//
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// Copyright (c) 2022 Alexander Söderberg & Contributors
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package cloud.commandframework.issue;

import cloud.commandframework.CommandManager;
import cloud.commandframework.CommandTree;
import cloud.commandframework.TestCommandSender;
import cloud.commandframework.context.CommandContext;
import cloud.commandframework.exceptions.NoSuchCommandException;
import cloud.commandframework.types.tuples.Pair;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Queue;
import org.junit.jupiter.api.Test;

import static cloud.commandframework.util.TestUtils.createManager;
import static com.google.common.truth.Truth.assertThat;

/**
 * Test for https://github.com/Incendo/cloud/issues/337.
 */
class Issue337 {

    @Test
    void emptyCommandThreeThrowsNoSuchCommandException() {
        // Arrange
        final TestCommandSender commandSender = new TestCommandSender();
        final CommandManager<TestCommandSender> commandManager = createManager();
        final CommandTree<TestCommandSender> commandTree = CommandTree.newTree(commandManager);
        final Queue<String> strings = new LinkedList<>(Arrays.asList("test", "this", "thing"));

        // Act
        final Pair<?, Exception> result = commandTree.parse(new CommandContext<>(commandSender, commandManager), strings);

        // Assert
        assertThat(result.getFirst()).isNull();
        assertThat(result.getSecond()).isInstanceOf(NoSuchCommandException.class);

        final NoSuchCommandException noSuchCommandException = (NoSuchCommandException) result.getSecond();
        assertThat(noSuchCommandException.getSuppliedCommand()).isEqualTo("test");
        assertThat(noSuchCommandException).hasCauseThat().isNull();
    }
}
