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package com.google.refine.tests.model;
import static org.mockito.Mockito.mock;
import java.io.File;
import java.io.IOException;
import java.util.Properties;
import org.json.JSONException;
import org.json.JSONObject;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import com.google.refine.ProjectManager;
import com.google.refine.ProjectMetadata;
import com.google.refine.browsing.Engine;
import com.google.refine.browsing.RowVisitor;
import com.google.refine.expr.functions.FacetCount;
import com.google.refine.grel.Function;
import com.google.refine.io.FileProjectManager;
import com.google.refine.model.Cell;
import com.google.refine.model.Column;
import com.google.refine.model.ModelException;
import com.google.refine.model.Project;
import com.google.refine.model.Row;
import com.google.refine.operations.EngineDependentOperation;
import com.google.refine.operations.row.RowRemovalOperation;
import com.google.refine.tests.RefineTest;
import com.google.refine.tests.util.TestUtils;
public class CacheTests extends RefineTest {
//{project=1718051861971, engine= ...}
//engine={ "facets" : ..., "mode":"row-based"}}
//facets = [{"type":"list","name":"row","columnName":"row","expression":"facetCount(value, 'value', 'row') > 1","omitBlank":false,"omitError":false,"selection":[],"selectBlank":false,"selectError":false,"invert":false}]
// {project=1718051861971, engine=
// Equivalent to duplicate facet on Column A with true selected
static final String ENGINE_JSON_DUPLICATES = "{\"facets\":[{\"type\":\"list\",\"name\":\"facet A\",\"columnName\":\"Column A\",\"expression\":\"facetCount(value, 'value', 'Column A') > 1\",\"omitBlank\":false,\"omitError\":false,\"selection\":[{\"v\":{\"v\":true,\"l\":\"true\"}}],\"selectBlank\":false,\"selectError\":false,\"invert\":false}],\"mode\":\"row-based\"}}";
@Override
@BeforeTest
public void init() {
logger = LoggerFactory.getLogger(this.getClass());
}
// dependencies
Project project;
Properties options;
JSONObject engine_config;
Engine engine;
Properties bindings;
@BeforeMethod
public void SetUp() throws JSONException, IOException, ModelException {
File dir = TestUtils.createTempDirectory("openrefine-test-workspace-dir");
FileProjectManager.initialize(dir);
project = new Project();
ProjectMetadata pm = new ProjectMetadata();
pm.setName("TNG Test Project");
ProjectManager.singleton.registerProject(project, pm);
int index = project.columnModel.allocateNewCellIndex();
Column column = new Column(index,"Column A");
project.columnModel.addColumn(index, column, true);
options = mock(Properties.class);
engine = new Engine(project);
engine_config = new JSONObject(ENGINE_JSON_DUPLICATES);
// engine_config.getJSONArray("facets").getJSONObject(0).getJSONArray("selection").put(new JSONArray());
engine.initializeFromJSON(engine_config);
engine.setMode(Engine.Mode.RowBased);
bindings = new Properties();
bindings.put("project", project);
}
@AfterMethod
public void TearDown() {
project = null;
options = null;
engine = null;
bindings = null;
}
/**
* Test for issue 567. Problem doesn't seem to occur when testing
* interactively, but this demonstrates that the facet count cache
* can get stale after row removal operations
*
* @throws Exception
*/
@Test
public void testIssue567() throws Exception {
for (int i = 0; i < 5; i++) {
Row row = new Row(5);
row.setCell(0, new Cell(i < 4 ? "a":"b", null));
project.rows.add(row);
}
engine.getAllRows().accept(project, new CountingRowVisitor(5)) ;
engine.getAllFilteredRows().accept(project, new CountingRowVisitor(4));
Function fc = new FacetCount();
Integer count = (Integer) fc.call(bindings, new Object[] {"a", "value", "Column A"});
Assert.assertEquals(count.intValue(), 4);
EngineDependentOperation op = new RowRemovalOperation(engine_config);
op.createProcess(project, options).performImmediate();
engine.getAllRows().accept(project, new CountingRowVisitor(1)) ;
engine.getAllFilteredRows().accept(project, new CountingRowVisitor(0));
count = (Integer) fc.call(bindings, new Object[] {"a", "value", "Column A"});
Assert.assertEquals(count.intValue(), 0);
}
class CountingRowVisitor implements RowVisitor {
private int count = 0;
private int target;
private CountingRowVisitor(int targetCount) {
target = targetCount;
}
@Override
public boolean visit(Project project, int rowIndex, Row row) {
count++;
return false;
}
@Override
public void start(Project project) {
count = 0;
}
@Override
public void end(Project project) {
Assert.assertEquals(count, target);
}
}
}