golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7: atom.Table

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify golang.org/x/net/html/atom.Table in pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7
Demonstrate these symbols/APIs:
  - golang.org/x/net/html/atom.Table

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:5d9b3debd5cdb4a7877d5f8db45c9813c211d70c4117f652271f2d223dfbd0d8","contract":["atom.Table represents the HTML table element and is non-zero","atom.Table.String returns string \"table\"","atom.Lookup with byte slice \"table\" returns atom.Table","atom.String with byte slice \"table\" returns string \"table\"","atom.Lookup returns 0 for unrecognized tag names"],"goal":"verify golang.org/x/net/html/atom.Table in pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7","kind":"HOW","packages":["pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7"],"schemaVersion":1,"symbols":["golang.org/x/net/html/atom.Table"]},"contractCommand":["go","run","./test"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"golang","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"go","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7"],"schemaVersion":1,"subject":"pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7","symbols":["golang.org/x/net/html/atom.Table"],"verifierAdapter":"golang@1"}

module example.com/sample

go 1.22

require golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7

golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7 h1:fHDIZ2oxGnUZRN6WgWFCbYBjH9uqVPRCUVUDhs0wnbA=
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

package main

import (
	"fmt"

	"golang.org/x/net/html/atom"
)

// GetTableAtom returns the atom representation of the HTML table element.
func GetTableAtom() atom.Atom {
	return atom.Table
}

func main() {
	a := GetTableAtom()
	fmt.Printf("Atom: %s (value: %d)\n", a.String(), a)
}

{
  "schemaVersion": 1,
  "goal": "verify golang.org/x/net/html/atom.Table in pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7",
  "kind": "HOW",
  "packages": [
    "pkg:golang/golang.org/x/net@v0.0.0-20190813141303-74dc4d7220e7"
  ],
  "symbols": [
    "golang.org/x/net/html/atom.Table"
  ]
}

package main

import (
	"fmt"
	"os"

	"golang.org/x/net/html/atom"
)

func main() {
	// 1. atom.Table represents the HTML table element and is non-zero
	if atom.Table == 0 {
		fmt.Fprintf(os.Stderr, "FAIL: expected atom.Table to be non-zero\n")
		os.Exit(1)
	}

	// 2. atom.Table.String returns string "table"
	if s := atom.Table.String(); s != "table" {
		fmt.Fprintf(os.Stderr, "FAIL: expected atom.Table.String() == %q, got %q\n", "table", s)
		os.Exit(1)
	}

	// 3. atom.Lookup with byte slice "table" returns atom.Table
	if a := atom.Lookup([]byte("table")); a != atom.Table {
		fmt.Fprintf(os.Stderr, "FAIL: expected atom.Lookup([]byte(\"table\")) == atom.Table, got %v\n", a)
		os.Exit(1)
	}

	// 4. atom.String with byte slice "table" returns string "table"
	if s := atom.String([]byte("table")); s != "table" {
		fmt.Fprintf(os.Stderr, "FAIL: expected atom.String([]byte(\"table\")) == %q, got %q\n", "table", s)
		os.Exit(1)
	}

	// 5. atom.Lookup returns 0 for unrecognized tag names
	if a := atom.Lookup([]byte("unrecognized_html_tag_name")); a != 0 {
		fmt.Fprintf(os.Stderr, "FAIL: expected atom.Lookup for unknown tag to return 0, got %v\n", a)
		os.Exit(1)
	}
	if a := atom.Lookup([]byte("TABLE")); a != 0 {
		fmt.Fprintf(os.Stderr, "FAIL: expected atom.Lookup for uppercase tag to return 0, got %v\n", a)
		os.Exit(1)
	}

	fmt.Println("PASS: all contract assertions passed")
}