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package net.sourceforge.cruisecontrol.dashboard.web.view;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import junit.framework.TestCase;

import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;

public class JsonViewTest extends TestCase {

    public void testShouldReturnOutputWithoutWhitespaceThatIsNotAllowedInHeaders() throws Exception {
        JsonView view = new JsonView();
        MockHttpServletResponse response = new MockHttpServletResponse();
        Map map = new HashMap();
        map.put("key", "\r\t\n");
        view.renderMergedOutputModel(map, new MockHttpServletRequest(), response);
        assertEquals("{ \"key\" : \"\" }", response.getContentAsString());
    }

    public void testShouldRenderEmptyEmptyMap() throws Exception {
        JsonView view = new JsonView();
        String output = view.renderJson(new HashMap());
        assertEquals("{  }", output);
    }

    public void testShouldRenderAllKeyValuePairsFromMap() throws Exception {
        Map map = new LinkedHashMap();
        map.put("key1", "value1");
        map.put("key2", "value2");
        JsonView view = new JsonView();

        String output = view.renderJson(map);
        assertEquals("{ \"key1\" : \"value1\", \"key2\" : \"value2\" }", output);
    }

    public void testShouldRenderNestedMaps() throws Exception {
        Map map = new HashMap();
        Map nestedMap = new HashMap();
        nestedMap.put("keyA", "valueA");
        map.put("key1", nestedMap);
        JsonView view = new JsonView();

        String output = view.renderJson(map);

        assertEquals("{ \"key1\" : { \"keyA\" : \"valueA\" } }", output);
    }

    public void testShouldRenderMapWithSingleBlankKeyDirectly() throws Exception {
        Map map = new HashMap();
        map.put(" ", "value");
        JsonView view = new JsonView();

        String output = view.renderJson(map);

        assertEquals("\"value\"", output);
    }

    public void testShouldRenderArrays() throws Exception {
        Map map = new HashMap();
        List array = new ArrayList();
        Map nestedMap = new HashMap();
        nestedMap.put("key1", "value1");
        array.add(nestedMap);
        array.add("value2");
        map.put(" ", array);
        JsonView view = new JsonView();

        String output = view.renderJson(map);

        assertEquals("[ { \"key1\" : \"value1\" }, \"value2\" ]", output);
    }

}