Lambda unit test infrastructure

Unit test infrastructure for testing GET and POST Lambdas

Lambdas/Lists/Item/test/TestItemGetter.java

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+import org.junit.jupiter.api.Test;
+
+import java.math.BigDecimal;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+public class TestItemGetter {
+
+    @Test
+    public void testItemGetterValid() {
+        conductItemGetterTest(false);
+    }
+
+    @Test
+    public void testItemGetterError() {
+        conductItemGetterTest(true);
+    }
+
+    public void conductItemGetterTest(boolean shouldThrow) {
+        ArrayList<Object> rsReturns = new ArrayList<>();
+        rsReturns.add(1);//ProductID
+        rsReturns.add(2);//chainID
+        rsReturns.add("aupc");
+        rsReturns.add("adescription");
+        rsReturns.add(BigDecimal.valueOf(.03));//Price
+        rsReturns.add("animageurl");
+        rsReturns.add("adepartment");
+        rsReturns.add(Timestamp.from(Instant.ofEpochMilli(1602192528688L)));//retrievedDate
+        rsReturns.add(5); // fetchCounts
+        StatementInjector injector = null;
+        try {
+            injector = new StatementInjector(null, rsReturns, shouldThrow);
+        } catch (SQLException throwables) {
+            throwables.printStackTrace();
+        }
+        ItemGetter getter = new ItemGetter(injector, "id");
+        Map<String, Object> ignore = new HashMap<>();
+        HashMap<String, String> queryParams = TestInputUtils.addQueryParams(ignore);
+        queryParams.put("id", "1");
+        try {
+            Object conductReturn = getter.conductAction(TestInputUtils.addBody(ignore), queryParams, "cognitoID");
+            assert !shouldThrow;
+            assert (conductReturn.getClass() == Item.class);
+            Item itemReturn = (Item) conductReturn;
+            assert (itemReturn.toString().equals("Item{productID=1, chainID=2, upc='aupc', description='adescription', price=0.03, imageURL='animageurl', department='adepartment', retrievedDate=1602192528688, fetchCounts=5}"));
+        } catch (SQLException throwables) {
+            throwables.printStackTrace();
+            assert shouldThrow;
+        }
+    }
+}