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/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file:
 *
 * Copyright (c) 2011-2012, Stephen Colebourne & Michael Nascimento Santos
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
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 */
package tck.java.time;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.fail;

import java.time.DateTimeException;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalField;
import java.time.temporal.TemporalQuery;
import java.util.List;

import org.testng.annotations.Test;
import test.java.time.temporal.MockFieldNoValue;

/**
 * Base test class for {@code Temporal}.
 */
public abstract class AbstractDateTimeTest extends AbstractTCKTest {

    /**
     * Sample {@code Temporal} objects.
     * @return the objects, not null
     */
    protected abstract List<TemporalAccessor> samples();

    /**
     * List of valid supported fields.
     * @return the fields, not null
     */
    protected abstract List<TemporalField> validFields();

    /**
     * List of invalid unsupported fields.
     * @return the fields, not null
     */
    protected abstract List<TemporalField> invalidFields();

    //-----------------------------------------------------------------------
    // isSupported(TemporalField)
    //-----------------------------------------------------------------------
    @Test()
    public void basicTest_isSupported_TemporalField_supported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : validFields()) {
                assertEquals(sample.isSupported(field), true, "Failed on " + sample + " " + field);
            }
        }
    }

    @Test()
    public void basicTest_isSupported_TemporalField_unsupported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : invalidFields()) {
                assertEquals(sample.isSupported(field), false, "Failed on " + sample + " " + field);
            }
        }
    }

    @Test()
    public void basicTest_isSupported_TemporalField_null() {
        for (TemporalAccessor sample : samples()) {
            assertEquals(sample.isSupported(null), false, "Failed on " + sample);
        }
    }

    //-----------------------------------------------------------------------
    // range(TemporalField)
    //-----------------------------------------------------------------------
    @Test()
    public void basicTest_range_TemporalField_supported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : validFields()) {
                sample.range(field);  // no exception
            }
        }
    }

    @Test()
    public void basicTest_range_TemporalField_unsupported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : invalidFields()) {
                try {
                    sample.range(field);
                    fail("Failed on " + sample + " " + field);
                } catch (DateTimeException ex) {
                    // expected
                }
            }
        }
    }

    @Test()
    public void basicTest_range_TemporalField_null() {
        for (TemporalAccessor sample : samples()) {
            try {
                sample.range(null);
                fail("Failed on " + sample);
            } catch (NullPointerException ex) {
                // expected
            }
        }
    }

    //-----------------------------------------------------------------------
    // get(TemporalField)
    //-----------------------------------------------------------------------
    @Test()
    public void basicTest_get_TemporalField_supported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : validFields()) {
                if (sample.range(field).isIntValue()) {
                    sample.get(field);  // no exception
                } else {
                    try {
                        sample.get(field);
                        fail("Failed on " + sample + " " + field);
                    } catch (DateTimeException ex) {
                        // expected
                    }
                }
            }
        }
    }

    @Test()
    public void basicTest_get_TemporalField_unsupported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : invalidFields()) {
                try {
                    sample.get(field);
                    fail("Failed on " + sample + " " + field);
                } catch (DateTimeException ex) {
                    // expected
                }
            }
        }
    }

    @Test(expectedExceptions=DateTimeException.class)
    public void test_get_TemporalField_invalidField() {
        for (TemporalAccessor sample : samples()) {
            sample.get(MockFieldNoValue.INSTANCE);
        }
    }

    @Test()
    public void basicTest_get_TemporalField_null() {
        for (TemporalAccessor sample : samples()) {
            try {
                sample.get(null);
                fail("Failed on " + sample);
            } catch (NullPointerException ex) {
                // expected
            }
        }
    }

    //-----------------------------------------------------------------------
    // getLong(TemporalField)
    //-----------------------------------------------------------------------
    @Test()
    public void basicTest_getLong_TemporalField_supported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : validFields()) {
                sample.getLong(field);  // no exception
            }
        }
    }

    @Test()
    public void basicTest_getLong_TemporalField_unsupported() {
        for (TemporalAccessor sample : samples()) {
            for (TemporalField field : invalidFields()) {
                try {
                    sample.getLong(field);
                    fail("Failed on " + sample + " " + field);
                } catch (DateTimeException ex) {
                    // expected
                }
            }
        }
    }

    @Test(expectedExceptions=DateTimeException.class)
    public void test_getLong_TemporalField_invalidField() {
        for (TemporalAccessor sample : samples()) {
            sample.getLong(MockFieldNoValue.INSTANCE);
        }
    }

    @Test()
    public void basicTest_getLong_TemporalField_null() {
        for (TemporalAccessor sample : samples()) {
            try {
                sample.getLong(null);
                fail("Failed on " + sample);
            } catch (NullPointerException ex) {
                // expected
            }
        }
    }

    //-----------------------------------------------------------------------
    @Test
    public void basicTest_query() {
        for (TemporalAccessor sample : samples()) {
            assertEquals(sample.query(new TemporalQuery<String>() {
                @Override
                public String queryFrom(TemporalAccessor temporal) {
                    return "foo";
                }
            }), "foo");
        }
    }

}