1 package emperror
2
3 import (
4 "fmt"
5 "regexp"
6 "strings"
7 "testing"
8 )
9
10 func testFormatRegexp(t *testing.T, n int, arg interface{}, format, want string) {
11 got := fmt.Sprintf(format, arg)
12 gotLines := strings.SplitN(got, "\n", -1)
13 wantLines := strings.SplitN(want, "\n", -1)
14
15 if len(wantLines) > len(gotLines) {
16 t.Errorf("test %d: wantLines(%d) > gotLines(%d):\n got: %q\nwant: %q", n+1, len(wantLines), len(gotLines), got, want)
17 return
18 }
19
20 for i, w := range wantLines {
21 match, err := regexp.MatchString(w, gotLines[i])
22 if err != nil {
23 t.Fatal(err)
24 }
25 if !match {
26 t.Errorf("test %d: line %d: fmt.Sprintf(%q, err):\n got: %q\nwant: %q", n+1, i+1, format, got, want)
27 }
28 }
29 }
30
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