package com.gooddata.md;

import org.codehaus.jackson.map.ObjectMapper;

import org.hamcrest.Matchers;

import org.junit.Test;

import java.io.InputStream;

import java.util.Collection;

import static com.gooddata.JsonMatchers.serializesToJson;

import static org.hamcrest.CoreMatchers.is;

import static org.hamcrest.CoreMatchers.notNullValue;

import static org.hamcrest.Matchers.hasSize;

import static org.junit.Assert.assertThat;

public class AttributeTest {

public static final String TITLE = "Person ID";

@Test

public void shouldDeserialize() throws Exception {

final InputStream stream = getClass().getResourceAsStream("/md/attribute.json");

final Attribute attribute = new ObjectMapper().readValue(stream, Attribute.class);

assertThat(attribute, is(notNullValue()));

final Collection<DisplayForm> displayForms = attribute.getDisplayForms();

assertThat(displayForms, is(notNullValue()));

assertThat(displayForms, hasSize(1));

final DisplayForm displayForm = displayForms.iterator().next();

assertThat(displayForm, is(notNullValue()));

assertThat(displayForm.getFormOf(), is("/gdc/md/PROJECT_ID/obj/DF_FORM_OF_ID"));

assertThat(displayForm.getExpression(), is("[/gdc/md/PROJECT_ID/obj/DF_EXPRESSION_ID]"));

assertThat(displayForm.getLdmExpression(), is("[/gdc/md/PROJECT_ID/obj/DF_LDM_EXPRESSION_ID]"));

final Collection<Key> primaryKeys = attribute.getPrimaryKeys();

assertThat(primaryKeys, is(Matchers.notNullValue()));

assertThat(primaryKeys, hasSize(1));

assertThat(primaryKeys.iterator().next(), is(Matchers.notNullValue()));

final Collection<Key> foreignKeys = attribute.getForeignKeys();

assertThat(foreignKeys, is(Matchers.notNullValue()));

assertThat(foreignKeys, hasSize(1));

assertThat(foreignKeys.iterator().next(), is(Matchers.notNullValue()));

}

@Test

public void testSerialization() throws Exception {

final Attribute attribute = new Attribute(TITLE, new Key("/gdc/md/PROJECT_ID/obj/PK_ID", "col"),

new Key("/gdc/md/PROJECT_ID/obj/FK_ID", "col"));

assertThat(attribute, serializesToJson("/md/attribute-input.json"));

}

}