ezpkg.io/conveyz

Package conveyz extends the package convey with additional functionality and make it work with gomega. See the original blog post.

Features

• Convey functions to group tests. SConvey to skip and FConvey to focus on a test.
• Tests can be nested, and will be executed in nested order. In the example below, it will print:

[0] → [1] → [1.1]
[0] → [1] → [1.2]
[0] → [2] → [2.1]
[0] → [2] → [2.2]

Differences to the original package

• This package ezpkg.io/conveyz uses gomega for assertions. To me, gomega is more powerful and easier to use.
• With this package, we only need to set FConvey at a single block level. The original package requires to set FocusConvey at every nested level.
• FConvey and SConvey will make go test fail. This is to avoid accidentally skipping tests. To skip tests but not make go test fail, use SkipConveyAsTODO.
• Output looks better with more colors. Stacktrace is nicer.

Examples

See conveyz/examples/conveyz_test.go or stringz/stringz_test.go for more examples.

import (
	"fmt"
	"testing"

	. "ezpkg.io/conveyz"
)

func Test(t *testing.T) {
	Convey("Start", t, func() {
		s := "[0]"
		defer func() { fmt.Printf("\n%s\n", s) }()

		add := func(part string) {
			s = AppendStr(s, part)
		}

		Convey("Test 1:", func() {
			add(" → [1]")
			Ω(s).To(Equal("[0] → [1]"))

			Convey("Test 1.1:", func() {
				add(" → [1.1]")
				Ω(s).To(Equal("[0] → [1] → [1.1]"))
			})
			Convey("Test 1.2:", func() {
				add(" → [1.2]")
				Ω(s).To(Equal("[0] → [1] → [1.2]"))
			})
		})
        // 👇change to FConvey to focus on this block and all children
        // 👇change to SConvey to skip the block
		// 👇change to SkipConveyAsTODO to mark as TODO
		Convey("Test 2:", func() {
			add(" → [2]")
			Ω(s).To(Equal("[0] → [2]"))
			
			Convey("Test 2.1:", func() {
				add(" → [2.1]")
				Ω(s).To(Equal("[0] → [2] → [2.1]"))
			})
			Convey("Test 2.2:", func() {
				add(" → [2.2]")
				Ω(s).To(Equal("[0] → [2] → [2.2]"))
			})
		})
		SkipConvey("failure message", func() {
			// 👆change SkipConvey to Convey to see failure messages
			// 👆change SkipConvey to SkipConveyAsTODO to mark as TODO

			Convey("fail", func() {
				//  Expected
				//      <string>: [0] → [2]
				//  to equal
				//      <string>: this test will fail
				Ω(s).To(Equal("this test will fail"))
			})
			Convey("UNEXPECTED", func() {
				// UNEXPECTED: Refusing to compare <nil> to <nil>.
				//  Be explicit and use BeNil() instead.  This is to avoid mistakes where both sides of an assertion are erroneously uninitialized.
				Ω(nil).To(Equal(nil))
			})
		})
	})
}

func AppendStr(s, part string) string {	return s + part }
func WillPanic() { panic("let's panic! 💥") }
func CallFunc(fn func()) { fn() }

The output will look like this: