com.redhat.lightblue.crud.validator.MinMaxCheckerTest.java Source code

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Here is the source code for com.redhat.lightblue.crud.validator.MinMaxCheckerTest.java

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/*
 Copyright 2015 Red Hat, Inc. and/or its affiliates.
    
 This file is part of lightblue.
    
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
    
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
    
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.redhat.lightblue.crud.validator;

import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.lang.reflect.InvocationTargetException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.Collection;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import com.fasterxml.jackson.databind.JsonNode;
import com.redhat.lightblue.crud.ConstraintValidator;
import com.redhat.lightblue.metadata.constraints.MinMaxConstraint;
import com.redhat.lightblue.util.Error;

@RunWith(value = Parameterized.class)
public class MinMaxCheckerTest {

    /**
     * Col1: For debugging purposes to know which test case had issues
     * Col2: A instantiation to test with. Should always represent 2.
     */
    @Parameters(name = "{index}: {0}")
    public static Collection<Object[]> data() {
        return Arrays.asList(new Object[][] { { Integer.class, new Integer(2) },
                { Byte.class, new Byte(new Integer(2).byteValue()) },
                { Short.class, new Short(new Integer(2).shortValue()) }, { Long.class, new Long(2L) },
                { Float.class, new Float(2F) }, { Double.class, new Double(2D) },
                { BigInteger.class, new BigInteger("2") }, { BigDecimal.class, new BigDecimal(2) } });
    }

    private final Number number;

    public MinMaxCheckerTest(Class<Number> type, Number number)
            throws InstantiationException, IllegalAccessException, IllegalArgumentException,
            InvocationTargetException, NoSuchMethodException, SecurityException {
        this.number = number;
    }

    protected JsonNode mockFieldValue(JsonNode mock, int value) {
        if ((number instanceof Integer) || (number instanceof Byte) || (number instanceof Short)
                || (number instanceof Long)) {
            when(mock.asLong()).thenReturn(new Long(value));
        } else if ((number instanceof Float) || (number instanceof Double)) {
            when(mock.asDouble()).thenReturn(new Double(value));
        } else if (number instanceof BigInteger) {
            when(mock.bigIntegerValue()).thenReturn(new BigInteger(String.valueOf(value)));
        } else if (number instanceof BigDecimal) {
            when(mock.decimalValue()).thenReturn(new BigDecimal(value));
        } else {
            throw new IllegalArgumentException("Not a supported Number type: " + number.getClass());
        }

        return mock;
    }

    protected Number convertInt(int value) {
        if ((number instanceof Integer) || (number instanceof Byte) || (number instanceof Short)
                || (number instanceof Long)) {
            return new Long(value);
        } else if ((number instanceof Float) || (number instanceof Double)) {
            return new Double(value);
        } else if (number instanceof BigInteger) {
            return new BigInteger(String.valueOf(value));
        } else if (number instanceof BigDecimal) {
            return new BigDecimal(value);
        }

        throw new IllegalArgumentException("Not a supported Number type: " + number.getClass());
    }

    @Test
    public void testCheckConstraint_MIN_TooSmall() {
        ConstraintValidator validator = mock(ConstraintValidator.class);

        MinMaxConstraint constraint = new MinMaxConstraint(MinMaxConstraint.MIN);
        constraint.setValue(number);

        JsonNode fieldValue = mock(JsonNode.class);
        mockFieldValue(fieldValue, 0);

        new MinMaxChecker().checkConstraint(validator, null, null, constraint, null, null, fieldValue);

        verify(validator, times(1)).addDocError(any(Error.class));
    }

    @Test
    public void testCheckConstraint_MIN_Equal_Pass() {
        ConstraintValidator validator = mock(ConstraintValidator.class);

        MinMaxConstraint constraint = new MinMaxConstraint(MinMaxConstraint.MIN);
        constraint.setValue(number);

        JsonNode fieldValue = mock(JsonNode.class);
        mockFieldValue(fieldValue, 2);

        new MinMaxChecker().checkConstraint(validator, null, null, constraint, null, null, fieldValue);

        verify(validator, never()).addDocError(any(Error.class));
    }

    @Test
    public void testCheckConstraint_MIN_Pass() {
        ConstraintValidator validator = mock(ConstraintValidator.class);

        MinMaxConstraint constraint = new MinMaxConstraint(MinMaxConstraint.MIN);
        constraint.setValue(number);

        JsonNode fieldValue = mock(JsonNode.class);
        mockFieldValue(fieldValue, 2);

        new MinMaxChecker().checkConstraint(validator, null, null, constraint, null, null, fieldValue);

        verify(validator, never()).addDocError(any(Error.class));
    }

    @Test
    public void testCheckConstraint_MAX_TooLarge() {
        ConstraintValidator validator = mock(ConstraintValidator.class);

        MinMaxConstraint constraint = new MinMaxConstraint("Fake Type");
        constraint.setValue(convertInt(0));

        JsonNode fieldValue = mock(JsonNode.class);
        mockFieldValue(fieldValue, 2);

        new MinMaxChecker().checkConstraint(validator, null, null, constraint, null, null, fieldValue);

        verify(validator, times(1)).addDocError(any(Error.class));
    }

    @Test
    public void testCheckConstraint_MAX_Equal_Pass() {
        ConstraintValidator validator = mock(ConstraintValidator.class);

        MinMaxConstraint constraint = new MinMaxConstraint("Fake Type");
        constraint.setValue(number);

        JsonNode fieldValue = mock(JsonNode.class);
        mockFieldValue(fieldValue, 2);

        new MinMaxChecker().checkConstraint(validator, null, null, constraint, null, null, fieldValue);

        verify(validator, never()).addDocError(any(Error.class));
    }

    @Test
    public void testCheckConstraint_MAX_Pass() {
        ConstraintValidator validator = mock(ConstraintValidator.class);

        MinMaxConstraint constraint = new MinMaxConstraint("Fake Type");
        constraint.setValue(number);

        JsonNode fieldValue = mock(JsonNode.class);
        mockFieldValue(fieldValue, 0);

        new MinMaxChecker().checkConstraint(validator, null, null, constraint, null, null, fieldValue);

        verify(validator, never()).addDocError(any(Error.class));
    }

}