571 lines
30 KiB
Go
571 lines
30 KiB
Go
package fejkdata
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import (
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"os"
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"path/filepath"
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"reflect"
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"regexp"
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"slices"
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"strings"
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"testing"
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)
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// writeFiles writes a data directory from a map of relative file name, extension
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// included, to content.
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func writeFiles(t *testing.T, files map[string]string) string {
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t.Helper()
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dir := t.TempDir()
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for name, content := range files {
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p := filepath.Join(dir, name)
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if err := os.MkdirAll(filepath.Dir(p), 0o755); err != nil {
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t.Fatal(err)
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}
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if err := os.WriteFile(p, []byte(content), 0o644); err != nil {
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t.Fatal(err)
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}
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}
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return dir
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}
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// geo is three linked tables: region <- municipality <- locality.
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func geo() map[string]string {
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return map[string]string{
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"region.json": `{"format":"{name}","rows":"region.tsv","key":"code","name":"name","weight":"population"}`,
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"region.tsv": "code\tname\tpopulation\ttimezone\n01\tStockholms län\t2400000\tEurope/Stockholm\n12\tSkåne län\t1400000\tEurope/Stockholm\n14\tVästra Götalands län\t1750000\tEurope/Stockholm\n",
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"municipality.json": `{"format":"{name}","rows":"municipality.tsv","key":"code","name":"name","parent":"region","weight":"population"}`,
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"municipality.tsv": "code\tname\tregion\tpopulation\n0180\tStockholm\t01\t980000\n0184\tSolna\t01\t85000\n1280\tMalmö\t12\t360000\n1281\tLund\t12\t130000\n1480\tGöteborg\t14\t590000\n",
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"locality.json": `{"format":"{name}","rows":"locality.tsv","key":"code","name":"name","parent":"municipality"}`,
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"locality.tsv": "code\tname\tmunicipality\nL1\tStockholm\t0180\nL2\tSolna\t0184\nL3\tMalmö\t1280\nL4\tLund\t1281\nL5\tGöteborg\t1480\nL6\tHisingen\t1480\nL7\tSandby\t1281\nL8\tSandby\t0184\n",
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}
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}
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var (
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municipalityOf = map[string]string{"L1": "0180", "L2": "0184", "L3": "1280", "L4": "1281", "L5": "1480", "L6": "1480", "L7": "1281", "L8": "0184"}
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regionOf = map[string]string{"0180": "01", "0184": "01", "1280": "12", "1281": "12", "1480": "14"}
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)
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func with(files map[string]string, more map[string]string) map[string]string {
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out := map[string]string{}
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for k, v := range files {
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out[k] = v
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}
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for k, v := range more {
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out[k] = v
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}
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return out
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}
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func TestTableRendersRowsAndColumns(t *testing.T) {
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f := newGenerator(t, writeFiles(t, geo()), WithSeed(1))
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names := map[string]bool{"Stockholms län": true, "Skåne län": true, "Västra Götalands län": true}
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for i := 0; i < 50; i++ {
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if v := fake(t, f, "region"); !names[v] {
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t.Fatalf("region = %q, want a row's format", v)
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}
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if v := fake(t, f, "region.timezone"); v != "Europe/Stockholm" {
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t.Fatalf("region.timezone = %q", v)
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}
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if v := fake(t, f, "region.code"); v != "01" && v != "12" && v != "14" {
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t.Fatalf("region.code = %q", v)
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}
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}
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want := []string{
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"locality", "locality.code", "locality.municipality", "locality.name",
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"municipality", "municipality.code", "municipality.locality", "municipality.locality.code", "municipality.locality.municipality", "municipality.locality.name", "municipality.name", "municipality.population", "municipality.region",
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"region", "region.code", "region.municipality", "region.municipality.code", "region.municipality.locality", "region.municipality.locality.code", "region.municipality.locality.municipality", "region.municipality.locality.name", "region.municipality.name", "region.municipality.population", "region.municipality.region", "region.name", "region.population", "region.timezone",
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}
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if got := f.List(); !reflect.DeepEqual(got, want) {
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t.Fatalf("List() = %v\nwant %v", got, want)
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}
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r, err := f.FakeRecord("region")
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if err != nil {
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t.Fatal(err)
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}
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if r.CSVHeader() != "code,name,population,timezone" {
