fe/fe-core/src/test/java/org/apache/doris/analysis/HelpStmtTest.java

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.analysis;

import org.apache.doris.common.AnalysisException;

import org.junit.Assert;
import org.junit.Test;

public class HelpStmtTest {
    @Test
    public void testNormal() throws AnalysisException {
        HelpStmt stmt = new HelpStmt("contents");
        stmt.analyze(null);
        Assert.assertEquals("contents", stmt.getMask());
        Assert.assertEquals("HELP contents", stmt.toString());

        Assert.assertEquals(3, stmt.getMetaData().getColumnCount());
        Assert.assertEquals(3, stmt.getCategoryMetaData().getColumnCount());
        Assert.assertEquals(2, stmt.getKeywordMetaData().getColumnCount());
    }

    @Test(expected = AnalysisException.class)
    public void testEmpty() throws AnalysisException {
        HelpStmt stmt = new HelpStmt("");
        stmt.analyze(null);
        Assert.fail("No exception throws.");
    }
}