Lambda unit test infrastructure

Unit test infrastructure for testing GET and POST Lambdas

Lambdas/Lists/List/test/TestListGetter.java

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+import org.junit.Test;
+
+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 TestListGetter {
+
+    @Test
+    public void testListGetterValid() {
+        conductListGetterTest(false);
+    }
+
+    @Test
+    public void testListGetterError() {
+        conductListGetterTest(true);
+    }
+
+    public void conductListGetterTest(boolean shouldThrow) {
+        Integer listID = 1;
+        String name = "aname";
+        String owner = "anowner";
+        Timestamp lastUpdated = Timestamp.from(Instant.ofEpochMilli(1602192528688L));
+
+        Integer productID = 2;
+        Integer quantity = 3;
+        Timestamp addedDate = Timestamp.from(Instant.ofEpochMilli(1602192528689L));;
+        Boolean purchased = false;
+
+        ArrayList<Object> rsReturns = new ArrayList<>();
+        rsReturns.add(listID);
+        rsReturns.add(name);
+        rsReturns.add(owner);
+        rsReturns.add(lastUpdated);
+        rsReturns.add(productID);
+        rsReturns.add(quantity);
+        rsReturns.add(addedDate);
+        rsReturns.add(purchased);
+        StatementInjector injector = null;
+        try {
+            injector = new StatementInjector(null, rsReturns, shouldThrow);
+        } catch (SQLException throwables) {
+            throwables.printStackTrace();
+        }
+        ListGetter getter = new ListGetter(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() == List.class);
+            List listReturn = (List) conductReturn;
+            assert (listReturn.toString().equals("List{itemID=1, name='aname', owner='anowner', lastUpdated=1602192528688, entries=[ItemEntry{listID=1, productID=2, quantity=3, addedDate=1602192528689, purchased=false}]}"));
+        } catch (SQLException throwables) {
+            throwables.printStackTrace();
+            assert shouldThrow;
+        }
+    }
+}