1 files changed, 39 insertions, 0 deletions
diff --git a/test/unit/test_io.cpp b/test/unit/test_io.cpp
index 581083b3..767c39e9 100644
--- a/test/unit/test_io.cpp
+++ b/test/unit/test_io.cpp
@@ -2061,6 +2061,45 @@ TEST(wkt_parse, vertcrs_WKT1_GDAL_minimum) {
 
 // ---------------------------------------------------------------------------
 
+TEST(wkt_parse, VERTCS_WKT1_ESRI) {
+    auto wkt = "VERTCS[\"EGM2008_Geoid\",VDATUM[\"EGM2008_Geoid\"],"
+               "PARAMETER[\"Vertical_Shift\",0.0],"
+               "PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]";
+
+    auto obj = WKTParser().createFromWKT(wkt);
+    auto crs = nn_dynamic_pointer_cast<VerticalCRS>(obj);
+    ASSERT_TRUE(crs != nullptr);
+    EXPECT_EQ(crs->nameStr(), "EGM2008_Geoid");
+
+    auto datum = crs->datum();
+    EXPECT_EQ(datum->nameStr(), "EGM2008_Geoid");
+
+    auto cs = crs->coordinateSystem();
+    ASSERT_EQ(cs->axisList().size(), 1U);
+    EXPECT_EQ(cs->axisList()[0]->direction(), AxisDirection::UP);
+
+    EXPECT_EQ(WKTParser().guessDialect(wkt),
+              WKTParser::WKTGuessedDialect::WKT1_ESRI);
+}
+
+// ---------------------------------------------------------------------------
+
+TEST(wkt_parse, VERTCS_WKT1_ESRI_down) {
+    auto wkt = "VERTCS[\"Caspian\",VDATUM[\"Caspian_Sea\"],"
+               "PARAMETER[\"Vertical_Shift\",0.0],"
+               "PARAMETER[\"Direction\",-1.0],UNIT[\"Meter\",1.0]]";
+
+    auto obj = WKTParser().createFromWKT(wkt);
+    auto crs = nn_dynamic_pointer_cast<VerticalCRS>(obj);
+    ASSERT_TRUE(crs != nullptr);
+
+    auto cs = crs->coordinateSystem();
+    ASSERT_EQ(cs->axisList().size(), 1U);
+    EXPECT_EQ(cs->axisList()[0]->direction(), AxisDirection::DOWN);
+}
+
+// ---------------------------------------------------------------------------
+
 TEST(wkt_parse, vertcrs_WKT1_LAS_ftUS) {
     auto wkt = "VERT_CS[\"NAVD88 - Geoid03 (Feet)\","
                "    VERT_DATUM[\"unknown\",2005],"