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t.Fatalf("CSVHeader = %q", r.CSVHeader())
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}
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line := strings.Split(r.CSVLine(), ",")
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if len(line) != 4 || !names[line[1]] || line[3] != "Europe/Stockholm" {
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t.Fatalf("CSVLine = %q, want one row's cells", r.CSVLine())
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}
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for _, c := range r.Columns() {
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if c.DataType != DataTypeString || c.Null {
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t.Fatalf("column %q is %s null=%v, want a string", c.Name, c.DataType, c.Null)
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}
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}
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}
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func TestTableWeightSkewsTheDraw(t *testing.T) {
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f := newGenerator(t, writeFiles(t, geo()), WithSeed(3))
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count := map[string]int{}
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for i := 0; i < 3000; i++ {
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count[fake(t, f, "region.code")]++
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}
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if count["01"] < 1200 || count["12"] > 900 {
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t.Fatalf("region draws %v, want weighted by population (01 ≈ 43%%, 12 ≈ 25%%)", count)
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}
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count = map[string]int{}
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for i := 0; i < 3000; i++ {
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count[fake(t, f, "region[01].municipality.code")]++
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}
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if count["0180"] < 2500 || count["0184"] == 0 || len(count) != 2 {
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t.Fatalf("municipality draws inside 01 %v, want Stockholm ≈ 92%% and Solna the rest", count)
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}
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}
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func TestTableCellsAreStringNodes(t *testing.T) {
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dir := writeFiles(t, map[string]string{
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"w.json": `"x"`,
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"place.json": `{"format":"{zip} {name}","rows":"place.tsv","key":"name"}`,
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"place.tsv": "name\tzip\ttag\nStockholm\t1{digits(2)} {digits(2)}\t{/w}\nTranås\t573 {digits(2)}\tplain\n",
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})
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f := newGenerator(t, dir, WithSeed(1))
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zip := regexp.MustCompile(`^(1\d\d \d\d Stockholm|573 \d\d Tranås)$`)
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for i := 0; i < 50; i++ {
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if v := fake(t, f, "place"); !zip.MatchString(v) {
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t.Fatalf("place = %q, want the cell's tokens expanded", v)
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}
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}
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if v := fake(t, f, "place[Stockholm].tag"); v != "x" {
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t.Fatalf("place[Stockholm].tag = %q, want the reference rendered", v)
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}
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bad := writeFiles(t, map[string]string{
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"place.json": `{"format":"{name}","rows":"place.tsv"}`,
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"place.tsv": "name\tzip\nA\t{name}\nB\t2\n",
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})
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if _, err := New(WithoutShippedData(), WithDataPath(bad)); err == nil || !strings.Contains(err.Error(), "place.tsv") || !strings.Contains(err.Error(), `no field "name"`) {
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t.Fatalf("New = %v, want a cell reading a column refused, naming the file", err)
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}
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}
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func TestTableSelectsARowByKeyOrName(t *testing.T) {
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files := with(geo(), map[string]string{
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"city.json": `{"format":"{name}","rows":"city.tsv","key":"code","name":"name"}`,
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"city.tsv": "code\tname\nSTL\tSt. Louis\nSPI\tSpringfield\n",
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})
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f := newGenerator(t, writeFiles(t, files), WithSeed(1))
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for path, want := range map[string]string{
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"region[12]": "Skåne län",
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"region[Skåne län].code": "12",
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"municipality[1281].locality[Sandby]": "Sandby",
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"municipality[1281].locality[Sandby].code": "L7",
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"municipality[0184].locality[Sandby].code": "L8",
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"city[St. Louis].code": "STL",
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} {
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if got := fake(t, f, path); got != want {
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t.Errorf("Fake(%q) = %q, want %q", path, got, want)
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}
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}
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for path, want := range map[string]string{
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"region[99]": `"99"`,
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"locality[Sandby]": "L7 L8",
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"region[12].code[1]": "not a table",
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"region[]": "empty",
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"region[12": "]",
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"region[12].municipality[1480]": "not inside",
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} {
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if _, err := f.Fake(path); err == nil || !strings.Contains(err.Error(), want) {
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t.Errorf("Fake(%q) = %v, want an error mentioning %s", path, err, want)
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}
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}
