittest_file(const std::filesystem::path& name)
 {
@@ -41,12 +43,51 @@ static std::filesystem::path find_unittest_file(const std::filesystem::path& nam
 TEST_CASE(test_hdf5Create)
 {
     static const auto path_ = find_unittest_file("example.h5");
-    static const auto path = path_.parent_path() / "TEST_myfile_TMP.h5";
+    static const auto path = path_.parent_path() / "TEST_hdf5Create_TMP.h5";
 
     // https://www.mathworks.com/help/matlab/ref/h5write.html
     hdf5::lite::createFile<float>(path, "/DS1", {10, 20});
 }
 
+TEST_CASE(test_hdf5Write)
+{
+    static const auto path_ = find_unittest_file("example.h5");
+    static const auto path = path_.parent_path() / "TEST_hdf5Write_TMP.h5";
+
+    const types::RowCol<size_t> dims{10, 20};
+    std::vector<double> data_(dims.area());
+    const hdf5::lite::SpanRC<double> data(data_.data(), dims);
+    double d = 0.0;
+    for (size_t r = 0; r<dims.row; r++)
+    {
+        for (size_t c = 0; c < dims.col; c++)
+        {
+            data(r, c) = d++;
+        }    
+    }
+
+    // https://www.mathworks.com/help/matlab/ref/h5write.html
+    hdf5::lite::createFile(path, "/DS1", data);
+    hdf5::lite::writeFile(path, "/DS1", data);
+
+    // Be sure we can read the file just written
+    const auto info = hdf5::lite::dataSetInfo(path, "/DS1");
+    TEST_ASSERT_EQ(path.string(), info.filename);
+    TEST_ASSERT_EQ("DS1", info.name);
+    TEST_ASSERT(info.dataType.h5Class == hdf5::lite::Class::Float);
+
+    std::vector<double> result;
+    const auto rc = hdf5::lite::readFile(path, "/DS1", result);
+    TEST_ASSERT(rc.dims() == dims);
+    TEST_ASSERT_EQ(dims.area(), result.size());
+    for (size_t i = 0; i < result.size(); i++)
+    {
+        const auto expected = static_cast<double>(i);
+        TEST_ASSERT_ALMOST_EQ(result[i], expected);
+    }
+}
+
 TEST_MAIN(
     TEST_CHECK(test_hdf5Create);
+    TEST_CHECK(test_hdf5Write);
 )