Five Inconvenient Truths about REST: 2 — HTTP Verbs ≠ “REST Verbs”

Reuse is often a good thing, but only as long as the mismatch between your needs and the functionality offered by the tool is relatively small. There’s definitely a lot of merit in reusing the HTTP verbs as “REST…

Google BigQuery

Experiences with BigQuery

Five Inconvenient Truths about REST: 5 — Hierarchical URIs Will Kill You in the End

One of the key concepts of RESTful webservices is the use of resources, and in particular how the resource URIs should look like. One should not underestimate the value of giving domain…

The True Meaning of Line Coverage

One can discuss for hours and days how much test coverage one really needs. Should it be 60%, or closer to 80%? Or should it always be 100%? But maybe it’s better to investigate for a moment what the term “line coverage” really means, and what it tells us about the…

Five Inconvenient Truths about REST: 1 — GET Calls Are Never Nullipotent

These last years, REST has been my default choice as the protocol for automated interaction between computer systems. It’s easy to understand and easy to implement, but there are also a couple of things…

Hvor mye testdekning skal du ha?

Når jeg er ute i oppdrag hos kunder kommer spørsmålet før eller siden: hvor mye testdekning skal man egentlig ha? Det korte, prinsipielle svaret er: 100%. Det lange, korrekte svaret er: du skal ha testdekning på alt du bryr deg om. Men siden du ikke skal ha kildekode i…

Software Libraries: Technical Debt in Foreign Currencies

The term “technical debt” is a metaphor coined by Ward Cunningham in 1992, trying to explain why every software project over the course of time continues to need technical maintenance. There is something strange about how code can…

Slutt å bruke mock-rammeverk!

Jeg kommer ofte bort i prosjekter som bruker mock-rammeverk for å skrive enhetstester. Og selv om det er bra at man har tatt i bruk et verktøy som gjør det lettere å skrive enhetstester, slik at det i hvert fall blir skrivet noen enhetstester, er ikke jeg særlig glad i disse…