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if v := fake(t, f, "municipality[0180].region"); v != "01" {
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t.Fatalf("municipality[0180].region = %q, want the link column's cell", v)
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}
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noKey := writeFiles(t, map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\nx\ny\n"})
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if _, err := newGenerator(t, noKey).Fake("t[x]"); err == nil || !strings.Contains(err.Error(), "no key") {
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t.Fatalf("Fake(t[x]) = %v, want no column to select by", err)
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}
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}
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func TestTableDescendsToALinkedTable(t *testing.T) {
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f := newGenerator(t, writeFiles(t, geo()), WithSeed(2))
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for i := 0; i < 200; i++ {
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if m := fake(t, f, "region[12].municipality.code"); regionOf[m] != "12" {
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t.Fatalf("region[12].municipality.code = %q, outside 12", m)
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}
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if l := fake(t, f, "region[12].locality.code"); regionOf[municipalityOf[l]] != "12" {
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t.Fatalf("region[12].locality.code = %q, outside 12", l)
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}
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if l := fake(t, f, "municipality[1480].locality"); l != "Göteborg" && l != "Hisingen" {
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t.Fatalf("municipality[1480].locality = %q", l)
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}
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if l := fake(t, f, "region.municipality.locality.name"); l == "" {
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t.Fatal("region.municipality.locality.name rendered empty")
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}
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}
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r, err := f.FakeRecord("region[14].municipality")
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if err != nil {
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t.Fatal(err)
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}
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if line := r.CSVLine(); line != "1480,Göteborg,590000,14" {
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t.Fatalf("record inside region 14 = %q", line)
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}
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}
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func TestLinkedTablesDrawConsistently(t *testing.T) {
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spellings := map[string]string{
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"leaf first": `{"format":"{l}|{m}|{r}","l":"{/locality.code}","m":"{/municipality.code}","r":"{/region.code}"}`,
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"root first": `{"format":"{r}|{m}|{l}","r":"{/region.code}","m":"{/municipality.code}","l":"{/locality.code}"}`,
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"skipping one": `{"format":"{r}|{l}","r":"{/region.code}","l":"{/locality.code}"}`,
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"nested": `{"format":"{a}|{l}","a":{"format":"{r}|{m}","r":"{/region.code}","m":"{/municipality.code}"},"l":"{/locality.code}"}`,
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"a record": `{"format":"","l":"{/locality.code}","m":"{/municipality.code}","r":"{/region.code}"}`,
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}
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for name, addr := range spellings {
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f := newGenerator(t, writeFiles(t, with(geo(), map[string]string{"addr.json": addr})), WithSeed(5))
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seen := map[string]bool{}
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for i := 0; i < 300; i++ {
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var parts []string
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if name == "a record" {
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r, err := f.FakeRecord("addr")
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if err != nil {
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t.Fatal(err)
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}
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for _, c := range r.Columns() {
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parts = append(parts, c.Value)
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}
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} else {
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parts = strings.Split(fake(t, f, "addr"), "|")
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}
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var l, m, r string
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for _, p := range parts {
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switch {
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case strings.HasPrefix(p, "L"):
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l = p
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case len(p) == 4:
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m = p
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default:
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r = p
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}
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}
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if m == "" {
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m = municipalityOf[l]
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}
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if municipalityOf[l] != m || regionOf[m] != r {
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t.Fatalf("%s: %v is not one consistent draw", name, parts)
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}
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seen[l] = true
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}
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if len(seen) < 4 {
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t.Fatalf("%s: only %v drawn in 300 renders", name, seen)
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}
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}
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}
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func TestLinkedTablesDrawApartAcrossGroupsAndRepeats(t *testing.T) {
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files := with(geo(), map[string]string{
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"groups.json": `{"format":"{a}|{b}","a":{"format":"{/locality.code}","drawGroup":"g"},"b":"{/locality.code}"}`,
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"many.json": `{"format":"{x}","x":{"format":"{/locality.code}","repeat":8,"separator":"|"}}`,
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})
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f := newGenerator(t, writeFiles(t, files), WithSeed(9))
