54 lines
1.2 KiB
Java
54 lines
1.2 KiB
Java
package org.scribe.utils;
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import static org.junit.Assert.*;
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import java.util.*;
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import org.junit.*;
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public class MapUtilsTest
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{
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private Map<String, String> unsorted;
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@Before
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public void setup()
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{
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unsorted = new LinkedHashMap<String, String>();
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unsorted.put("d", "fourth");
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unsorted.put("a", "first");
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unsorted.put("c", "third");
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unsorted.put("b", "second");
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}
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@Test
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public void shouldSortMap()
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{
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Map<String, String> sorted = MapUtils.sort(unsorted);
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List<String> values = new ArrayList<String>(sorted.values());
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assertEquals("first", values.get(0));
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assertEquals("second", values.get(1));
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assertEquals("third", values.get(2));
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assertEquals("fourth", values.get(3));
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}
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@Test
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public void shouldNotModifyTheOriginalMap()
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{
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Map<String, String> sorted = MapUtils.sort(unsorted);
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assertNotSame(sorted, unsorted);
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List<String> values = new ArrayList<String>(unsorted.values());
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assertEquals("fourth", values.get(0));
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assertEquals("first", values.get(1));
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assertEquals("third", values.get(2));
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assertEquals("second", values.get(3));
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}
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@Test(expected = IllegalArgumentException.class)
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public void shouldThrowExceptionForNullMap()
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{
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MapUtils.sort(null);
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}
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}
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