Metamorphic Testing: Testing the Untestable

• Published in: IEEE software Vol. 37; no. 3; pp. 46 - 53
• Main Authors: Segura, Sergio, Towey, Dave, Zhou, Zhi Quan, Chen, Tsong Yueh
• Format: Journal Article
• Language: English
• Published: Los Alamitos IEEE 01.05.2020; IEEE Computer Society
• Subjects: Australia; metamorphic testing; oracle problem; Program processors; Programming; Search engines; Software testing; test case generation

What if we could know that a program is buggy, even if we could not tell whether or not its observed output is correct? Metamorphic testing provides this ability. This article explains the basics of the technique.