Fit for Developing Software: Framework for Integrated Tests

38.4. Summary

It can be well worthwhile to create custom fixtures so that Fit tables can express tests directly and clearly. We have looked at the development of two example fixtures:

1. SetUpFixture, which is used to add the data from the rows of the table to set up the elements of a collection

2. ImageFixture, which checks the names of images in the table against a 2D array of expected names

Listing 38.3. ImageFixture.java

public class ImageFixture extends Fixture { private String[][] actual; public ImageFixture(String[][] actual2DArrayOfImageFileNames) { actual = actual2DArrayOfImageFileNames; } public void doTable(Parse table) { if (actual.length == 0 && table.parts.more == null) right(table.parts); else if (!rowsMatch(actual, table.parts)) addActualRows(table.parts,actual); } private boolean rowsMatch(String[][] actual, Parse lastRow) { boolean matched = true; for (int i = 0; i < actual.length; i++) { lastRow = lastRow.more; if (!cellsMatch(actual[i],lastRow.parts)) matched = false; } return markWrong(lastRow.more, matched); } private boolean cellsMatch(String[] actual, Parse allCells) { Parse cells = allCells; boolean matched = true; for (int i = 0; i < actual.length; i++) { if (!cellMatches(actual[i], cells)) matched = false; cells = cells.more; } return markWrong(cells, matched); } private boolean cellMatches(String actual, Parse cell) { if (cell.body == null) return false; String image = getImageFileName(cell.body); boolean matches = finalFileName(actual).equals(finalFileName(image)); if (matches) right(cell); else wrong(cell); return matches; } // ... }