Anthony Fung articles - 57 total
Absolute vs. Relative Co-ordinates for Defining an SVG Path
We previously looked at taking an icon drawn on paper and converting it to SVG code. The process...
Change Colours in a Bitmap Image using Browser CSS Filters
Last week we looked at how we can create greyscale versions of images in real time. Maybe we want to...
Using Browser Filters for Mouseover Effects in Web apps
Last week, we looked at how we can use different images to change the appearances of icons in our Web...
Dynamically Change PNG Icon Colours for Mouseover Effects
We previously looked at how we can dynamically change the colours within an SVG image in a Web app....
Convert Simple Icon Designs from Paper Sketches to SVG Code
When building an app, we sometimes find ourselves needing an icon but don’t have one at hand. Perhaps...
Dynamically Change SVG Icon Colours for Mouseover Effects
When we use images in an app, we sometimes want to be able to change their colour dynamically to...
An Overview of Scaling SVG vs. Bitmap (JPG, PNG) Images
Having looked at the basics of SVG and bitmap formats (like JPG and PNG), we now have a rough idea of...
SVG: An Introduction and Overview vs. Bitmap Formats
In last week’s article, we looked at and compared two common bitmap image formats – JPG and PNG....
JPG vs PNG: Pros and Cons of Each Format When Building Apps
Images can play an important part when building an app. Whether it’s for desktop; mobile; or Web,...
Using Virtual Desktops to Stay Organised and Productive
It’s usual to have many apps open at once while writing software. As a back-end developer, you might...
Static Helper Class vs. Injected Service: Pros and Cons
We’ve all worked on apps and services that weren’t as clearly written as they could have been. While...
How Programming to an Interface Affects Testability
We’ve previously explored how a slight change in mindset can make our code more flexible. Thinking in...
How to Replace Third-Party Services at Development Time
Identifying abstractions and programming to interfaces can be helpful. We’ve previously seen how...
How to Refactor Duplicate Methods with Subtle Differences
In last week’s article, we explored a real-world example of how programming to an interface can make...
How Coding to an Interface Can Reduce the Impact of Code Changes
In last week’s article, we took a high-level look at how programming to an interface helps us write...
How Coding to an Interface Can Increase Your Code’s Flexibility
A few principles often come to mind when building software. While Program to an Interface doesn’t...
How to Measure the Effectiveness of Unit Tests Using Code Coverage
We sometimes talk about code coverage when discussing the quality of our unit tests. This week we’ll...
Parallelise Your NUnit Tests to Be More Productive and Waste Less Time
We previously touched on how NUnit runs tests sequentially by default. While individual tests...
How to Write NUnit Tests for Many Classes with Generic Test Fixtures
We previously looked at how we can run a single written test with multiple data. By adding parameters...
3 Ways to Include JSON Directly in Your C# Test Code
Hi Friends. In last week’s article, we briefly touched on how JSON can be tricky to include in unit...
How to Make JSON String Comparisons in Unit Tests Less Brittle
We previously looked at how we can extract longer texts used as expected values into separate files...
How to Make Sure Your Test Resources Are Always Available
In last week's newsletter, we explored a tip for keeping tests with complex comparison data tidy. By...
Simplify Unit Tests by Storing Complex Data in Resource Files
The structures of test projects are usually simpler than those of the projects they validate. As each...
How to Easily Create New Mock Instances in Unit Tests
We’re often told we should keep components light and focussed when building software. And with good...
3 Useful NUnit Attributes for Your C# Tests You Shouldn’t Forget About
We’ve written a few tests in this series now. You’ll have seen we decorate methods with Test to tell...
3 Ways to Organise and Tidy Your C# Unit Test Projects
When writing tests, we often start with what we think will be typical use cases for our code. It’s...
How to Add Tests for Existing Code with Methods That Aren’t Public
Writing tests alongside your code can often be helpful. It can help you think of edge cases where...
What Alternatives Are There to Use in Unit Tests Instead of Mocks?
In our exploration of using mocks in tests, we’ve looked at quite a few topics in detail. We’ve...
How to Use Strict Mocking in Moq to Automatically Verify All Setups
When using mocks, we often set them up to return values for use in the logic we’re testing. In...
How to Set Up Mocks in Unit Tests to Return Default Objects
If you’ve been following this series, you’ll have noticed that we use mocks often in our unit and...