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

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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.Before;
import org.junit.Test;

public class SetNamesVarTest {
    private Analyzer analyzer;

    @Before
    public void setUp() {
        analyzer = AccessTestUtil.fetchAdminAnalyzer(false);
    }

    @Test
    public void testNormal() throws AnalysisException {
        SetNamesVar var = new SetNamesVar(null, null);
        var.analyze(analyzer);
        Assert.assertEquals("utf8", var.getCharset().toLowerCase());

        Assert.assertEquals("NAMES 'utf8' COLLATE DEFAULT", var.toString());

        var = new SetNamesVar("UTf8", null);
        var.analyze(analyzer);
        Assert.assertEquals("utf8", var.getCharset().toLowerCase());
        Assert.assertEquals("NAMES 'utf8' COLLATE DEFAULT", var.toString());

        var = new SetNamesVar("UTf8", "aBc");
        var.analyze(analyzer);
        Assert.assertEquals("utf8", var.getCharset().toLowerCase());
        Assert.assertEquals("NAMES 'utf8' COLLATE 'abc'", var.toString());
    }

    @Test(expected = AnalysisException.class)
    public void testUnsupported() throws AnalysisException {
        SetNamesVar var = new SetNamesVar("gbk");
        var.analyze(analyzer);
        Assert.fail("No exception throws.");
    }
}