io.wcm.caravan.pipeline.extensions.hal.client.action.DeepEmbedLinksTest.java Source code

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Here is the source code for io.wcm.caravan.pipeline.extensions.hal.client.action.DeepEmbedLinksTest.java

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 * Copyright (C) 2014 wcm.io
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 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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package io.wcm.caravan.pipeline.extensions.hal.client.action;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.Collections;
import java.util.List;

import org.junit.Test;

import com.fasterxml.jackson.databind.node.ObjectNode;

import io.wcm.caravan.hal.resource.HalResource;
import io.wcm.caravan.pipeline.JsonPipelineOutput;
import io.wcm.caravan.pipeline.impl.JsonPipelineOutputImpl;

public class DeepEmbedLinksTest extends AbstractActionContext {

    @Test
    public void shouldHaveAnUniqueId() {

        DeepEmbedLinks action = createAction("multiple");
        assertTrue(action.getId().contains("multiple"));

    }

    private DeepEmbedLinks createAction(String relation) {
        return new DeepEmbedLinks("testService", relation, Collections.emptyMap());
    }

    @Test
    public void shouldLoadAllLinksForRelationAndEmbedAsResource() {

        HalResource hal = createHalOutput("primary");

        List<HalResource> resources = hal.getEmbedded("primary");
        assertEquals(2, resources.size());
        assertEquals("/resource1", resources.get(0).getLink().getHref());
        assertEquals("/resource2", resources.get(1).getLink().getHref());

        resources = hal.getEmbedded("stillEmbedded").get(0).getEmbedded("primary");
        assertEquals(2, resources.size());
        assertEquals("/resource1", resources.get(0).getLink().getHref());
        assertEquals("/resource2", resources.get(1).getLink().getHref());

    }

    private HalResource createHalOutput(String relation) {

        DeepEmbedLinks action = createAction(relation);
        ObjectNode payload = getPayload();
        new HalResource(payload).addEmbedded("stillEmbedded", new HalResource(getPayload()));
        JsonPipelineOutput input = new JsonPipelineOutputImpl(payload, Collections.emptyList());
        JsonPipelineOutput output = action.execute(input, context).toBlocking().single();
        HalResource hal = new HalResource(output.getPayload());
        return hal;

    }

    @Test
    public void shouldDeleteAllLinksForRelation() {

        HalResource hal = createHalOutput("primary");
        assertFalse(hal.hasLink("primary"));
        assertTrue(hal.hasLink("secondary"));

        hal = hal.getEmbedded("stillEmbedded").get(0);
        assertFalse(hal.hasLink("primary"));
        assertTrue(hal.hasLink("secondary"));

    }

    @Test
    public void shouldDoNothingForMissingRelations() {

        HalResource hal = createHalOutput("unknown");
        assertTrue(hal.hasLink("secondary"));
        assertTrue(hal.hasLink("primary"));
        assertFalse(hal.hasEmbedded("primary"));

        hal = hal.getEmbedded("stillEmbedded").get(0);
        assertTrue(hal.hasLink("secondary"));
        assertTrue(hal.hasLink("primary"));
        assertFalse(hal.hasEmbedded("primary"));

    }

}