/*
 * Copyright DataStax, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.datastax.driver.core;

import org.testng.annotations.Test;

import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static org.assertj.core.api.Assertions.assertThat;

public class SimpleStatementTest {

    @Test(groups = "unit", expectedExceptions = {IllegalArgumentException.class})
    public void should_fail_if_too_many_variables() {
        List<Object> args = Collections.nCopies(1 << 16, (Object) 1);
        new SimpleStatement("mock query", args.toArray());
    }

    @Test(groups = "unit", expectedExceptions = {IllegalStateException.class})
    public void should_throw_ISE_if_getObject_called_on_statement_without_values() {
        new SimpleStatement("doesn't matter").getObject(0);
    }

    @Test(groups = "unit", expectedExceptions = {IndexOutOfBoundsException.class})
    public void should_throw_IOOBE_if_getObject_called_with_wrong_index() {
        new SimpleStatement("doesn't matter", new Object()).getObject(1);
    }

    @Test(groups = "unit")
    public void should_return_object_at_ith_index() {
        Object expected = new Object();
        Object actual = new SimpleStatement("doesn't matter", expected).getObject(0);
        assertThat(actual).isSameAs(expected);
    }

    @Test(groups = "unit", expectedExceptions = {IllegalStateException.class})
    public void should_throw_ISE_if_getObject_called_on_statement_without_named_values() {
        new SimpleStatement("doesn't matter").getObject("name");
    }

    @Test(groups = "unit")
    public void should_return_null_if_getObject_called_on_statement_with_wrong_name() {
        Map<String, Object> namedVales = new HashMap<String, Object>();
        namedVales.put("name", new Object());
        Object actual = new SimpleStatement("doesn't matter", namedVales).getObject("wrong name");
        assertThat(actual).isNull();
    }

    @Test(groups = "unit")
    public void should_return_object_with_name() {
        Object expected = new Object();
        String valueName = "name";
        Map<String, Object> namedVales = new HashMap<String, Object>();
        namedVales.put(valueName, expected);
        Object actual = new SimpleStatement("doesn't matter", namedVales).getObject(valueName);
        assertThat(actual).isSameAs(expected);
    }

    @Test(groups = "unit", expectedExceptions = {IllegalStateException.class})
    public void should_throw_ISE_if_getValueNames_called_on_statement_without_named_values() {
        new SimpleStatement("doesn't matter").getValueNames();
    }

    @Test(groups = "unit")
    public void should_return_named_value() {
        Object expected = new Object();
        Map<String, Object> namedValues = new HashMap<String, Object>();
        namedValues.put("name", expected);
        Object actual = new SimpleStatement("doesn't matter", namedValues).getObject("name");
        assertThat(actual).isEqualTo(expected);
    }

    @Test(groups = "unit")
    public void should_return_number_of_values() {
        assertThat(
                new SimpleStatement("doesn't matter").valuesCount()
        ).isEqualTo(0);
        assertThat(
                new SimpleStatement("doesn't matter", 1, 2).valuesCount()
        ).isEqualTo(2);
    }

}
