github.com/iancoleman/strcase v0.3.0: ToCamel

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 github.com/iancoleman/strcase.ToCamel in pkg:golang/github.com/iancoleman/strcase@v0.3.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/github.com/iancoleman/strcase@v0.3.0
Demonstrate these symbols/APIs:
  - github.com/iancoleman/strcase.ToCamel

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:sha256:918634a8435b2f5402435d3c8f52b1f6c399453d270b720f22bbc1f118db5645","contract":["strcase.ToCamel converts snake_case strings to CamelCase","strcase.ToCamel converts kebab-case and space-separated strings to CamelCase","strcase.ToCamel handles mixed delimiters and preserves existing camel-cased words","strcase.ToCamel returns an empty string when given empty input"],"goal":"verify github.com/iancoleman/strcase.ToCamel in pkg:golang/github.com/iancoleman/strcase@v0.3.0","kind":"HOW","packages":["pkg:golang/github.com/iancoleman/strcase@v0.3.0"],"schemaVersion":1,"symbols":["github.com/iancoleman/strcase.ToCamel"]},"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/github.com/iancoleman/strcase@v0.3.0"],"schemaVersion":1,"subject":"pkg:golang/github.com/iancoleman/strcase@v0.3.0","symbols":["github.com/iancoleman/strcase.ToCamel"],"verifierAdapter":"golang@1"}

module sample

go 1.26.6

require github.com/iancoleman/strcase v0.3.0

github.com/iancoleman/strcase v0.3.0 h1:nTXanmYxhfFAMjZL34Ov6gkzEsSJZ5DbhxWjvSASxEI=
github.com/iancoleman/strcase v0.3.0/go.mod h1:iwCmte+B7n89clKwxIoIXy/HfoL7AsD47ZCWhYzw7ho=

package main

import (
	"fmt"

	"github.com/iancoleman/strcase"
)

func main() {
	cases := []string{
		"test_case",
		"test_data",
		"AnyKind of_string",
		"alreadyCamel",
		"kebab-case-string",
		"space separated string",
		"",
	}

	for _, c := range cases {
		fmt.Printf("ToCamel(%q) = %q\n", c, strcase.ToCamel(c))
	}
}

{
  "schemaVersion": 1,
  "goal": "verify github.com/iancoleman/strcase.ToCamel in pkg:golang/github.com/iancoleman/strcase@v0.3.0",
  "kind": "HOW",
  "packages": [
    "pkg:golang/github.com/iancoleman/strcase@v0.3.0"
  ],
  "symbols": [
    "github.com/iancoleman/strcase.ToCamel"
  ]
}

package main

import (
	"fmt"
	"os"

	"github.com/iancoleman/strcase"
)

func main() {
	// Assertion 1: strcase.ToCamel converts snake_case strings to CamelCase
	{
		input := "test_case_data"
		expected := "TestCaseData"
		actual := strcase.ToCamel(input)
		if actual != expected {
			fmt.Fprintf(os.Stderr, "Assertion 1 failed: expected %q, got %q\n", expected, actual)
			os.Exit(1)
		}
	}

	// Assertion 2: strcase.ToCamel converts kebab-case and space-separated strings to CamelCase
	{
		kebabInput := "kebab-case-string"
		expectedKebab := "KebabCaseString"
		actualKebab := strcase.ToCamel(kebabInput)
		if actualKebab != expectedKebab {
			fmt.Fprintf(os.Stderr, "Assertion 2 failed (kebab): expected %q, got %q\n", expectedKebab, actualKebab)
			os.Exit(1)
		}

		spaceInput := "space separated string"
		expectedSpace := "SpaceSeparatedString"
		actualSpace := strcase.ToCamel(spaceInput)
		if actualSpace != expectedSpace {
			fmt.Fprintf(os.Stderr, "Assertion 2 failed (space): expected %q, got %q\n", expectedSpace, actualSpace)
			os.Exit(1)
		}
	}

	// Assertion 3: strcase.ToCamel handles mixed delimiters and preserves existing camel-cased words
	{
		mixedInput := "AnyKind of_string"
		expectedMixed := "AnyKindOfString"
		actualMixed := strcase.ToCamel(mixedInput)
		if actualMixed != expectedMixed {
			fmt.Fprintf(os.Stderr, "Assertion 3 failed (mixed): expected %q, got %q\n", expectedMixed, actualMixed)
			os.Exit(1)
		}

		camelInput := "alreadyCamel"
		expectedCamel := "AlreadyCamel"
		actualCamel := strcase.ToCamel(camelInput)
		if actualCamel != expectedCamel {
			fmt.Fprintf(os.Stderr, "Assertion 3 failed (camel): expected %q, got %q\n", expectedCamel, actualCamel)
			os.Exit(1)
		}
	}

	// Assertion 4: strcase.ToCamel returns an empty string when given empty input
	{
		emptyInput := ""
		expectedEmpty := ""
		actualEmpty := strcase.ToCamel(emptyInput)
		if actualEmpty != expectedEmpty {
			fmt.Fprintf(os.Stderr, "Assertion 4 failed: expected %q, got %q\n", expectedEmpty, actualEmpty)
			os.Exit(1)
		}
	}

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