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for _, path := range []string{"groups", "many"} {
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differ := false
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for i := 0; i < 100 && !differ; i++ {
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parts := strings.Split(fake(t, f, path), "|")
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for _, p := range parts[1:] {
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differ = differ || p != parts[0]
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}
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}
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if !differ {
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t.Fatalf("%s: every draw agreed in 100 renders, want groups and repeat iterations drawn apart", path)
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}
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}
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}
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func TestTableSelectorInAReference(t *testing.T) {
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files := with(geo(), map[string]string{
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"x.json": `{"format":"{a} {b} {c}","a":"{/region[12].name}","b":"{/region[12].municipality.code}","c":"{/region[12].locality.code}"}`,
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})
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f := newGenerator(t, writeFiles(t, files), WithSeed(1))
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for i := 0; i < 100; i++ {
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parts := strings.Fields(fake(t, f, "x"))
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m, l := parts[len(parts)-2], parts[len(parts)-1]
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if !strings.HasPrefix(fake(t, f, "x"), "Skåne län") || regionOf[m] != "12" || municipalityOf[l] != m {
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t.Fatalf("x = %v, want one draw inside region 12", parts)
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}
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}
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for name, c := range map[string]struct{ json, want string }{
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"unknown row": {`"{/region[99].name}"`, `"99"`},
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"ambiguous name": {`"{/locality[Sandby].name}"`, "L7 L8"},
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"not inside": {`"{/region[12].municipality[0180].name}"`, "not inside"},
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"selector on template": {`"{/x[1].a}"`, "not a table"},
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} {
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_, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, with(files, map[string]string{"bad.json": c.json}))))
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if err == nil || !strings.Contains(err.Error(), c.want) {
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t.Errorf("%s: New = %v, want an error mentioning %q", name, err, c.want)
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}
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}
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}
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func TestTableSelectionFences(t *testing.T) {
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rejected := map[string]struct{ json, want string }{
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"bare beside a path": {`"{/region} {/region.name}"`, "reads a path into"},
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"bare beside a linked path": {`"{/region} {/locality.name}"`, "drawGroup"},
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"selected beside unselected": {`"{/region[12].municipality.name} {/municipality.code}"`, "{/region[12].municipality.code}"},
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"two selections": {`"{/region[12].name} {/region[14].name}"`, "drawGroup"},
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"selection beside a descendant": {`"{/region[12].name} {/locality.code}"`, "{/region[12].locality.code}"},
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}
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for name, c := range rejected {
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_, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, with(geo(), map[string]string{"x.json": c.json}))))
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if err == nil || !strings.Contains(err.Error(), c.want) {
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t.Errorf("%s: New = %v, want it rejected mentioning %q", name, err, c.want)
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}
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}
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accepted := map[string]string{
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"a descent beside a path into it": `"{/region.municipality} {/region.municipality.name}"`,
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"selections in two groups": `{"format":"{a} {b}","a":{"format":"{/region[12].name}","drawGroup":"a"},"b":"{/region[14].name}"}`,
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"one selection twice": `"{/region[12].name} {/region[12].timezone} {/region[12].locality.name}"`,
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"a bare table in another group": `{"format":"{a} {b}","a":{"format":"{/region}","drawGroup":"a"},"b":"{/locality.name}"}`,
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}
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for name, json := range accepted {
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f, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, with(geo(), map[string]string{"x.json": json}))), WithSeed(1))
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if err != nil {
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t.Errorf("%s: New = %v, want it accepted", name, err)
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continue
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}
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fake(t, f, "x")
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}
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f := newGenerator(t, writeFiles(t, with(geo(), map[string]string{"x.json": accepted["a descent beside a path into it"]})), WithSeed(1))
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for i := 0; i < 100; i++ {
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if parts := strings.Fields(fake(t, f, "x")); parts[0] != parts[1] {
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t.Fatalf("x = %v, want the descended row and the path into it to agree", parts)
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}
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}
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}
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// The family fence replays each read's selectors through the walk the render uses, so
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// spellings that pin the same rows by different routes agree, and two rows of one
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// table are refused at load rather than found at render.
