PropertiesAsMapTest.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.maven.internal.impl;

import java.util.Iterator;
import java.util.Map.Entry;
import java.util.NoSuchElementException;
import java.util.Properties;
import java.util.Set;

import org.apache.maven.impl.PropertiesAsMap;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

class PropertiesAsMapTest {

    @Test
    void testPropertiesAsMap() {
        Properties props = new Properties();
        props.setProperty("foo1", "bar1");
        props.setProperty("foo2", "bar2");
        PropertiesAsMap pam = new PropertiesAsMap(props);
        assertEquals(2, pam.size());
        Set<Entry<String, String>> set = pam.entrySet();
        assertNotNull(set);
        assertEquals(2, set.size());
        Iterator<Entry<String, String>> iterator = set.iterator();
        assertNotNull(iterator);
        assertTrue(iterator.hasNext(), "Expected " + iterator + ".hasNext() to return true");
        assertTrue(iterator.hasNext(), "Expected " + iterator + ".hasNext() to return true");
        Entry<String, String> entry = iterator.next();
        assertNotNull(entry);
        entry = iterator.next();
        assertNotNull(entry);
        assertThrows(NoSuchElementException.class, () -> iterator.next());
        assertFalse(iterator.hasNext(), "Expected " + iterator + ".hasNext() to return false");
    }
}