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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.messagebus.routing;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author Simon Thoresen Hult
*/
public class RouteParserTestCase {
@Test
void testHopParser() {
Hop hop = Hop.parse("foo");
assertNotNull(hop);
assertEquals(1, hop.getNumDirectives());
assertVerbatimDirective(hop.getDirective(0), "foo");
assertNotNull(hop = Hop.parse("foo/bar"));
assertEquals(2, hop.getNumDirectives());
assertVerbatimDirective(hop.getDirective(0), "foo");
assertVerbatimDirective(hop.getDirective(1), "bar");
assertNotNull(hop = Hop.parse("tcp/foo:666/bar"));
assertEquals(1, hop.getNumDirectives());
assertTcpDirective(hop.getDirective(0), "foo", 666, "bar");
assertNotNull(hop = Hop.parse("route:foo"));
assertEquals(1, hop.getNumDirectives());
assertRouteDirective(hop.getDirective(0), "foo");
assertNotNull(hop = Hop.parse("[Extern:tcp/localhost:3619;foo/bar]"));
assertEquals(1, hop.getNumDirectives());
assertPolicyDirective(hop.getDirective(0), "Extern", "tcp/localhost:3619;foo/bar");
assertNotNull(hop = Hop.parse("[AND:foo bar]"));
assertEquals(1, hop.getNumDirectives());
assertPolicyDirective(hop.getDirective(0), "AND", "foo bar");
assertNotNull(hop = Hop.parse("[DocumentRouteSelector:raw:route[2]\n" +
"route[0].name \"foo\"\n" +
"route[0].selector \"testdoc\"\n" +
"route[0].feed \"myfeed\"\n" +
"route[1].name \"bar\"\n" +
"route[1].selector \"other\"\n" +
"route[1].feed \"myfeed\"\n" +
"]"));
assertEquals(1, hop.getNumDirectives());
assertPolicyDirective(hop.getDirective(0), "DocumentRouteSelector",
"raw:route[2]\n" +
"route[0].name \"foo\"\n" +
"route[0].selector \"testdoc\"\n" +
"route[0].feed \"myfeed\"\n" +
"route[1].name \"bar\"\n" +
"route[1].selector \"other\"\n" +
"route[1].feed \"myfeed\"");
assertNotNull(hop = Hop.parse("[DocumentRouteSelector:raw:route[1]\n" +
"route[0].name \"docproc/cluster.foo\"\n" +
"route[0].selector \"testdoc\"\n" +
"route[0].feed \"myfeed\"" +
"]"));
assertEquals(1, hop.getNumDirectives());
assertPolicyDirective(hop.getDirective(0), "DocumentRouteSelector",
"raw:route[1]\n" +
"route[0].name \"docproc/cluster.foo\"\n" +
"route[0].selector \"testdoc\"\n" +
"route[0].feed \"myfeed\"");
}
@Test
void testHopParserErrors() {
assertError(Hop.parse(""), "Failed to parse empty string.");
assertError(Hop.parse("[foo"), "Unterminated '[' in '[foo'");
assertError(Hop.parse("foo/[bar]]"), "Unexpected token ']' in 'foo/[bar]]'");
assertError(Hop.parse("foo bar"), "Failed to completely parse 'foo bar'.");
}
@Test
void testShortRoute() {
Route shortRoute = Route.parse("c");
assertNotNull(shortRoute);
assertEquals(1, shortRoute.getNumHops());
Hop hop = shortRoute.getHop(0);
assertNotNull(hop);
assertEquals(1, hop.getNumDirectives());
assertVerbatimDirective(hop.getDirective(0), "c");
}
@Test
void testShortHops() {
Route shortRoute = Route.parse("a b c");
assertNotNull(shortRoute);
assertEquals(3, shortRoute.getNumHops());
Hop hop = shortRoute.getHop(0);
assertNotNull(hop);
assertEquals(1, hop.getNumDirectives());
assertVerbatimDirective(hop.getDirective(0), "a");
}
@Test
void testRouteParser() {
Route route = Route.parse("foo bar/baz");
assertNotNull(route);
assertEquals(2, route.getNumHops());
Hop hop = route.getHop(0);
assertNotNull(hop);
assertEquals(1, hop.getNumDirectives());
assertVerbatimDirective(hop.getDirective(0), "foo");
assertNotNull(hop = route.getHop(1));
assertEquals(2, hop.getNumDirectives());
assertVerbatimDirective(hop.getDirective(0), "bar");
assertVerbatimDirective(hop.getDirective(1), "baz");
assertNotNull(route = Route.parse("[Extern:tcp/localhost:3633;itr/session] default"));
assertEquals(2, route.getNumHops());
assertNotNull(hop = route.getHop(0));
assertEquals(1, hop.getNumDirectives());
assertPolicyDirective(hop.getDirective(0), "Extern", "tcp/localhost:3633;itr/session");
assertNotNull(hop = route.getHop(1));
assertEquals(1, hop.getNumDirectives());
assertVerbatimDirective(hop.getDirective(0), "default");
}
@Test
void testRouteParserErrors() {
assertError(Route.parse(""), "Failed to parse empty string.");
assertError(Route.parse("foo [bar"), "Unterminated '[' in '[bar'");
assertError(Route.parse("foo bar/[baz]]"), "Unexpected token ']' in 'bar/[baz]]'");
}
private static void assertError(Route route, String msg) {
assertNotNull(route);
assertEquals(1, route.getNumHops());
assertError(route.getHop(0), msg);
}
private static void assertError(Hop hop, String msg) {
assertNotNull(hop);
assertEquals(1, hop.getNumDirectives());
assertErrorDirective(hop.getDirective(0), msg);
}
private static void assertErrorDirective(HopDirective dir, String msg) {
assertNotNull(dir);
assertTrue(dir instanceof ErrorDirective);
assertEquals(msg, ((ErrorDirective)dir).getMessage());
}
private static void assertPolicyDirective(HopDirective dir, String name, String param) {
assertNotNull(dir);
assertTrue(dir instanceof PolicyDirective);
assertEquals(name, ((PolicyDirective)dir).getName());
assertEquals(param, ((PolicyDirective)dir).getParam());
}
private static void assertRouteDirective(HopDirective dir, String name) {
assertNotNull(dir);
assertTrue(dir instanceof RouteDirective);
assertEquals(name, ((RouteDirective)dir).getName());
}
private static void assertTcpDirective(HopDirective dir, String host, int port, String session) {
assertNotNull(dir);
assertTrue(dir instanceof TcpDirective);
assertEquals(host, ((TcpDirective)dir).getHost());
assertEquals(port, ((TcpDirective)dir).getPort());
assertEquals(session, ((TcpDirective)dir).getSession());
}
private static void assertVerbatimDirective(HopDirective dir, String image) {
assertNotNull(dir);
assertTrue(dir instanceof VerbatimDirective);
assertEquals(image, ((VerbatimDirective)dir).getImage());
}
}
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