chore: Implement toUpperCamelCase

Author: koki-develop

lib/util/util.spec.ts

@@ -0,0 +1,32 @@
+import { describe, expect, test } from "bun:test";
+import { toUpperCamelCase } from "./util";
+
+describe("toUpperCamelCase", () => {
+  test.each([
+    ["foo/bar", "FooBar"],
+    ["foo/bar/baz", "FooBarBaz"],
+    ["foo/bar/baz/qux", "FooBarBazQux"],
+
+    ["foo//bar", "FooBar"],
+    ["foo//bar//baz", "FooBarBaz"],
+    ["foo//bar//baz//qux", "FooBarBazQux"],
+
+    ["foo-bar", "FooBar"],
+    ["foo-bar-baz", "FooBarBaz"],
+    ["foo-bar-baz-qux", "FooBarBazQux"],
+
+    ["foo--bar", "FooBar"],
+    ["foo--bar--baz", "FooBarBaz"],
+    ["foo--bar--baz--qux", "FooBarBazQux"],
+
+    ["foo_bar", "FooBar"],
+    ["foo_bar_baz", "FooBarBaz"],
+    ["foo_bar_baz_qux", "FooBarBazQux"],
+
+    ["foo__bar", "FooBar"],
+    ["foo__bar__baz", "FooBarBaz"],
+    ["foo__bar__baz__qux", "FooBarBazQux"],
+  ])("converts %s to %s", (input, expected) => {
+    expect(toUpperCamelCase(input)).toBe(expected);
+  });
+});

lib/util/util.ts

@@ -0,0 +1,6 @@
+export function toUpperCamelCase(str: string): string {
+  return str
+    .split(/[-_\/]/)
+    .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
+    .join("");
+}