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Test that every {…} draws afresh and only a name keeps a pick, a field's and a struct's path tags included

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This commit is contained in:
Lilleman auf Larv
2026-10-05 09:05:35 +02:00
committed by Lillem4n
parent f87807adf7
commit 5b23ca7706
18 changed files with 608 additions and 1767 deletions
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struct_test.go
+34 -14
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@@ -93,8 +93,10 @@ func TestFakeStructFieldTaggedWithAColumnIsThatColumn(t *testing.T) {
switch {
case show(v.Del) != "nil":
t.Fatalf("Del = %s, want nil from a column only ever null", show(v.Del))
case show(v.Mixed) != "x" && show(v.Mixed) != score, show(v.Pair) != "5" && show(v.Pair) != score, show(v.Codes) != score && show(v.Codes) != code:
t.Fatalf("Mixed %s, Pair %s, Codes %s beside score %s and code %s: want each the literal or the draw of the column it reads", show(v.Mixed), show(v.Pair), show(v.Codes), score, code)
case !digitOrNil(show(v.Mixed)) && show(v.Mixed) != "x", !digitOrNil(show(v.Pair)) && show(v.Pair) != "5", !digitOrNil(show(v.Codes)) && show(v.Codes) != "200" && show(v.Codes) != "404":
t.Fatalf("Mixed %s, Pair %s, Codes %s: want each the literal or a draw of the column it reads", show(v.Mixed), show(v.Pair), show(v.Codes))
case score != "nil" && !digitOrNil(score), code != "nil" && code != "200" && code != "404":
t.Fatalf("Score %s, Code %s: want each nil or a draw of its column", score, code)
}
switch {
case v.Code == nil:
@@ -102,11 +104,11 @@ func TestFakeStructFieldTaggedWithAColumnIsThatColumn(t *testing.T) {
case *v.Code != "200" && *v.Code != "404":
t.Fatalf("Code = %q, want nil or a code, never a null's \"\"", *v.Code)
}
switch {
case v.Score == nil && v.Label == "n=":
if v.Score == nil {
nils["score"]++
case v.Score == nil || *v.Score < 1 || *v.Score > 9 || v.Label != "n="+strconv.FormatInt(*v.Score, 10):
t.Fatalf("%+v, want Score nil beside Label n=, or one digit in both", v)
}
if label, _ := strings.CutPrefix(v.Label, "n="); !strings.HasPrefix(v.Label, "n=") || label != "" && !digitOrNil(label) {
t.Fatalf("Label %q, want n= and a draw of src.score, a null as \"\"", v.Label)
}
}
for _, name := range []string{"code", "score"} {
@@ -116,6 +118,28 @@ func TestFakeStructFieldTaggedWithAColumnIsThatColumn(t *testing.T) {
}
}
func digitOrNil(s string) bool {
return s == "nil" || len(s) == 1 && s >= "1" && s <= "9"
}
func TestFakeStructPathTagsReadOnePickOfTheirCategory(t *testing.T) {
f := structData(t)
var v struct {
Leg string `fake:"trip.leg"`
To string `fake:"trip.leg.to"`
Name string `fake:"person"`
Last string `fake:"person.last"`
}
for i := 0; i < 100; i++ {
if err := f.FakeStruct(&v); err != nil {
t.Fatal(err)
}
if v.Leg != v.To || v.Name != "Ada "+v.Last && v.Name != "Bo "+v.Last {
t.Fatalf("%+v, want the tags into trip one leg, and into person one person", v)
}
}
}
func TestFakeStructFillsTaggedFields(t *testing.T) {
a, b := structData(t), structData(t)
people := map[string]string{"Ada": "Lovelace", "Bo": "Ek"}
@@ -133,8 +157,8 @@ func TestFakeStructFillsTaggedFields(t *testing.T) {
switch {
case !reflect.DeepEqual(u, twin):
t.Fatalf("same seed diverged: %+v != %+v", u, twin)
case people[u.First] != u.Last || u.Email != strings.ToLower(u.First)+"@example.com":
t.Fatalf("person fields %q %q %q, want one person drawn across the struct", u.First, u.Last, u.Email)
case people[u.First] != u.Last || u.Email != "ada@example.com" && u.Email != "bo@example.com":
t.Fatalf("person fields %q %q %q, want one person across the path tags, and the template its own draw", u.First, u.Last, u.Email)
case zips[u.Home.City] != u.Home.Zip || u.Work == nil || zips[u.Work.City] != u.Work.Zip:
t.Fatalf("places %+v, %+v, want each nested struct one place, the pointer allocated", u.Home, u.Work)
case u.ID != int64(i+1) || u.Age < 18 || u.Age > 99 || u.Score < 0 || u.Score > 1 || u.Rank == nil || (*u.Rank != 1 && *u.Rank != 2):
@@ -162,8 +186,8 @@ func TestFakeStructFillsEmbeddedFieldsIntoItsRecord(t *testing.T) {
if err := f.FakeStruct(&e); err != nil {
t.Fatal(err)
}
if e.StructFamily == nil || people[e.First] != e.Last || e.Email != strings.ToLower(e.First)+"@example.com" {
t.Fatalf("%+v, %+v: want the promoted fields one person with the struct's own, the embedded pointer allocated", e, e.StructFamily)
if e.StructFamily == nil || people[e.First] != e.Last {
t.Fatalf("%+v, %+v: want the promoted fields one person, the embedded pointer allocated", e, e.StructFamily)
}
}
var skipped struct {
@@ -293,10 +317,6 @@ func TestFakeStructErrors(t *testing.T) {
{&struct {
A string `fake:"{x}"`
}{}, `no field "x"`},
{&struct {
A string `fake:"trip.leg"`
B string `fake:"trip.leg.to"`
}{}, "renders its own draw of what"},
{&struct {
Trip struct {
A int `fake:"{digits(3)}"`