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Fail a printed Fake value the Go example test cannot replay

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This commit is contained in:
Lilleman auf Larv
2026-09-22 22:08:34 +02:00
committed by Lillem4n
parent f689afee09
commit f8d6109b9d
1 changed files with 11 additions and 4 deletions
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doc_test.go
+11 -4
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@@ -249,7 +249,10 @@ func headerAbove(headers []*ast.CommentGroup, pos token.Pos) string {
return text return text
} }
var printedFake = regexp.MustCompile(`f\.Fake\("([^"]+)"\)\s*// ("(?:[^"\\]|\\.)*")`) var (
printedCall = regexp.MustCompile(`(?m)^.*Fake\w*\(.*//\s*".*$`)
printedFake = regexp.MustCompile(`\.Fake\("([^"]+)"\)\s*//\s*("(?:[^"\\]|\\.)*")`)
)
// TestGoExamplesPrintWhatTheyRender replays each Go example's printed Fake calls on seed 42. // TestGoExamplesPrintWhatTheyRender replays each Go example's printed Fake calls on seed 42.
func TestGoExamplesPrintWhatTheyRender(t *testing.T) { func TestGoExamplesPrintWhatTheyRender(t *testing.T) {
@@ -258,15 +261,19 @@ func TestGoExamplesPrintWhatTheyRender(t *testing.T) {
if err != nil { if err != nil {
t.Fatal(err) t.Fatal(err)
} }
calls := printedFake.FindAllStringSubmatch(string(src), -1) lines := printedCall.FindAllString(string(src), -1)
if calls == nil { if lines == nil {
t.Errorf("%s prints no seeded Fake, so nothing holds its example to a render", name) t.Errorf("%s prints no seeded Fake, so nothing holds its example to a render", name)
} }
f, err := New(WithSeed(42)) f, err := New(WithSeed(42))
if err != nil { if err != nil {
t.Fatal(err) t.Fatal(err)
} }
for _, c := range calls { for _, line := range lines {
c := printedFake.FindStringSubmatch(line)
if c == nil {
t.Fatalf("%s prints a value this test cannot replay; spell it f.Fake(\"path\") // \"value\": %s", name, line)
}
want, err := strconv.Unquote(c[2]) want, err := strconv.Unquote(c[2])
if err != nil { if err != nil {
t.Fatalf("%s prints %s: %v", name, c[2], err) t.Fatalf("%s prints %s: %v", name, c[2], err)