add tests for replaceFormat

test/functions.test.js

@@ -0,0 +1,47 @@
+import crypto from "node:crypto"
+import {replaceFormat} from "../src/functions"
+
+describe("replaceFormat function", () => {
+  it("replaces [local] and [hash:base64:6] correctly", () => {
+    const formatString = "[local]_[hash:base64:6]"
+    const fileName = "testFile"
+    const cssContent = ".myClass { background-color: #000; }"
+    const hash = crypto.createHash("md5").update(cssContent).digest("base64").slice(0, 6)
+
+    const result = replaceFormat(formatString, fileName, cssContent)
+
+    expect(result).toEqual(`${fileName}_${hash}`)
+  })
+
+  it("replaces [local] and [hash:base64] correctly", () => {
+    const formatString = "[local]_[hash:base64:3]"
+    const fileName = "testFile"
+    const cssContent = ".myClass { background-color: #000; }"
+    const hash = crypto.createHash("md5").update(cssContent).digest("base64").slice(0, 3)
+
+    const result = replaceFormat(formatString, fileName, cssContent)
+
+    expect(result).toEqual(`${fileName}_${hash}`)
+  })
+
+  it("replaces [local] and [hash:6] correctly", () => {
+    const formatString = "[local]_[hash:6]"
+    const fileName = "testFile"
+    const cssContent = ".myClass { background-color: #000; }"
+    const hash = crypto.createHash("md5").update(cssContent).digest("hex").slice(0, 6)
+
+    const result = replaceFormat(formatString, fileName, cssContent)
+
+    expect(result).toEqual(`${fileName}_${hash}`)
+  })
+
+  it("replaces [local] correctly", () => {
+    const formatString = "[local]"
+    const fileName = "testFile"
+    const cssContent = ".myClass { background-color: #000; }"
+
+    const result = replaceFormat(formatString, fileName, cssContent)
+
+    expect(result).toEqual(fileName)
+  })
+})