[ONOS-3892,3895,3882,3883,3896]Unit test of yang container, list, leaf, leaf-list parser
Change-Id: Iae040d9d354e012584db8adc0aa7ff1ea4c099a0
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MinElementsListenerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MinElementsListenerTest.java
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+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.parser.impl.listeners;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+import org.junit.rules.ExpectedException;
+import org.onosproject.yangutils.datamodel.YangLeafList;
+import org.onosproject.yangutils.datamodel.YangModule;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangNodeType;
+import org.onosproject.yangutils.datamodel.YangList;
+import org.onosproject.yangutils.parser.exceptions.ParserException;
+import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
+
+import java.io.IOException;
+import java.util.ListIterator;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.core.Is.is;
+
+/**
+ * Test cases for testing min-elements listener.
+ */
+public class MinElementsListenerTest {
+
+ @Rule
+ public ExpectedException thrown = ExpectedException.none();
+
+ private final YangUtilsParserManager manager = new YangUtilsParserManager();
+
+ /**
+ * Checks min-elements as sub-statements of leaf-list.
+ */
+ @Test
+ public void processLeafListSubStatementMinElements() throws IOException, ParserException {
+
+ YangNode node = manager.getDataModel("src/test/resources/LeafListSubStatementMinElements.yang");
+
+ // Check whether the data model tree returned is of type module.
+ assertThat((node instanceof YangModule), is(true));
+
+ // Check whether the node type is set properly to module.
+ assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+
+ // Check whether the module name is set correctly.
+ YangModule yangNode = (YangModule) node;
+ assertThat(yangNode.getName(), is("Test"));
+
+ ListIterator<YangLeafList> leafListIterator = yangNode.getListOfLeafList().listIterator();
+ YangLeafList leafListInfo = leafListIterator.next();
+
+ assertThat(leafListInfo.getLeafName(), is("invalid-interval"));
+ assertThat(leafListInfo.getMinElements(), is(3));
+ }
+
+ /**
+ * Checks min-elements as sub-statements of list.
+ */
+ @Test
+ public void processListSubStatementMinElements() throws IOException, ParserException {
+
+ YangNode node = manager.getDataModel("src/test/resources/ListSubStatementMinElements.yang");
+
+ assertThat((node instanceof YangModule), is(true));
+
+ // Check whether the node type is set properly to module.
+ assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+
+ // Check whether the module name is set correctly.
+ YangModule yangNode = (YangModule) node;
+ assertThat(yangNode.getName(), is("Test"));
+
+ // Check whether the list is child of module
+ YangList yangList = (YangList) yangNode.getChild();
+ assertThat(yangList.getName(), is("valid"));
+ assertThat(yangList.getMinElements(), is(3));
+ }
+
+ /**
+ * Checks whether exception is thrown when invalid min-elements keyword
+ * is given as input.
+ */
+ @Test
+ public void processMinElementsInvalidKeyword() throws IOException, ParserException {
+ thrown.expect(ParserException.class);
+ thrown.expectMessage("extraneous input 'min-element' expecting {'config', 'description', 'if-feature'," +
+ " 'max-elements', 'min-elements', 'must', 'ordered-by', 'reference', 'status', 'type', 'units'," +
+ " 'when', '}'}");
+ YangNode node = manager.getDataModel("src/test/resources/MinElementsInvalidKeyword.yang");
+ }
+
+ /**
+ * Checks whether exception is thrown when invalid min-elements value
+ * is given as input.
+ */
+ @Test
+ public void processMinElementsInvalidValue() throws IOException, ParserException {
+ thrown.expect(ParserException.class);
+ thrown.expectMessage("mismatched input 'asd' expecting INTEGER");
+ YangNode node = manager.getDataModel("src/test/resources/MinElementsInvalidValue.yang");
+ }
+
+ /**
+ * Checks whether exception is thrown when min-elements statement without statement
+ * end is given as input.
+ */
+ @Test
+ public void processMinElementsWithoutStatementEnd() throws IOException, ParserException {
+ thrown.expect(ParserException.class);
+ thrown.expectMessage("missing ';' at 'description'");
+ YangNode node = manager.getDataModel("src/test/resources/MinElementsWithoutStatementEnd.yang");
+ }
+
+ /**
+ * Checks whether exception is thrown when min-elements cardinality is not
+ * as per the grammar.
+ */
+ @Test
+ public void processMinElementsInvalidCardinality() throws IOException, ParserException {
+ thrown.expect(ParserException.class);
+ thrown.expectMessage("Internal parser error detected: Invalid cardinality in" +
+ " min-elements before processing.");
+ YangNode node = manager.getDataModel("src/test/resources/MinElementsInvalidCardinality.yang");
+ }
+}
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