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labels: add test for Builder.Range 

Including mutating the Builder being Ranged over.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
This commit is contained in:
Bryan Boreham 2023-03-16 13:25:55 +00:00
parent 8f6d5dcd45
commit 3c4ab7a069
1 changed files with 14 additions and 1 deletions
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15
model/labels/labels_test.go
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@ -529,6 +529,11 @@ func TestBuilder(t *testing.T) {
base: FromStrings("aaa", "111"),
want: FromStrings("aaa", "111"),
},
{
base: FromStrings("aaa", "111", "bbb", "222", "ccc", "333"),
set: []Label{{"aaa", "444"}, {"bbb", "555"}, {"ccc", "666"}},
want: FromStrings("aaa", "444", "bbb", "555", "ccc", "666"),
},
{
base: FromStrings("aaa", "111", "bbb", "222", "ccc", "333"),
del: []string{"bbb"},
@ -591,7 +596,15 @@ func TestBuilder(t *testing.T) {
b.Keep(tcase.keep...)
}
b.Del(tcase.del...)
require.Equal(t, tcase.want, b.Labels(tcase.base))
require.Equal(t, tcase.want, b.Labels(EmptyLabels()))
// Check what happens when we call Range and mutate the builder.
b.Range(func(l Label) {
if l.Name == "aaa" || l.Name == "bbb" {
b.Del(l.Name)
}
})
require.Equal(t, tcase.want.BytesWithoutLabels(nil, "aaa", "bbb"), b.Labels(tcase.base).Bytes(nil))
})
}
}