cmd/fejkdata/main_test.go

@@ -387,11 +387,11 @@ func TestRunInlineTemplate(t *testing.T) {
 func TestRunTemplateMisuse(t *testing.T) {
 	for arg, want := range map[string]string{
 		"{bad":                  "unterminated",
-		"[red,green]":           "names no template either",
+		"[red,green]":           `starts with "["`,
 		`{"format":"x"}`:        "is a string",
 		"name: {/no.such.path}": "no entry",
 		"{/sv_SE.person}":       "write sv_SE.person",
-		"x[1]":                  "names no template either",
+		"x[1]y":                 `"]"`,
 		` ["a","b"] `:           "may not be padded",
 	} {
 		code, out, errb := runOut("--seed", "1", arg)

readme_test.go

@@ -9,13 +9,15 @@ import (
 )
 
 var (
-	jsonBlock = regexp.MustCompile("(?s)```json\n(.*?)```")
-	tsvBlock  = regexp.MustCompile("(?s)```tsv\n(.*?)```")
-	rowsFile  = regexp.MustCompile(`"rows":\s*"([^"]+)"`)
+	jsonBlock  = regexp.MustCompile("(?s)```json\n(.*?)```")
+	tsvBlock   = regexp.MustCompile("(?s)```tsv\n(.*?)```")
+	rowsFile   = regexp.MustCompile(`"rows":\s*"([^"]+)"`)
+	parentName = regexp.MustCompile(`"parent":\s*"([^"]+)"`)
 )
 
-// exampleFiles is a README json block as a data directory's files: the category, and
-// the rows TSV it names, taken from the nearest tsv block above it.
+// exampleFiles is a README json block as a data directory's files: the category, the
+// rows TSV it names, taken from the nearest tsv block above it, and the parent table it
+// names, taken from the nearest json block above it whose rows file is the parent's.
 func exampleFiles(t *testing.T, src string, at int, body string) map[string]string {
 	t.Helper()
 	files := map[string]string{"example.json": body}
@@ -26,6 +28,21 @@ func exampleFiles(t *testing.T, src string, at int, body string) map[string]stri
 		}
 		files[m[1]] = tsv[len(tsv)-1][1]
 	}
+	if m := parentName.FindStringSubmatch(body); m != nil {
+		blocks := jsonBlock.FindAllStringSubmatchIndex(src[:at], -1)
+		for i := len(blocks) - 1; i >= 0; i-- {
+			parent := src[blocks[i][2]:blocks[i][3]]
+			if strings.Contains(parent, `"rows": "`+m[1]+`.tsv"`) {
+				for name, content := range exampleFiles(t, src, blocks[i][0], parent) {
+					if name == "example.json" {
+						name = m[1] + ".json"
+					}
+					files[name] = content
+				}
+				break
+			}
+		}
+	}
 	return files
 }
 

table_test.go

@@ -131,7 +131,7 @@ func TestTableCellsAreStringNodes(t *testing.T) {
 	}
 	bad := writeFiles(t, map[string]string{
 		"place.json": `{"format":"{name}","rows":"place.tsv"}`,
-		"place.tsv":  "name\tzip\nA\t{name}\n",
+		"place.tsv":  "name\tzip\nA\t{name}\nB\t2\n",
 	})
 	if _, err := New(WithoutShippedData(), WithDataPath(bad)); err == nil || !strings.Contains(err.Error(), "place.tsv") || !strings.Contains(err.Error(), `no field "name"`) {
 		t.Fatalf("New = %v, want a cell reading a column refused, naming the file", err)
@@ -413,7 +413,7 @@ func TestTableFences(t *testing.T) {
 func TestSameShapedChoiceIsATable(t *testing.T) {
 	rows := `[{"format":"{name}","name":"Sweden","alpha2":"SE"},{"format":"{name}","name":"Norway","alpha2":"NO"},{"format":"{name}","name":"Denmark","alpha2":"DK"}]`
 	_, err := New(WithoutShippedData(), WithDataPath(writeData(t, map[string]string{"country": rows})))
-	for _, want := range []string{"country.tsv", `"rows"`, "alpha2\tname", "3 "} {
+	for _, want := range []string{"country.tsv", `"rows"`, `alpha2\tname`, "3 "} {
 		if err == nil || !strings.Contains(err.Error(), want) {
 			t.Fatalf("New(same-shaped choice) = %v, want it refused mentioning %q", err, want)
 		}
@@ -446,12 +446,12 @@ func TestTableInAStructTag(t *testing.T) {
 	var v struct {
 		Region   string `fake:"region[12].name"`
 		Locality string `fake:"region[12].locality.code"`
-		Any      string `fake:"{/municipality[Lund].code}"`
+		Any      string `fake:"{/region[Skåne län].timezone}-x"` // the row region[12] names, by name
 	}
 	if err := f.FakeStruct(&v); err != nil {
 		t.Fatal(err)
 	}
-	if v.Region != "Skåne län" || regionOf[municipalityOf[v.Locality]] != "12" || v.Any != "1281" {
+	if v.Region != "Skåne län" || regionOf[municipalityOf[v.Locality]] != "12" || v.Any != "Europe/Stockholm-x" {
 		t.Fatalf("FakeStruct = %+v, want the selected rows", v)
 	}
 }