PropertiesHelperTest.java

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package org.glassfish.jersey.internal.util;

import java.util.HashMap;
import java.util.Map;

import javax.ws.rs.RuntimeType;

import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

/**
 * @author Miroslav Fuksa
 *
 */
public class PropertiesHelperTest {

    @Test
    public void testGetValueWithType() {
        Map<String, String> properties = new HashMap<>();
        final String key = "my.property";
        properties.put(key, "15");

        assertEquals("15", PropertiesHelper.getValue(properties, key, String.class, null));
        assertEquals(Integer.valueOf(15), PropertiesHelper.getValue(properties, key, Integer.class, null));
        assertEquals(Long.valueOf(15), PropertiesHelper.getValue(properties, key, Long.class, null));
    }

    @Test
    public void testGetValueWithTypeAndDefaultValue() {
        Map<String, String> properties = new HashMap<>();
        final String key = "my.property";
        properties.put(key, "15");

        assertEquals("15", PropertiesHelper.getValue(properties, key, "80", String.class, null));
        assertEquals(Integer.valueOf(30), PropertiesHelper.getValue(properties, "non.existing", 30, Integer.class, null));
        assertEquals(Long.valueOf(20), PropertiesHelper.getValue(properties, "non.existing", 20L, Long.class, null));
    }

    @Test
    public void testGetValueWithDefaultValue() {
        Map<String, String> properties = new HashMap<>();
        final String key = "my.property";
        properties.put(key, "15");

        assertEquals("15", PropertiesHelper.getValue(properties, key, "80", null));
        assertEquals(Integer.valueOf(30), PropertiesHelper.getValue(properties, "non.existing", 30, null));
        assertEquals(Long.valueOf(20), PropertiesHelper.getValue(properties, "non.existing", 20L, null));
    }

    @Test
    public void testGetValueByIgnoredRuntime() {
        Map<String, String> properties = new HashMap<>();
        final String key = "my.property";
        properties.put(key, "15");

        assertEquals("15", PropertiesHelper.getValue(properties, RuntimeType.CLIENT, key, String.class, null));
        assertEquals(Integer.valueOf(15), PropertiesHelper.getValue(properties, RuntimeType.CLIENT, key, Integer.class,
                null));
        assertEquals(Long.valueOf(15), PropertiesHelper.getValue(properties, RuntimeType.SERVER, key, Long.class, null));
    }

    @Test
    public void testGetValueByRuntime1() {
        Map<String, String> properties = new HashMap<>();
        final String key = "jersey.config.my.property";
        properties.put(key, "15");
        properties.put("jersey.config.client.my.property", "999");
        properties.put("jersey.config.server.my.property", "1");

        assertEquals("999", PropertiesHelper.getValue(properties, RuntimeType.CLIENT, key, String.class, null));
        assertEquals(Integer.valueOf(999), PropertiesHelper.getValue(properties, RuntimeType.CLIENT, key, Integer.class,
                null));
        assertEquals(Long.valueOf(1), PropertiesHelper.getValue(properties, RuntimeType.SERVER, key, Long.class, null));

        assertEquals("15", PropertiesHelper.getValue(properties, key, String.class, null));
        assertEquals(Integer.valueOf(15), PropertiesHelper.getValue(properties, key, Integer.class, null));
        assertEquals(Long.valueOf(15), PropertiesHelper.getValue(properties, key, Long.class, null));
    }

    @Test
    public void testGetValueByRuntime2() {
        Map<String, String> properties = new HashMap<>();
        final String key = "jersey.config.my.property";
        properties.put(key, "15");
        properties.put("jersey.config.client.my.property", "999");

        assertEquals("999", PropertiesHelper.getValue(properties, RuntimeType.CLIENT, key, String.class, null));
        assertEquals(Integer.valueOf(999), PropertiesHelper.getValue(properties, RuntimeType.CLIENT, key, Integer.class,
                null));
        assertEquals(Long.valueOf(15), PropertiesHelper.getValue(properties, RuntimeType.SERVER, key, Long.class, null));
        assertEquals(Long.valueOf(15), PropertiesHelper.getValue(properties, RuntimeType.SERVER, key, 800L, Long.class,
                null));

        assertEquals("15", PropertiesHelper.getValue(properties, key, String.class, null));
        assertEquals(Integer.valueOf(15), PropertiesHelper.getValue(properties, key, Integer.class, null));
        assertEquals(Long.valueOf(15), PropertiesHelper.getValue(properties, key, Long.class, null));
    }

    @Test
    public void testGetValueByRuntime3() {
        Map<String, String> properties = new HashMap<>();
        final String key = "jersey.config.my.property";
        properties.put("jersey.config.client.my.property", "999");

        assertEquals("999", PropertiesHelper.getValue(properties, RuntimeType.CLIENT, key, String.class, null));
        assertNull(PropertiesHelper.getValue(properties, key, String.class, null));
        assertNull(PropertiesHelper.getValue(properties, RuntimeType.SERVER, key, String.class, null));
        assertEquals("55", PropertiesHelper.getValue(properties, key, "55", String.class, null));
    }

    /**
     * There is a value but of different type and no way how to transform.
     */
    @Test
    public void testGetValueNoTransformation() {
        Map<String, Object> properties = new HashMap<>();
        final String key = "my.property";
        properties.put(key, Boolean.TRUE);

        assertNull(PropertiesHelper.getValue(properties, key, Integer.class, null));
        //look at System.out, there is a message:
        //      WARNING: There is no way how to transform value "true" [java.lang.Boolean] to type [java.lang.Integer].
    }

    @Test
    public void testFallback() {
        Map<String, String> fallback = new HashMap<>();
        fallback.put("my.property", "my.old.property");

        Map<String, Object> properties = new HashMap<>();
        properties.put("my.old.property", "foo");

        assertEquals("foo", PropertiesHelper.getValue(properties, "my.property", String.class, fallback));
    }

    @Test
    public void testPropertyNameDeclination() {
        String myProperty = "jersey.config.my.property";
        String myClientProperty = "jersey.config.client.my.property";
        String myServerProperty = "jersey.config.server.my.property";
        String myNonJerseyProperty = "my.property";

        assertEquals(myProperty, PropertiesHelper.getPropertyNameForRuntime(myProperty, null));

        assertEquals(myClientProperty, PropertiesHelper.getPropertyNameForRuntime(myProperty, RuntimeType.CLIENT));
        assertEquals(myServerProperty, PropertiesHelper.getPropertyNameForRuntime(myProperty, RuntimeType.SERVER));

        assertEquals(myServerProperty, PropertiesHelper.getPropertyNameForRuntime(myServerProperty, RuntimeType.SERVER));
        assertEquals(myServerProperty, PropertiesHelper.getPropertyNameForRuntime(myServerProperty, RuntimeType.CLIENT));

        assertEquals(myClientProperty, PropertiesHelper.getPropertyNameForRuntime(myClientProperty, RuntimeType.SERVER));
        assertEquals(myClientProperty, PropertiesHelper.getPropertyNameForRuntime(myClientProperty, RuntimeType.CLIENT));

        assertEquals(myNonJerseyProperty, PropertiesHelper.getPropertyNameForRuntime(myNonJerseyProperty, RuntimeType.CLIENT));
        assertEquals(myNonJerseyProperty, PropertiesHelper.getPropertyNameForRuntime(myNonJerseyProperty, RuntimeType.CLIENT));
        assertEquals(myNonJerseyProperty, PropertiesHelper.getPropertyNameForRuntime(myNonJerseyProperty, null));
    }

}