openecomp-be/lib/openecomp-core-lib/openecomp-nosqldb-lib/openecomp-nosqldb-core/src/test/java/org/openecomp/core/nosqldb/util/ConfigurationManagerTest.java

   1 package org.openecomp.core.nosqldb.util;
   2
   3 import org.testng.annotations.BeforeMethod;
   4 import org.testng.annotations.Test;
   5
   6 import java.io.Closeable;
   7 import java.io.IOException;
   8 import java.lang.reflect.Field;
   9
  10 import static org.testng.Assert.assertNotNull;
  11
  12 /**
  13  * @author EVITALIY
  14  * @since 22 Oct 17
  15  */
  16 public class ConfigurationManagerTest {
  17
  18     private static final String NON_EXISTENT = "unexistentfile";
  19
  20     @BeforeMethod
  21     public void resetInstance() throws NoSuchFieldException, IllegalAccessException {
  22         Field field = ConfigurationManager.class.getDeclaredField("instance");
  23         field.setAccessible(true);
  24         field.set(null, null);
  25     }
  26
  27     @Test(expectedExceptions = IOException.class,
  28             expectedExceptionsMessageRegExp = ".*" + NON_EXISTENT + ".*")
  29     public void testGetInstanceSystemProperty() throws Throwable {
  30
  31         try (ConfigurationSystemPropertyUpdater updater = new ConfigurationSystemPropertyUpdater(NON_EXISTENT)) {
  32             ConfigurationManager.getInstance();
  33         } catch (RuntimeException e) {
  34             Throwable cause = e.getCause();
  35             throw cause == null ? e : cause;
  36         }
  37     }
  38
  39     @Test()
  40     public void testGetInstanceDefault() throws Exception {
  41
  42         try (ConfigurationSystemPropertyUpdater property = new ConfigurationSystemPropertyUpdater()) {
  43             ConfigurationManager manager = ConfigurationManager.getInstance();
  44             assertNotNull(manager.getUsername());
  45         }
  46     }
  47
  48
  49     private static class ConfigurationSystemPropertyUpdater implements Closeable {
  50
  51         private final String oldValue;
  52
  53         private ConfigurationSystemPropertyUpdater(String value) {
  54             this.oldValue = System.getProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
  55             System.setProperty(ConfigurationManager.CONFIGURATION_YAML_FILE, value);
  56         }
  57
  58         private ConfigurationSystemPropertyUpdater() {
  59             this.oldValue = System.getProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
  60             System.clearProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
  61         }
  62
  63         @Override
  64         public void close() throws IOException {
  65
  66             if (oldValue == null) {
  67                 System.clearProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
  68             } else {
  69                 System.setProperty(ConfigurationManager.CONFIGURATION_YAML_FILE, oldValue);
  70             }
  71         }
  72     }
  73 }