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func TestTableFamilyFenceReplaysPins(t *testing.T) {
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accepted := map[string]string{
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"skip-level selectors": `"{/region[12].locality[L4].name}|{/region[12].name}"`,
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"descendant then ancestor": `"{/locality[L4].name}|{/region[12].name}"`,
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"two selected levels": `"{/municipality[1281].name}|{/locality[L4].name}"`,
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"nested prefixes": `"{/region[12].municipality[1281].name}|{/municipality[1281].locality[L4].name}"`,
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"selected above a draw": `"{/region[12].locality[L4].name}|{/region[12].municipality.code}"`,
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}
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for name, json := range accepted {
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f, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, with(geo(), map[string]string{"x.json": json}))), WithSeed(1))
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if err != nil {
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t.Errorf("%s: New = %v, want it accepted", name, err)
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continue
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}
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for i := 0; i < 50; i++ {
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v := fake(t, f, "x")
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if strings.Contains(v, "Sandby") || strings.Contains(v, "Malmö") || strings.Contains(v, "1280") || !strings.Contains(v, "Lund") && !strings.Contains(v, "Skåne") {
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t.Fatalf("%s: x = %q, want every part inside region 12 and Lund", name, v)
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}
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}
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}
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rejected := map[string]struct{ json, want string }{
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"two rows of one table": {`"{/region[12].locality[L4].name} {/region[12].locality[L7].name}"`, "drawGroup"},
|
|
"a row outside a selected ancestor": {`"{/region[14].name} {/locality[L4].name}"`, "not inside"},
|
|
}
|
|
for name, c := range rejected {
|
|
_, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, with(geo(), map[string]string{"x.json": c.json}))))
|
|
if err == nil || !strings.Contains(err.Error(), c.want) {
|
|
t.Errorf("%s: New = %v, want it rejected mentioning %q", name, err, c.want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestTableFences(t *testing.T) {
|
|
base := map[string]string{
|
|
"region.json": `{"format":"{name}","rows":"region.tsv","key":"code","name":"name"}`,
|
|
"region.tsv": "code\tname\n01\tA\n12\tB\n",
|
|
}
|
|
rejected := map[string]struct {
|
|
files map[string]string
|
|
want string
|
|
}{
|
|
"rows names a missing file": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`}, "t.tsv"},
|
|
"a TSV nothing names": {with(base, map[string]string{"stray.tsv": "a\nx\n"}), "stray.tsv"},
|
|
"rows outside its folder": {with(base, map[string]string{"t.json": `{"format":"{code}","rows":"../region.tsv"}`}), "beside"},
|
|
"rows not a tsv": {with(base, map[string]string{"t.json": `{"format":"{code}","rows":"region.txt"}`, "region.txt": "code\n1\n"}), ".tsv"},
|
|
"key names no column": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"b"}`, "t.tsv": "a\nx\ny\n"}, `"b"`},
|
|
"name names no column": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","name":"b"}`, "t.tsv": "a\nx\ny\n"}, `"b"`},
|
|
