Siarhei

Siarhei

Powerful Command-Line Applications in Go: TestParseContent & TestRun failed (pages 53 - 54)

Tests on compare 2 slice of byte fail because there is a difference in the formatting we get after the parseContent() and goldenFile functions. The difference lies in different tabulation.

To bring them to a common state I suggest using the package go get -u github.com/yosssi/gohtml

func formatHTML(data []byte) []byte {
	// Convert to string for manipulation
	content := string(data)

	formattedHTML := gohtml.Format(content)

	// Return the formatted html as []byte
	return []byte(formattedHTML)
}

This formatHTML function will take raw HTML in a []byte format, format it using gohtml, and return the formatted HTML as []byte. Here’s a quick breakdown of how it works:

Conversion to String: string(data) converts the byte slice to a string, as gohtml.Format requires a string input.

Formatting*: gohtml.Format(content) processes the HTML string, adding indentation and spacing for readability.

Returning as []byte: []byte(formattedHTML) converts the formatted string back to []byte.

if !bytes.Equal(formatHTML(expected), formatHTML(result)) {
    t.Logf("golden:\n%s\n", formatHTML(expected))
    t.Logf("result:\n%s\n", formatHTML(result))
    t.Error("Result content doesn't match golden file")
}

First Post!

LeamHall

LeamHall

Hello @Siarhei! Oddly enough, I had that same issue this morning. My text editor (vim) was configured to not expand tabs, I was using tabs for indenting, and the tabstop as set at 2. I solved the issue by editing the main.go file and using spaces instead of tabs.

Where Next?

Popular Pragmatic Bookshelf topics Top

abtin
page 20: … protoc command… I had to additionally run the following go get commands in order to be able to compile protobuf code using go...
New
jesse050717
Title: Web Development with Clojure, Third Edition, pg 116 Hi - I just started chapter 5 and I am stuck on page 116 while trying to star...
New
simonpeter
When I try the command to create a pair of migration files I get an error. user=> (create-migration "guestbook") Execution error (Ill...
New
mikecargal
Title: Hands-On Rust (Chap 8 (Adding a Heads Up Display) It looks like ​.with_simple_console_no_bg​(SCREEN_WIDTH*2, SCREEN_HEIGHT*2...
New
raul
Hi Travis! Thank you for the cool book! :slight_smile: I made a list of issues and thought I could post them chapter by chapter. I’m rev...
New
brunogirin
When trying to run tox in parallel as explained on page 151, I got the following error: tox: error: argument -p/–parallel: expected one...
New
hazardco
On page 78 the following code appears: <%= link_to ‘Destroy’, product, class: ‘hover:underline’, method: :delete, data: { confirm...
New
AufHe
I’m a newbie to Rails 7 and have hit an issue with the bin/Dev script mentioned on pages 112-113. Iteration A1 - Seeing the list of prod...
New
redconfetti
Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
New
gorkaio
root_layout: {PentoWeb.LayoutView, :root}, This results in the following following error: no “root” html template defined for PentoWeb...
New

Other popular topics Top

PragmaticBookshelf
Write Elixir tests that you can be proud of. Dive into Elixir’s test philosophy and gain mastery over the terminology and concepts that u...
New
AstonJ
Or looking forward to? :nerd_face:
498 13326 269
New
brentjanderson
Bought the Moonlander mechanical keyboard. Cherry Brown MX switches. Arms and wrists have been hurting enough that it’s time I did someth...
New
PragmaticBookshelf
Tailwind CSS is an exciting new CSS framework that allows you to design your site by composing simple utility classes to create complex e...
New
Margaret
Hello everyone! This thread is to tell you about what authors from The Pragmatic Bookshelf are writing on Medium.
1147 29994 760
New
PragmaticBookshelf
Use WebRTC to build web applications that stream media and data in real time directly from one user to another, all in the browser. ...
New
AstonJ
We’ve talked about his book briefly here but it is quickly becoming obsolete - so he’s decided to create a series of 7 podcasts, the firs...
New
PragmaticBookshelf
Author Spotlight Jamis Buck @jamis This month, we have the pleasure of spotlighting author Jamis Buck, who has written Mazes for Prog...
New
First poster: bot
zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig. General-purpose programming language and toolchain for maintaini...
New
AstonJ
If you’re getting errors like this: psql: error: connection to server on socket “/tmp/.s.PGSQL.5432” failed: No such file or directory ...
New

Sub Categories: