Oracle Visual Builder: Applications That Outlive Their First Release · Module 16 · Testing an application with no test framework
Choosing data that would fail
Lesson 157 of 176 · 3 min
EMPTY LISTS, MISSING FIELDS, VERY LONG STRINGS, NON-LATIN NAMES, and A RECORD WITH FORTY LINES. Data chosen to BREAK IT rather than to DEMONSTRATE IT. Your test data is the reason your application works, and it was chosen for convenience without anybody deciding to choose it. AN EMPTY LIST IS THE FIRST AND MOST OFTEN MISSED. Every new customer sees it, and it is the state most likely to render as a blank rectangle indistinguishable from a broken page — Module 7 Lesson 8. It is also the easiest to produce: a filter matching nothing. MISSING FIELDS ARE SECOND, AND REAL RECORDS ARE FULL OF THEM. Your test record has every field populated because you created it; a record from the business has a blank middle name, no second address line, an empty note. A layout with a hole where an empty field sits looks broken — Module 3 Lesson…
The full lesson is part of the course
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