"weight names no column": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","weight":"b"}`, "t.tsv": "a\nx\ny\n"}, `"b"`},
|
|
"parent names no column": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","parent":"b"}`, "t.tsv": "a\nx\ny\n"}, `"b"`},
|
|
"key equals name": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"a","name":"a"}`, "t.tsv": "a\nx\ny\n"}, "drop"},
|
|
"duplicate key": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"a"}`, "t.tsv": "a\nx\nx\n"}, `"x"`},
|
|
"empty key": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"a"}`, "t.tsv": "a\tb\n\ty\nx\tz\n"}, "empty"},
|
|
"a bracket in a key": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"a"}`, "t.tsv": "a\nx[1]\ny\n"}, `"["`},
|
|
"a brace in a name": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"a","name":"n"}`, "t.tsv": "a\tn\nx\tx{1}\ny\ty\n"}, `"{"`},
|
|
"name without a key": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","name":"a"}`, "t.tsv": "a\nx\nx\n"}, "key"},
|
|
"a name that is another row's key": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"a","name":"n"}`, "t.tsv": "a\tn\nx\ty\ny\tz\n"}, `"y"`},
|
|
"a cell reading its family": {with(geo(), map[string]string{"locality.tsv": "code\tname\tmunicipality\nL1\t{/municipality.code}\t0180\nL2\tSolna\t0184\nL3\tMalmö\t1280\nL4\tLund\t1281\nL5\tGöteborg\t1480\n"}), "family"},
|
|
"a format reading its family": {with(geo(), map[string]string{"locality.json": `{"format":"{name} {/region.name}","rows":"locality.tsv","key":"code","name":"name","parent":"municipality"}`}), "family"},
|
|
"a descendant named like an ancestor's column": {with(geo(), map[string]string{"region.tsv": "code\tname\tpopulation\tlocality\n01\tStockholms län\t2400000\tx\n12\tSkåne län\t1400000\ty\n14\tVästra Götalands län\t1750000\tz\n"}), `"locality"`},
|
|
"weight not a number": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","weight":"w"}`, "t.tsv": "a\tw\nx\tmany\ny\t2\n"}, `"many"`},
|
|
"weight zero": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","weight":"w"}`, "t.tsv": "a\tw\nx\t0\ny\t2\n"}, "0"},
|
|
"weight negative": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","weight":"w"}`, "t.tsv": "a\tw\nx\t-1\ny\t2\n"}, "-1"},
|
|
"reserved column name": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\tb.c\nx\ty\n"}, `"b.c"`},
|
|
"duplicate column": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\ta\nx\ty\n"}, `"a"`},
|
|
"empty column name": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\t\nx\ty\n"}, "empty"},
|
|
"short row": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\tb\nx\ty\nz\n"}, "line 3"},
|
|
"no rows": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\n"}, "no rows"},
|
|
"one row": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\nx\n"}, "one row"},
|
|
"empty file": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": ""}, "header"},
|
|
"parent is not a table": {map[string]string{"p.json": `"x"`, "t.json": `{"format":"{a}","rows":"t.tsv","parent":"p"}`, "t.tsv": "a\tp\nx\tx\ny\tx\n"}, "not a table"},
|
|
"parent does not exist": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","parent":"p"}`, "t.tsv": "a\tp\nx\tx\ny\tx\n"}, `"p"`},
|
|
"parent in another folder": {map[string]string{"g/p.json": `{"format":"{k}","rows":"p.tsv","key":"k"}`, "g/p.tsv": "k\nx\ny\n", "t.json": `{"format":"{a}","rows":"t.tsv","parent":"p"}`, "t.tsv": "a\tp\nx\tx\ny\ty\n"}, `"p"`},
|
|
"parent has no key": {map[string]string{"p.json": `{"format":"{k}","rows":"p.tsv"}`, "p.tsv": "k\nx\ny\n", "t.json": `{"format":"{a}","rows":"t.tsv","parent":"p"}`, "t.tsv": "a\tp\nx\tx\ny\ty\n"}, "key"},
|
|
"dangling link": {with(base, map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","parent":"region"}`, "t.tsv": "a\tregion\nx\t01\ny\t99\n"}), `"99"`},
|
|
"childless parent row": {with(base, map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","parent":"region"}`, "t.tsv": "a\tregion\nx\t01\ny\t01\n"}), `"12"`},
