Add test data covering various options in the spec

.github/workflows/scripts.yml

@@ -7,6 +7,32 @@ on:
   pull_request:
 
 jobs:
+  validate-examples:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install validator
+        run: |
+          cd validator/python
+          python -m pip install --no-binary geoparquet_validator .
+
+      - name: Run validator
+        run: |
+          for example in $(ls examples/*.parquet); do
+            echo $example;
+            geoparquet_validator $example || exit 1;
+          done
+          for example in $(ls test_data/*.parquet); do
+            echo $example;
+            geoparquet_validator $example || exit 1;
+          done
+
 
   test-json-metadata:
     runs-on: ubuntu-latest

test_data/data_crs_null.metadata.json

@@ -0,0 +1,13 @@
+{
+  "geo": {
+    "columns": {
+      "geometry": {
+        "crs": null,
+        "encoding": "WKB",
+        "geometry_type": "Unknown"
+      }
+    },
+    "primary_column": "geometry",
+    "version": "0.4.0"
+  }
+}

test_data/data_geometry_column_name.metadata.json

@@ -0,0 +1,12 @@
+{
+  "geo": {
+    "columns": {
+      "geom": {
+        "encoding": "WKB",
+        "geometry_type": "Unknown"
+      }
+    },
+    "primary_column": "geometry",
+    "version": "0.4.0"
+  }
+}

test_data/data_minimal.metadata.json

@@ -0,0 +1,12 @@
+{
+  "geo": {
+    "columns": {
+      "geometry": {
+        "encoding": "WKB",
+        "geometry_type": "Unknown"
+      }
+    },
+    "primary_column": "geometry",
+    "version": "0.4.0"
+  }
+}

test_data/data_orientation.metadata.json

@@ -0,0 +1,13 @@
+{
+  "geo": {
+    "columns": {
+      "geometry": {
+        "encoding": "WKB",
+        "geometry_type": "Unknown",
+        "orientation": "counterclockwise"
+      }
+    },
+    "primary_column": "geometry",
+    "version": "0.4.0"
+  }
+}

test_data/generate_test_data.py

@@ -35,6 +35,63 @@
 }
 
 
+## Various metadata variations
+
+# Minimum required metadata
+
+table = pa.table(
+    {"col": range(3), "geometry": to_wkb(from_wkt(["POINT (1 1)", "POINT (2 2)", "POINT (3 3)"]))}
+)
+metadata = copy.deepcopy(metadata_template)
+table = table.replace_schema_metadata({"geo": json.dumps(metadata)})
+pq.write_table(table, HERE / "data_minimal.parquet")
+
+
+# Geometry type
+
+table = pa.table(
+    {"col": range(3), "geometry": to_wkb(from_wkt(["POINT (1 1)", "POINT (2 2)", "POINT (3 3)"]))}
+)
+metadata = copy.deepcopy(metadata_template)
+metadata["columns"]["geometry"]["geometry_types"] = ["Point"]
+table = table.replace_schema_metadata({"geo": json.dumps(metadata)})
+pq.write_table(table, HERE / "data_geometry_type.parquet")
+
+
+# Geometry column name
+
+table = pa.table(
+    {"col": range(3), "geom": to_wkb(from_wkt(["POINT (1 1)", "POINT (2 2)", "POINT (3 3)"]))}
+)
+metadata = copy.deepcopy(metadata_template)
+metadata["primary_column"] = "geom"
+metadata["columns"]["geom"] = metadata["columns"].pop("geometry")
+table = table.replace_schema_metadata({"geo": json.dumps(metadata)})
+pq.write_table(table, HERE / "data_geometry_column_name.parquet")
+
+
+# CRS - explicit null
+
+table = pa.table(
+    {"col": range(3), "geometry": to_wkb(from_wkt(["POINT (1 1)", "POINT (2 2)", "POINT (3 3)"]))}
+)
+metadata = copy.deepcopy(metadata_template)
+metadata["columns"]["geometry"]["crs"] = None
+table = table.replace_schema_metadata({"geo": json.dumps(metadata)})
+pq.write_table(table, HERE / "data_crs_null.parquet")
+
+
+# Orientation
+
+table = pa.table(
+    {"col": range(3), "geometry": to_wkb(from_wkt(["POINT (1 1)", "POINT (2 2)", "POINT (3 3)"]))}
+)
+metadata = copy.deepcopy(metadata_template)
+metadata["columns"]["geometry"]["orientation"] = "counterclockwise"
+table = table.replace_schema_metadata({"geo": json.dumps(metadata)})
+pq.write_table(table, HERE / "data_orientation.parquet")
+
+
 ## Various geometry types with WKB and native (GeoArrow-based) encodings
 
 def write_encoding_files(geometries_wkt, geometries_geoarrow, geometry_type):