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zip_test.go
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zip_test.go
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package iterutil_test
import (
"fmt"
"slices"
"testing"
"github.com/jub0bs/iterutil"
)
func ExampleZip() {
french := slices.Values([]string{"un", "deux", "trois", "quatre", "cinq"})
english := slices.Values([]string{"one", "two", "three"})
seq := iterutil.Zip(french, english)
for f, e := range seq {
fmt.Println(f, "=>", e)
}
// Output:
// un => one
// deux => two
// trois => three
}
func TestZip(t *testing.T) {
cases := []struct {
desc string
keys []string
values []string
breakWhen func(string, string) bool
want []Pair[string, string]
}{
{
desc: "no break",
keys: []string{"un", "deux", "trois", "quatre", "cinq"},
values: []string{"one", "two", "three"},
want: []Pair[string, string]{
{"un", "one"},
{"deux", "two"},
{"trois", "three"},
},
breakWhen: alwaysFalse2[string, string],
}, {
desc: "break early",
keys: []string{"un", "deux", "trois", "quatre", "cinq"},
values: []string{"one", "two", "three"},
want: []Pair[string, string]{
{"un", "one"},
{"deux", "two"},
},
breakWhen: equal2("trois", "three"),
},
}
for _, tc := range cases {
f := func(t *testing.T) {
keys := slices.Values(tc.keys)
values := slices.Values(tc.values)
got := iterutil.Zip(keys, values)
assertEqual2(t, got, tc.want, tc.breakWhen)
}
t.Run(tc.desc, f)
}
}