|
|
"parent cycle": {map[string]string{"a.json": `{"format":"{k}","rows":"a.tsv","key":"k","parent":"b"}`, "a.tsv": "k\tb\nx\tx\ny\ty\n", "b.json": `{"format":"{k}","rows":"b.tsv","key":"k","parent":"a"}`, "b.tsv": "k\ta\nx\tx\ny\ty\n"}, "cycle"},
|
|
"child named like a column": {with(base, map[string]string{"name.json": `{"format":"{a}","rows":"name.tsv","parent":"region"}`, "name.tsv": "a\tregion\nx\t01\ny\t12\n"}), `"name"`},
|
|
"rows nested in a field": {map[string]string{"t.json": `{"format":"{x}","x":{"format":"{a}","rows":"x.tsv"}}`, "x.tsv": "a\nx\ny\n"}, "category"},
|
|
"rows in a choice item": {map[string]string{"t.json": `[{"format":"{a}","rows":"t.tsv"},"y"]`, "t.tsv": "a\nx\ny\n"}, "category"},
|
|
"unknown table option": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","fields":"a"}`, "t.tsv": "a\nx\ny\n"}, "a table takes"},
|
|
"repeat on a table": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","repeat":2}`, "t.tsv": "a\nx\ny\n"}, "a table takes"},
|
|
"drawGroup on a table": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","drawGroup":"g"}`, "t.tsv": "a\nx\ny\n"}, "a table takes"},
|
|
"option not a string": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":1}`, "t.tsv": "a\nx\ny\n"}, "string"},
|
|
"format names no column": {map[string]string{"t.json": `{"format":"{b}","rows":"t.tsv"}`, "t.tsv": "a\nx\ny\n"}, `no column "b"`},
|
|
"format reads into a column": {map[string]string{"t.json": `{"format":"{a.x}","rows":"t.tsv"}`, "t.tsv": "a\nx\ny\n"}, `"a"`},
|
|
"a reference into a column": {with(base, map[string]string{"t.json": `"{/region.name.x}"`}), "column"},
|
|
"a category referencing itself": {map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv"}`, "t.tsv": "a\n{/t.a}\ny\n"}, "names the category it sits in"},
|
|
}
|
|
for name, c := range rejected {
|
|
_, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, c.files)))
|
|
if err == nil {
|
|
t.Errorf("%s: New = nil error, want it rejected at load", name)
|
|
continue
|
|
}
|
|
if !strings.Contains(err.Error(), c.want) {
|
|
t.Errorf("%s: New = %v, want it to mention %q", name, err, c.want)
|
|
}
|
|
}
|
|
if _, err := New(WithoutShippedData(), WithDataFS(os.DirFS(writeFiles(t, base)))); err != nil {
|
|
t.Fatalf("New(WithDataFS) = %v, want a table loaded from any fs.FS", err)
|
|
}
|
|
inline := newGenerator(t, writeFiles(t, base))
|
|
if _, err := inline.NewTemplate(`{"format":"{a}","rows":"t.tsv"}`); err == nil || !strings.Contains(err.Error(), "inline") {
|
|
t.Fatalf("NewTemplate(rows) = %v, want a table refused inline", err)
|
|
}
|
|
bom := newGenerator(t, writeFiles(t, map[string]string{"t.json": `{"format":"{a}","rows":"t.tsv","key":"a"}`, "t.tsv": "\xEF\xBB\xBFa\tb\nx\t1\ny\t2\n"}), WithSeed(1))
|
|
if v := fake(t, bom, "t[x].b"); v != "1" {
|
|
t.Fatalf("t[x].b under a BOM header = %q, want the mark stripped", v)
|
|
}
|
|
empty := newGenerator(t, writeFiles(t, map[string]string{"t.json": `{"format":"","rows":"t.tsv","key":"a"}`, "t.tsv": "a\tb\nx\t1\ny\t2\n"}), WithSeed(1))
|
|
if v := fake(t, empty, "t"); v != "" {
|
|
t.Fatalf("a record-only table renders %q, want \"\"", v)
|
|
}
|
|
if v := fake(t, empty, "t[y].b"); v != "2" {
|
|
t.Fatalf("t[y].b = %q", v)
|
|
}
|
|
}
|
|
|
|
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 "} {
|
|
if err == nil || !strings.Contains(err.Error(), want) {
|
|
t.Fatalf("New(same-shaped choice) = %v, want it refused mentioning %q", err, want)
|
|
}
|
|
}
|
|
weighted := `[{"format":"{name}","name":"Sweden","weight":2},{"format":"{name}","name":"Norway"}]`
|
|
if _, err := New(WithoutShippedData(), WithDataPath(writeData(t, map[string]string{"country": weighted}))); err == nil || !strings.Contains(err.Error(), "weight") {
|
|
t.Fatalf("New(weighted same-shaped choice) = %v, want it refused naming a weight column", err)
|
|
}
|
|
accepted := map[string]string{
