75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
package gallery
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import (
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"go/ast"
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"go/parser"
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"go/token"
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"os"
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"path/filepath"
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"strings"
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"testing"
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)
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func TestRegistry(t *testing.T) {
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slugs, ids := map[string]bool{}, map[int]bool{}
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known := map[string]bool{}
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for _, c := range Categories {
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known[c.Key] = true
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}
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for _, e := range Entries() {
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if e.Name == "" || e.Zh == "" || e.Summary == "" || e.Demo == nil {
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t.Fatalf("entry %+v is incomplete", e)
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}
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if !known[e.Category] {
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t.Fatalf("%s: unknown category %q", e.Name, e.Category)
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}
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if (e.ID == 0) != (e.Category == "foundations") || e.ID < 0 || e.ID > 500 {
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t.Fatalf("%s: id %d in %s", e.Name, e.ID, e.Category)
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}
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if slugs[e.Slug()] || e.ID > 0 && ids[e.ID] {
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t.Fatalf("%s: duplicate slug or id", e.Slug())
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}
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slugs[e.Slug()], ids[e.ID] = true, true
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if !strings.HasPrefix(e.Code(), "func "+funcName(e.Demo)+"(") {
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t.Fatalf("%s: code snippet %q", e.Slug(), e.Code()[:min(40, len(e.Code()))])
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}
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}
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}
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// Every exported component function appears in a demo.
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func TestEveryComponentHasADemo(t *testing.T) {
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var demos strings.Builder
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for _, e := range Entries() {
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demos.WriteString(e.Code())
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}
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for _, cat := range Categories[1:] {
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files, _ := filepath.Glob(filepath.Join("..", cat.Key, "*.go"))
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for _, f := range files {
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if strings.HasSuffix(f, "_test.go") {
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continue
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}
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src, err := os.ReadFile(f)
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if err != nil {
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t.Fatal(err)
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}
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file, err := parser.ParseFile(token.NewFileSet(), f, src, 0)
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if err != nil {
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t.Fatal(err)
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}
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for _, d := range file.Decls {
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fn, ok := d.(*ast.FuncDecl)
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if !ok || fn.Recv != nil || !fn.Name.IsExported() || fn.Type.Params.NumFields() == 0 {
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continue
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}
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if p, ok := fn.Type.Params.List[0].Type.(*ast.StarExpr); ok {
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if sel, ok := p.X.(*ast.SelectorExpr); ok && sel.Sel.Name == "Context" {
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if call := cat.Key + "." + fn.Name.Name + "("; !strings.Contains(demos.String(), call) {
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t.Errorf("%s has no demo", call)
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}
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}
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}
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}
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}
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}
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}
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