/*******************************************************************************
 * Copyright Technophobia Ltd 2012
 * 
 * This file is part of the Substeps Eclipse Plugin.
 * 
 * The Substeps Eclipse Plugin is free software: you can redistribute it and/or modify
 * it under the terms of the Eclipse Public License v1.0.
 * 
 * The Substeps Eclipse Plugin 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
 * Eclipse Public License for more details.
 * 
 * You should have received a copy of the Eclipse Public License
 * along with the Substeps Eclipse Plugin.  If not, see <http://www.eclipse.org/legal/epl-v10.html>.
 ******************************************************************************/
package com.technophobia.substeps.document.content.feature.partiton;

import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;
import static org.junit.Assert.assertThat;

import java.util.Arrays;
import java.util.Collection;

import org.eclipse.core.resources.IProject;
import org.eclipse.jface.text.rules.IToken;
import org.eclipse.jface.text.rules.Token;
import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.integration.junit4.JMock;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import com.technophobia.substeps.step.ContextualSuggestionManager;
import com.technophobia.substeps.step.Suggestion;
import com.technophobia.substeps.supplier.Supplier;

@RunWith(JMock.class)
public class SuggestionManagerTextProcessorTest {

    private static final IToken token = new Token("Test");

    private static final Collection<Suggestion> suggestions = Arrays.asList(new Suggestion("suggestion-1"),
            new Suggestion("suggestion-2"), new Suggestion("suggestion-3"), new Suggestion("valid-suggestion"));

    private Mockery context;

    private Supplier<ContextualSuggestionManager> suggestionManagerSupplier;
    private Supplier<IProject> projectSupplier;

    private ContextualSuggestionManager suggestionManager;
    private IProject project;

    private TextProcessor<IToken> textProcessor;


    @SuppressWarnings("unchecked")
    @Before
    public void initialise() {
        this.context = new Mockery();

        this.projectSupplier = context.mock(Supplier.class, "projectSupplier");
        this.suggestionManagerSupplier = context.mock(Supplier.class, "suggestionManagerSupplier");

        this.suggestionManager = context.mock(ContextualSuggestionManager.class);
        this.project = context.mock(IProject.class);

        this.textProcessor = new SuggestionManagerTextProcessor(token, projectSupplier, suggestionManagerSupplier);
    }


    @Test
    public void nullProjectReturnsNullToken() {
        final String text = "invalid suggestion";

        context.checking(new Expectations() {
            {
                oneOf(projectSupplier).get();
                will(returnValue(null));
            }
        });

        assertThat(textProcessor.doWithText(text), is(nullValue()));
    }


    @Test
    public void returnsNullIfNoMatchingSuggestionsFound() {
        final String text = "invalid suggestion";

        context.checking(new Expectations() {
            {
                oneOf(projectSupplier).get();
                will(returnValue(project));

                oneOf(suggestionManagerSupplier).get();
                will(returnValue(suggestionManager));

                oneOf(suggestionManager).suggestionsFor(project);
                will(returnValue(suggestions));
            }
        });

        assertThat(textProcessor.doWithText(text), is(nullValue()));
    }


    @Test
    public void returnsSuccessTokenIfSuggestionFound() {
        final String text = "valid-suggestion";

        context.checking(new Expectations() {
            {
                oneOf(projectSupplier).get();
                will(returnValue(project));

                oneOf(suggestionManagerSupplier).get();
                will(returnValue(suggestionManager));

                oneOf(suggestionManager).suggestionsFor(project);
                will(returnValue(suggestions));
            }
        });

        assertThat(textProcessor.doWithText(text), is(token));
    }

}