fleetd #612: cover fleet list reporting sources
This commit is contained in:
Dai Ha
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package dev.ltms.fleet;
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import dev.ltms.fleet.config.ConfigRef;
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import dev.ltms.fleet.config.FleetConfig;
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import dev.ltms.fleet.guard.SubscriptionGuard;
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import dev.ltms.fleet.herdr.FakeHerdr;
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import dev.ltms.fleet.herdr.HerdrClient;
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import dev.ltms.fleet.msg.LeadChannelHandle;
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import dev.ltms.fleet.msg.LeadMessage;
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import dev.ltms.fleet.msg.ReplyInbox;
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import io.javalin.Javalin;
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import io.modelcontextprotocol.client.McpClient;
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import io.modelcontextprotocol.client.McpSyncClient;
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import io.modelcontextprotocol.client.transport.HttpClientStreamableHttpTransport;
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import io.modelcontextprotocol.spec.McpClientTransport;
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import io.modelcontextprotocol.spec.McpSchema;
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import org.junit.jupiter.api.AfterEach;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.Timeout;
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import org.junit.jupiter.api.io.TempDir;
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import java.net.http.HttpRequest;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.TimeUnit;
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import java.util.function.LongSupplier;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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/**
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* fleetd #612 Shape A ranks 9 and 11: drives the real {@code fleet_list} MCP route through a
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* token-authenticated primary caller. The assertions read the response from the exact {@link
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* dev.ltms.fleet.mcp.FleetMcp} instance assembled by {@link FleetdAssembly}, rather than a source
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* scrape or a separately built reporting source.
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*
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* <p>The coordinator fixture contains a peer on purpose. Both a missing coordinator and an
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* incorrectly wired peers argument can render as an empty list, so the non-empty peer assertion
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* distinguishes the real call-site value from that inert result. Its fake mailbox never contacts a
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* broker.
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*/
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class FleetdListReportingSourcesAssemblyTest {
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private static final String TOKEN = "fleetd-r9-r11-test-token";
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private static final String TOKEN_ENV = "FLEETD_R9_TEST_TOKEN";
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private static final String PROFILE = "capacity-profile";
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private static final String PEER = "peer-fleet";
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private static final class FakeLeadChannel implements LeadChannelHandle {
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@Override
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public void publish(String toCoordId, LeadMessage message) {
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}
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@Override
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public List<LeadMessage> peek() {
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return List.of();
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}
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@Override
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public void ack(String msgId) {
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}
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@Override
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public String selfCoordId() {
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return "test-lead";
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}
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@Override
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public boolean heldDurable() {
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return true;
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}
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@Override
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public MailboxState inspect(String coordId) {
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return MailboxState.unknown(coordId);
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}
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@Override
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public void close() {
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}
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}
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private static final class TestResourcePorts implements ResourcePorts {
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private final FakeHerdr herdr = new FakeHerdr();
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private Runnable shutdownHook;
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@Override
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public Map<String, String> environment() {
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return Map.of(TOKEN_ENV, TOKEN);
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}
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@Override
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public HerdrClient connectHerdr(Path socketPath) {
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return herdr;
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}
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@Override
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public Fleetd.AmqpOpener replyInboxOpener() {
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return (uri, prefetch) -> new ReplyInbox() {
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@Override public void own(String target) { }
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@Override public void release(String target) { }
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@Override public void publish(String target, String msgId, String content) { }
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@Override public List<InboxMessage> peek(String target) { return List.of(); }
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@Override public boolean ack(String target, String msgId) { return false; }
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};
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}
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@Override
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public Fleetd.LeadMailboxOpener leadMailboxOpener() {
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return (uri, selfCoordId, prefetch) -> new FakeLeadChannel();
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}
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@Override
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public LongSupplier nanoClock() {
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return System::nanoTime;
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}
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@Override
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public LongSupplier wallClockNanos() {
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return System::nanoTime;
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}
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@Override
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public ScheduledExecutorService newScheduler(String purpose) {
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return Executors.newSingleThreadScheduledExecutor();
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}
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@Override
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public void addShutdownHook(Runnable hook) {
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shutdownHook = hook;
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}
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@Override
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public void startHttp(Javalin app, String host, int port) {
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// The test binds runtime.app() itself, below.
