🐛 delete minor unreachable code in test caused by t.Fatal

[Abirdcfly]

Signed-off-by: Abirdcfly fp544037857@gmail.com

t.Fatal* will report test failures and stop the test immediately.
So some of the code is actually unreachable

An example:
https://go.dev/play/p/5K3KZ5RzHhR

package main

import (
	"testing"
)

// LastIndex returns the index of the last instance of x in list, or
// -1 if x is not present.
func LastIndex(list []int, x int) int {
	for i := len(list) - 1; i >= 0; i-- {
		if list[i] == x {
			return i
		}
	}
	return -1
}

func TestLastIndex(t *testing.T) {
	tests := []struct {
		list []int
		x    int
		want int
	}{
		{list: []int{1}, x: 1, want: 0},
		{list: []int{1, 1}, x: 1, want: 3}, // change want:1 to want:3, should fail
		{list: []int{2, 1}, x: 2, want: 0},
		{list: []int{1, 2, 1, 1}, x: 2, want: 1},
		{list: []int{1, 1, 1, 2, 2, 1}, x: 3, want: -1},
		{list: []int{3, 1, 2, 2, 1, 1}, x: 3, want: 111}, // change want:0 to want:111, should fail
	}
	for i, tt := range tests {
		t.Logf("index:%d", i)
		if got := LastIndex(tt.list, tt.x); got != tt.want {
			t.Errorf("LastIndex(%v, %v) = %v, want %v", tt.list, tt.x, got, tt.want)
		}
	}
}

func TestLastIndex2(t *testing.T) {
	tests := []struct {
		list []int
		x    int
		want int
	}{
		{list: []int{1}, x: 1, want: 0},
		{list: []int{1, 1}, x: 1, want: 3}, // change want:1 to want:3, should fail
		{list: []int{2, 1}, x: 2, want: 0},
		{list: []int{1, 2, 1, 1}, x: 2, want: 1},
		{list: []int{1, 1, 1, 2, 2, 1}, x: 3, want: -1},
		{list: []int{3, 1, 2, 2, 1, 1}, x: 3, want: 111}, // change want:0 to want:111, should fail
	}
	for i, tt := range tests {
		t.Logf("index:%d", i)
		if got := LastIndex(tt.list, tt.x); got != tt.want {
			t.Fatalf("LastIndex(%v, %v) = %v, want %v", tt.list, tt.x, got, tt.want) // Fatalf is equivalent to Logf followed by FailNow, so the following code will be unreachable
			continue  // unreachable
		}
	}
}

/* output:

=== RUN   TestLastIndex
    prog.go:32: index:0
    prog.go:32: index:1
    prog.go:34: LastIndex([1 1], 1) = 1, want 3
    prog.go:32: index:2
    prog.go:32: index:3
    prog.go:32: index:4
    prog.go:32: index:5
    prog.go:34: LastIndex([3 1 2 2 1 1], 3) = 0, want 111
--- FAIL: TestLastIndex (0.00s)
=== RUN   TestLastIndex2
    prog.go:53: index:0
    prog.go:53: index:1
    prog.go:55: LastIndex([1 1], 1) = 1, want 3
--- FAIL: TestLastIndex2 (0.00s)
FAIL

*/

[metal3-io-bot]

Hi @Abirdcfly. Thanks for your PR.

I'm waiting for a metal3-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[s3rj1k]

/ok-to-test

[s3rj1k]

does it really fix unreachable code, seems more that it actually removes pointless break ?

[Abirdcfly]

does it really fix unreachable code, seems more that it actually removes pointless break ?

I think what we want to use here is t.Fatal, which means that the test ends when there is an error, so simply removing the break would be fine.

[s3rj1k]

I think what we want to use here is t.Fatal, which means that the test ends when there is an error, so simply removing the break would be fine.

Yea, I am fine with the change, I was pointing out to PR title that is not aligned with the code change, please reword

[Abirdcfly]

/test-ubuntu-integration-main
/test-centos-integration-main

[zhouhao3]

/test-ubuntu-integration-main
/test-centos-integration-main

[dtantsur]

/test-ubuntu-integration-main
/test-centos-integration-main
/approve

[metal3-io-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dtantsur

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [dtantsur]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[zhouhao3]

/lgtm