fix:dev:NEZ-11 Adding UT for NEZ-11

core/src/test/java/org/apache/calcite/test/LatticeTest.java

@@ -529,6 +529,62 @@ private void check(int n) throws IOException {
     // TODO
   }
 
+  /** Test case for
+   * <a href="https://issues.apache.org/jira/browse/CALCITE-787">[CALCITE-787]
+   * Wrong assignment of star table to Materialized views</a> */
+  @Test public void testOneLatticeOneMV() {
+    final AtomicInteger counter = new AtomicInteger();
+    final Class<JdbcTest.EmpDeptTableFactory> clazz =
+            JdbcTest.EmpDeptTableFactory.class;
+
+    final String mv = "       materializations: [\n"
+            + "         {\n"
+            + "           table: \"m0\",\n"
+            + "           view: \"m0v\",\n"
+            + "           sql: \"select * from \\\"foodmart\\\".\\\"sales_fact_1997\\\" where \\\"product_id\\\" = 10\" "
+            + "         }\n"
+            + "       ]\n";
+
+    final String model =
+            ""
+                    + "{\n"
+                    + "  version: '1.0',\n"
+                    + "   schemas: [\n"
+                    + JdbcTest.FOODMART_SCHEMA
+                    + ",\n"
+                    + "     {\n"
+                    + "       name: 'adhoc',\n"
+                    + "       tables: [\n"
+                    + "         {\n"
+                    + "           name: 'EMPLOYEES',\n"
+                    + "           type: 'custom',\n"
+                    + "           factory: '"
+                    + clazz.getName()
+                    + "',\n"
+                    + "           operand: {'foo': true, 'bar': 345}\n"
+                    + "         }\n"
+                    + "       ],\n"
+                    + "       lattices: " + "[" + INVENTORY_LATTICE
+                    + "       ]\n"
+                    + "     },\n"
+                    + "     {\n"
+                    + "       name: 'mat',\n"
+                    + mv
+                    + "     }\n"
+                    + "   ]\n"
+                    + "}";
+
+    CalciteAssert.model(model)
+            .withDefaultSchema("foodmart")
+            .query("select * from \"foodmart\".\"sales_fact_1997\" where \"product_id\" = 10")
+            .enableMaterializations(true)
+            .substitutionMatches(
+                    CalciteAssert.checkRel(
+                            "EnumerableTableScan(table=[[mat, m0]])\n",
+                            counter));
+    assertThat(counter.intValue(), equalTo(1));
+  }
+
   private CalciteAssert.AssertThat foodmartModel(String... extras) {
     return modelWithLattice("star",
         "select 1 from \"foodmart\".\"sales_fact_1997\" as \"s\"\n"