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/*-
* ============LICENSE_START=======================================================
* ONAP : CCSDK
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.ccsdk.sli.core.sli.provider;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicExprListener;
import org.onap.ccsdk.sli.core.sli.SvcLogicExpression;
import org.onap.ccsdk.sli.core.sli.SvcLogicExpressionFactory;
import org.onap.ccsdk.sli.core.sli.SvcLogicGraph;
import org.onap.ccsdk.sli.core.sli.SvcLogicNode;
import org.onap.ccsdk.sli.core.sli.provider.SvcLogicExpressionResolver;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import junit.framework.Assert;
import junit.framework.TestCase;
public class SvcLogicExpressionResolverTest extends TestCase {
private static final Logger LOG = LoggerFactory
.getLogger(SvcLogicExpressionResolver.class);
public void testEvaluate()
{
InputStream testStr = getClass().getResourceAsStream("/expression.tests");
BufferedReader testsReader = new BufferedReader(new InputStreamReader(testStr));
try
{
SvcLogicContext ctx = new SvcLogicContext();
SvcLogicGraph graph = new SvcLogicGraph();
SvcLogicNode node = new SvcLogicNode(1, "return", graph);
graph.setRootNode(node);
String line = null;
int lineNo = 0;
while ((line = testsReader.readLine()) != null) {
++lineNo;
if (line.startsWith("#"))
{
String testExpr = line.trim().substring(1).trim();
String[] nameValue = testExpr.split("=");
String name = nameValue[0].trim();
String value = nameValue[1].trim();
if (name.startsWith("$"))
{
LOG.info("Setting context attribute "+name+" = "+value);
ctx.setAttribute(name.substring(1), value);
}
else
{
LOG.info("Setting node attribute "+name+" = "+value);
node.setAttribute(name, value);
}
}
else
{
// if the line contains #, what comes before is the expression to evaluate, and what comes after
// is the expected value
String[] substrings = line.split("#");
String expectedValue = substrings.length > 1 ? substrings[1].trim() : null;
String testExpr = substrings[0].trim();
LOG.info("Parsing expression "+testExpr);
SvcLogicExpression expr = SvcLogicExpressionFactory.parse(testExpr);
if (expr == null)
{
fail("Unable to parse expression "+testExpr);
}
else
{
LOG.info("Evaluating parsed expression "+expr.asParsedExpr());
String exprValue = SvcLogicExpressionResolver.evaluate(expr, node, ctx);
if (exprValue == null)
{
fail("Unable to evaluate expression "+testExpr);
}
else
{
LOG.info("Expression " + testExpr + " evaluates to " + exprValue);
if (expectedValue != null) {
Assert.assertEquals("Line " + lineNo + ": " + testExpr, expectedValue, exprValue);
}
}
}
}
}
}
catch (Exception e)
{
LOG.error("Caught exception", e);
fail("Caught exception");
}
}
}
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