golang.org/x/net v0.24.0: atom.B

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.B in pkg:golang/golang.org/x/net@v0.24.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/golang.org/x/net@v0.24.0
Demonstrate these symbols/APIs:
  - golang.org/x/net/html/atom.B

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:f3c1f8764f1143c36be2233d94f2b157863441746ec6d30c0b5be2bbe3fdd2b8","contract":["atom.B is a non-zero Atom representing the HTML 'b' tag","atom.B.String() returns string 'b'","atom.Lookup with byte slice []byte('b') returns atom.B","atom.Lookup with uppercase byte slice []byte('B') returns 0","atom.String with byte slice []byte('b') returns string 'b'","atom.B is distinct from other common HTML atoms such as atom.A, atom.Body, and atom.Br"],"goal":"verify golang.org/x/net/html/atom.B in pkg:golang/golang.org/x/net@v0.24.0","kind":"HOW","packages":["pkg:golang/golang.org/x/net@v0.24.0"],"schemaVersion":1,"symbols":["golang.org/x/net/html/atom.B"]},"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@v0.24.0"],"schemaVersion":1,"subject":"pkg:golang/golang.org/x/net@v0.24.0","symbols":["golang.org/x/net/html/atom.B"],"verifierAdapter":"golang@1"}

module sample

go 1.22

require golang.org/x/net v0.24.0

golang.org/x/net v0.24.0 h1:1PcaxkF854Fu3+lvBIx5SYn9wRlBzzcnHZSiaFFAb0w=
golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8=

package main

import (
	"fmt"

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

func main() {
	// atom.B represents the HTML 'b' tag
	bAtom := atom.B
	fmt.Printf("atom.B integer value: %d\n", bAtom)
	fmt.Printf("atom.B string representation: %s\n", bAtom.String())

	// Lookup resolves a byte slice into an Atom
	lookupResult := atom.Lookup([]byte("b"))
	fmt.Printf("atom.Lookup([]byte(\"b\")) == atom.B: %t\n", lookupResult == atom.B)

	// String retrieves the string from the atom table
	atomString := atom.String([]byte("b"))
	fmt.Printf("atom.String([]byte(\"b\")): %s\n", atomString)
}

{
  "schemaVersion": 1,
  "goal": "verify golang.org/x/net/html/atom.B in pkg:golang/golang.org/x/net@v0.24.0",
  "kind": "HOW",
  "packages": [
    "pkg:golang/golang.org/x/net@v0.24.0"
  ],
  "symbols": [
    "golang.org/x/net/html/atom.B"
  ]
}

package main

import (
	"fmt"
	"os"

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

func main() {
	// 1. atom.B is a non-zero Atom representing the HTML 'b' tag
	{
		if atom.B == 0 {
			fmt.Fprintf(os.Stderr, "FAIL: expected atom.B to be non-zero\n")
			os.Exit(1)
		}
	}

	// 2. atom.B.String() returns string 'b'
	{
		if atom.B.String() != "b" {
			fmt.Fprintf(os.Stderr, "FAIL: expected atom.B.String() to be \"b\", got %q\n", atom.B.String())
			os.Exit(1)
		}
	}

	// 3. atom.Lookup with byte slice []byte("b") returns atom.B
	{
		lookup := atom.Lookup([]byte("b"))
		if lookup != atom.B {
			fmt.Fprintf(os.Stderr, "FAIL: expected atom.Lookup([]byte(\"b\")) to equal atom.B, got %v\n", lookup)
			os.Exit(1)
		}
	}

	// 4. atom.Lookup with uppercase byte slice []byte("B") returns 0
	{
		lookup := atom.Lookup([]byte("B"))
		if lookup != 0 {
			fmt.Fprintf(os.Stderr, "FAIL: expected atom.Lookup([]byte(\"B\")) to be 0, got %v\n", lookup)
			os.Exit(1)
		}
	}

	// 5. atom.String with byte slice []byte("b") returns string 'b'
	{
		str := atom.String([]byte("b"))
		if str != "b" {
			fmt.Fprintf(os.Stderr, "FAIL: expected atom.String([]byte(\"b\")) to be \"b\", got %q\n", str)
			os.Exit(1)
		}
	}

	// 6. atom.B is distinct from other common HTML atoms such as atom.A, atom.Body, and atom.Br
	{
		otherAtoms := []struct {
			name string
			a    atom.Atom
		}{
			{"A", atom.A},
			{"Body", atom.Body},
			{"Br", atom.Br},
		}
		for _, item := range otherAtoms {
			if item.a == atom.B {
				fmt.Fprintf(os.Stderr, "FAIL: atom.B unexpectedly equals atom.%s\n", item.name)
				os.Exit(1)
			}
		}
	}

	fmt.Println("All contract assertions passed.")
}