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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.subscription;
import com.yahoo.foo.AppConfig;
import com.yahoo.foo.TestNonstringConfig;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
/**
* Tests different aspects of the ConfigInstance class and its underlying Nodes.
*
* @author gjoranv
*/
public class ConfigInstanceTest {
private final ConfigSourceSet sourceSet = new ConfigSourceSet("config-instance-test");
/**
* Verifies that the subscriber's configure() method is only
* called once upon subscribe, even if there are more than one
* subscribers to the same ConfigInstance. This has previously
* been a problem, since ConfigInstance.subscribe() called
* configureSubscriber(), which configures all subscribers to the
* instance. Now, the new method configureSubscriber(Subscriber)
* is called instead.
*/
@Test
public void testConfigureOnlyOnceUponSubscribe() {
final String configId = "raw:times 1\n";
AppService service1 = new AppService(configId, sourceSet);
AppService service2 = new AppService(configId, sourceSet);
assertEquals(1, service1.timesConfigured());
assertEquals(1, service2.timesConfigured());
service1.cancelSubscription();
service2.cancelSubscription();
}
/**
* Verifies that values set in previous setConfig() calls are
* retained when the payload in a new setConfig() call does not
* overwrite them.
*/
@Test
@Ignore
public void testRetainOldValuesOnConfigUpdates() {
AppConfig config = new AppConfig(new AppConfig.Builder());
//config.setConfig(Arrays.asList("message \"one\"", "times 333"), "", 0L);
assertEquals("one", config.message());
assertEquals(333, config.times());
//config.setConfig(Arrays.asList("message \"two\""), "", 0L);
assertEquals("two", config.message());
assertEquals("config.times retains previously set value", 333, config.times());
//config.setConfig(Arrays.asList("times 666"), "", 0L);
assertEquals("config.message retains previously set value", "two", config.message());
assertEquals(666, config.times());
}
/**
* Verifies that an exception is thrown when one attempts to set an
* illegal config value for parameters that have default values.
*/
@Test
public void testFailUponIllegalValue() {
verifyIllegalValue("i notAnInt");
verifyIllegalValue("i 3.0");
verifyIllegalValue("d noDouble");
verifyIllegalValue("d 3.0.");
// verifyIllegalValue("b notTrueOrFalse");
//verifyIllegalValue("b 1");
//verifyIllegalValue("b 0");
verifyIllegalValue("e undeclaredEnumValue");
verifyIllegalValue("e 0");
}
private void verifyIllegalValue(String line) {
String configId = "raw:" + line + "\n";
try {
new TestNonstring(configId);
fail("Expected ConfigurationRuntimeException when setting a parameter value of wrong type.");
} catch (RuntimeException expected) {
verifyException(expected, "Not able to create config builder for payload", "Got ConfigurationRuntimeException for the wrong reason. " +
"Expected to fail when setting a parameter value of wrong type.");
}
}
private void verifyException(Throwable throwable, String expected, String failMessage) {
Throwable t = throwable;
boolean ok = false;
while (t != null) {
if (t.getMessage() != null && t.getMessage().contains(expected)) {
ok = true;
break;
}
t = t.getCause();
}
if (!ok) {
throwable.printStackTrace();
fail(failMessage);
}
}
private class TestNonstring {
public TestNonstring(String configId) {
ConfigSubscriber subscriber = new ConfigSubscriber();
ConfigHandle<TestNonstringConfig> handle = subscriber.subscribe(TestNonstringConfig.class, configId);
subscriber.nextConfig(false);
handle.getConfig();
}
}
}
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