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Tests: a typed column holds one value bounded by its arguments, and a lone null CSV column is a blank line

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This commit is contained in:
Lilleman auf Larv
2026-09-15 14:31:27 +02:00
parent 94dc562c6c
commit 770dca507a
2 changed files with 59 additions and 48 deletions
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record_test.go
+15 -13
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@@ -134,19 +134,21 @@ func TestRecordCSV(t *testing.T) {
}
func TestRecordCSVEmptyValueStaysARow(t *testing.T) {
for _, body := range []string{`{"format": "", "note": ""}`, `{"format": "", "note": null}`} {
f := newGenerator(t, writeData(t, map[string]string{"blank": body}), WithSeed(1))
r, err := f.FakeRecord("blank")
if err != nil {
t.Fatal(err)
}
rows, err := csv.NewReader(strings.NewReader(r.CSVHeader() + "\n" + r.CSVLine() + "\n")).ReadAll()
if err != nil {
t.Fatalf("csv: %v", err)
}
if len(rows) != 2 || len(rows[1]) != 1 || rows[1][0] != "" {
t.Fatalf("%s: one empty column parsed to %v, want a header and one row of one empty field", body, rows)
}
dir := writeData(t, map[string]string{"blank": `{"format": "", "note": ""}`, "gone": `{"format": "", "note": null}`})
f := newGenerator(t, dir, WithSeed(1))
r, err := f.FakeRecord("blank")
if err != nil {
t.Fatal(err)
}
rows, err := csv.NewReader(strings.NewReader(r.CSVHeader() + "\n" + r.CSVLine() + "\n")).ReadAll()
if err != nil {
t.Fatalf("csv: %v", err)
}
if len(rows) != 2 || len(rows[1]) != 1 || rows[1][0] != "" {
t.Fatalf("one empty column parsed to %v, want a header and one row of one empty field", rows)
}
if r, err := f.FakeRecord("gone"); err != nil || r.CSVLine() != "" {
t.Fatalf("a lone null column wrote %q, %v; want the blank line PostgreSQL's COPY reads as null", r.CSVLine(), err)
}
}