|
|
"nested": `{"format":"{c}","c":` + rows + `}`,
|
|
"a choice field": `[{"format":"{maker} {model}","maker":"BMW","model":["X3","X5"]},{"format":"{maker} {model}","maker":"Ford","model":["Focus","Fiesta"]}]`,
|
|
"different formats": `[{"format":"{a}-{b}","a":"1","b":"2"},{"format":"{b}-{a}","a":"3","b":"4"}]`,
|
|
"different fields": `[{"format":"{a}","a":"1","b":"2"},{"format":"{a}","a":"3"}]`,
|
|
"a string item": `[{"format":"{a}","a":"1"},"x"]`,
|
|
"strings": `["a","b","c"]`,
|
|
}
|
|
for name, json := range accepted {
|
|
if _, err := New(WithoutShippedData(), WithDataPath(writeData(t, map[string]string{"x": json}))); err != nil {
|
|
t.Errorf("%s: New = %v, want it accepted", name, err)
|
|
}
|
|
}
|
|
f := newGenerator(t, writeData(t, map[string]string{"w": `"x"`}))
|
|
if _, err := f.NewTemplate(rows); err != nil {
|
|
t.Fatalf("NewTemplate(same-shaped choice) = %v, want an inline template exempt", err)
|
|
}
|
|
}
|
|
|
|
func TestTableInAStructTag(t *testing.T) {
|
|
f := newGenerator(t, writeFiles(t, geo()), WithSeed(1))
|
|
var v struct {
|
|
Region string `fake:"region[12].name"`
|
|
Locality string `fake:"region[12].locality.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 != "Europe/Stockholm-x" {
|
|
t.Fatalf("FakeStruct = %+v, want the selected rows", v)
|
|
}
|
|
}
|
|
|
|
func TestTableOverridesByLayering(t *testing.T) {
|
|
mine := writeFiles(t, map[string]string{
|
|
"misc/country.json": `{"format":"{name}","rows":"country.tsv","key":"alpha2"}`,
|
|
"misc/country.tsv": "alpha2\tname\nXX\tNowhere\nYY\tElsewhere\n",
|
|
})
|
|
f, err := New(WithDataPath(mine), WithSeed(1))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if v := fake(t, f, "misc.country[XX]"); v != "Nowhere" {
|
|
t.Fatalf("misc.country[XX] = %q, want the layered table", v)
|
|
}
|
|
if paths := f.List(); slices.Contains(paths, "misc.country.alpha3") {
|
|
t.Fatal("List() still offers the shipped table's columns under an overridden category")
|
|
}
|
|
}
|
|
|
|
func TestShippedTables(t *testing.T) {
|
|
f := newGenerator(t, "data/misc", WithSeed(1))
|
|
for path, want := range map[string]string{
|
|
"country[SE]": "Sweden",
|
|
"country[Sweden].alpha3": "SWE",
|
|
"country[SE].numeric": "752",
|
|
"country[SE].tld": ".se",
|
|
"country[SE].calling-code": "46",
|
|
"country[SE].capital": "Stockholm",
|
|
"country[SE].currency": "SEK",
|
|
"country[SE].flag": "🇸🇪",
|
|
"currency[SEK].name": "Swedish Krona",
|
|
"currency[SEK].symbol": "kr",
|
|
"currency[SEK].numeric": "752",
|
|
"currency[SEK].decimals": "2",
|
|
"currency[Euro].code": "EUR",
|
|
"language[sv]": "Swedish",
|
|
"httpstatus[404]": "404 Not Found",
|
|
"httpstatus[404].reason": "Not Found",
|
|
"mimetype[application/json].ext": ".json",
|
|
} {
|
|
if got := fake(t, f, path); got != want {
|
|
t.Errorf("Fake(%q) = %q, want %q", path, got, want)
|
|
}
|
|
}
|
|
re := map[string]*regexp.Regexp{
|
|
"country.numeric": regexp.MustCompile(`^\d{3}$`),
|
|
"country.tld": regexp.MustCompile(`^\.[a-z]{2}$`),
|
|
"country.calling-code": regexp.MustCompile(`^\d{1,4}(-\d{3})?$`),
|
|
"country.capital": regexp.MustCompile(`\p{L}`),
|
|
"country.currency": regexp.MustCompile(`^[A-Z]{3}$`),
|
|
"country.flag": regexp.MustCompile(`^[\x{1F1E6}-\x{1F1FF}]{2}$`),
|
|
"country.languages": regexp.MustCompile(`^[a-z]{2,3}(-[A-Z]{2})?(,[a-z]{2,3}(-[A-Z]{2})?)*$`),
|
|
"currency.numeric": regexp.MustCompile(`^\d{3}$`),
|
|
"currency.decimals": regexp.MustCompile(`^[0-4]$`),
|
|
}
|
|
for i := 0; i < 100; i++ {
|
|
for p, rx := range re {
|
|
if v := fake(t, f, p); !rx.MatchString(v) {
|
|
t.Fatalf("misc %s = %q, want %s", p, v, rx)
|
|
}
|
|
}
|
|
}
|
|
count := map[string]bool{}
|
|
for i := 0; i < 5000; i++ {
|
|
count[fake(t, f, "country.alpha2")] = true
|
|
}
|
|
if len(count) < 200 {
|
|
t.Fatalf("country draws %d distinct rows in 5000, want the full register", len(count))
|
|
}
|
|
}
|