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}
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@Override
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public Runnable herdrPollWait() {
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return () -> {
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throw new UnsupportedOperationException("healthy FakeHerdr must not poll");
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};
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}
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}
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private FleetdRuntime runtime;
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private TestResourcePorts ports;
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private Javalin boundApp;
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@AfterEach
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void tearDown() {
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if (boundApp != null) {
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boundApp.stop();
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}
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if (ports != null && ports.shutdownHook != null) {
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ports.shutdownHook.run();
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}
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}
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private static FleetConfig writeConfig(Path dir) throws Exception {
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Path file = dir.resolve("fleetd.yaml");
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Files.writeString(file, """
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bind:
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host: 127.0.0.1
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port: 8765
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auth:
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mode: token
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tokenEnv: %s
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idleSleepGuard:
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enabled: false
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health:
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enabled: true
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notifications:
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mode: webhook
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profiles:
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%s:
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baseUrl: http://capacity.test:8000
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model: test-model
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maxLoad: 7
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coordinator:
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uri: amqp://fake-coordinator/vh
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selfId: test-lead
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peers:
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- %s
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""".formatted(TOKEN_ENV, PROFILE, PEER));
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return FleetConfig.load(file);
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}
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private int assembleAndBind(Path dir) throws Exception {
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FleetConfig cfg = writeConfig(dir);
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ConfigRef config = new ConfigRef(dir.resolve("fleetd.yaml"), cfg);
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ports = new TestResourcePorts();
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runtime = FleetdAssembly.assembleAndStart(new AssemblyInputs(cfg, config,
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new SubscriptionGuard(cfg.guard().hostSet())), ports);
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boundApp = runtime.app().start("127.0.0.1", 0);
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return boundApp.port();
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}
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private static String fleetList(int port) {
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HttpRequest.Builder requestTemplate = HttpRequest.newBuilder()
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.header("Authorization", "Bearer " + TOKEN);
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McpClientTransport transport = HttpClientStreamableHttpTransport.builder("http://127.0.0.1:" + port)
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.endpoint("/mcp")
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.requestBuilder(requestTemplate)
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.build();
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try (McpSyncClient client = McpClient.sync(transport).build()) {
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client.initialize();
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McpSchema.CallToolResult response = client.callTool(McpSchema.CallToolRequest.builder("fleet_list")
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.arguments(Map.of()).build());
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return ((McpSchema.TextContent) response.content().getFirst()).text();
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}
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}
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@Test
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@Timeout(value = 15, unit = TimeUnit.SECONDS, threadMode = Timeout.ThreadMode.SEPARATE_THREAD)
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void fleetListReportsTheAssembledCapacitySource(@TempDir Path dir) throws Exception {
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String response = fleetList(assembleAndBind(dir));
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assertTrue(response.contains("\"capacity\""), response);
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assertTrue(response.contains("\"" + PROFILE + "\""), response);
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assertTrue(response.contains("\"maxLoad\":7"), response);
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}
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@Test
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@Timeout(value = 15, unit = TimeUnit.SECONDS, threadMode = Timeout.ThreadMode.SEPARATE_THREAD)
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void fleetListReportsTheAssembledHealthCoverageSource(@TempDir Path dir) throws Exception {
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String response = fleetList(assembleAndBind(dir));
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assertTrue(response.contains("\"healthCoverage\":\"full\""), response);
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}
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@Test
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@Timeout(value = 15, unit = TimeUnit.SECONDS, threadMode = Timeout.ThreadMode.SEPARATE_THREAD)
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void fleetListReportsTheAssembledCoordinatorPeers(@TempDir Path dir) throws Exception {
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String response = fleetList(assembleAndBind(dir));
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assertTrue(response.contains("\"coordinator\""), response);
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assertTrue(response.contains("\"coordId\":\"" + PEER + "\""), response);
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}
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}
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