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

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.analysis;

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

import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.UserException;

public class ShowDbStmtTest {
    @Test
    public void testNormal() throws UserException, AnalysisException  {
        final Analyzer analyzer =  AccessTestUtil.fetchBlockAnalyzer();
        ShowDbStmt stmt = new ShowDbStmt(null);
        stmt.analyze(analyzer);
        Assert.assertNull(stmt.getPattern());
        Assert.assertEquals("SHOW DATABASES", stmt.toString());
        Assert.assertEquals(1, stmt.getMetaData().getColumnCount());
        Assert.assertEquals("Database", stmt.getMetaData().getColumn(0).getName());

        stmt = new ShowDbStmt("abc");
        stmt.analyze(analyzer);
        Assert.assertEquals("abc", stmt.getPattern());
        Assert.assertEquals("SHOW DATABASES LIKE 'abc'", stmt.toString());
        Assert.assertEquals(1, stmt.getMetaData().getColumnCount());
        Assert.assertEquals("Database", stmt.getMetaData().getColumn(0).getName());
    }
}