Kamala Bradecich

Right, so there are quite a few types. People usually group them by what they're meant to do.

You have tools for functional testing. These check the user interface. They click buttons and fill in forms, you know? Selenium is a big one for this.

Then there are API testing tools. These test the 'back-end' bits without a screen. Postman is really popular for that.

Also, you've got performance testing tools. They see how your app handles lots of users at once. JMeter is a classic example.

Basically, some are free open-source tools, and others are paid commercial ones. It all depends on what you need to test.

Cheers.

You're most likely looking for the lyrics to the classic country song by The Judds. It's a very famous tune. The lyrics tell a story about seeing a former partner who has found new love. The singer watches them, happy and settled, and feels a deep sense of longing. They question why they couldn't be the one in that happy relationship, repeatedly asking the heartbreaking question, "Why not me?". It's a simple, powerful song about lost love.

You can think about solutions in a couple of ways. The most common way is based on concentration.

An unsaturated solution can still dissolve more of a substance. Think of a weak cordial. A saturated solution is completely full. It can't dissolve any more solute at that temperature. Then you have a supersaturated solution. This is a special case, holding more solute than it should and is very unstable.

Solutions are also classified by their physical state. For instance, you can have a solid in a liquid (saltwater) or even a gas in a gas (like the air we breathe).