src/test/java/pta/de/core/controller/ServicesConfigCacheTest.java

package pta.de.core.controller;

import org.eclipse.jetty.http.HttpStatus;
import org.junit.Test;
import org.powermock.reflect.Whitebox;
import pta.de.api.ServiceDistributionCluster;
import pta.de.core.common.util.ResourceLoaderBase;
import pta.de.core.exceptions.HttpStatusException;

import static org.junit.Assert.assertEquals;


public class ServicesConfigCacheTest {

    private ServiceDistributionCluster[] baseTestReadServerDistribution(String jsonFile) throws Exception {
        ResourceLoaderBase resourceLoaderBase = new ResourceLoaderBase();
        String json = resourceLoaderBase.loadStringFromResource(jsonFile);

        ServicesConfigCache scc = ServicesConfigCache.getInstance();
        return Whitebox.invokeMethod(scc, "readServerDistributionFromText", json);
    }

    @Test
    public void testReadServerDistribution() throws Exception {

        ServiceDistributionCluster[] sdc = baseTestReadServerDistribution("testServiceDistributions.json");

        assertEquals(sdc[0].getClustername(), "elogbook.openK");
        assertEquals(sdc[0].getDistributions().length, 1);
        assertEquals(sdc[0].getDistributions()[0].getHost(), "172.18.22.160");
    }

    @Test
    public void testFailReadServerDistribution() throws Exception {
        try {
            baseTestReadServerDistribution("testServiceDist_False.json");
        } catch( HttpStatusException e ) {
            assertEquals(e.getHttpStatus(), HttpStatus.INTERNAL_SERVER_ERROR_500);
        }
    }

    @Test
    public void testReadServerDistribution_FileNotExist() throws Exception {
        try {
            baseTestReadServerDistribution("Nowhere.json");
        } catch (HttpStatusException e) {
            assertEquals(e.getHttpStatus(), HttpStatus.INTERNAL_SERVER_ERROR_500);
        }
    }

    @Test
    public void testReadServerDistribution_FileNotExistEither() throws Exception {
        try {
            ServicesConfigCache.getInstance().readServerDistribution("Nowhere.json");
        } catch (HttpStatusException e) {
            assertEquals(HttpStatus.INTERNAL_SERVER_ERROR_500, e.getHttpStatus());
        }
    }


}