Add an invalid check

tests/fixtures/parquet/datacontract_invalid.yaml

@@ -0,0 +1,21 @@
+dataContractSpecification: 0.9.2
+id: orders-unit-test
+info:
+  title: Orders Unit Test
+  version: 1.0.0
+servers:
+  production:
+    type: local
+    path: ./fixtures/parquet/data/orders.parquet
+    format: parquet
+    dataProductId: orders
+    outputPortId: parquet
+models:
+  orders:
+    fields:
+      order_id:
+        type: date # this is not true
+        unique: true
+        required: true
+      some_extra_field: #does not exist
+        type: long

tests/test_test_parquet.py

@@ -27,3 +27,15 @@ def test_valid():
     assert run.result == "passed"
     assert len(run.checks) == 4
     assert all(check.result == "passed" for check in run.checks)
+
+
+def test_invalid():
+    data_contract = DataContract(
+        data_contract_file="fixtures/parquet/datacontract_invalid.yaml",
+    )
+    run = data_contract.test()
+    print(run.pretty())
+    assert run.result == "failed"
+    assert len(run.checks) == 6
+    assert any(check.result == "failed" for check in run.checks)
+    assert any(check.reason == "Type Mismatch, Expected Type: date; Actual Type: varchar" for check in run.checks)