test: add tests for convertInlineStyleToMap

With the new code added, it seemed like good opportunity to add some
 tests here.

Signed-off-by: Philip Molares <philip.molares@udo.edu>

html-to-react/src/utils/convertInlineStyleToMap.spec.ts

@@ -0,0 +1,29 @@
+/*
+ * SPDX-FileCopyrightText: 2024 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { convertInlineStyleToMap } from './convertInlineStyleToMap.js'
+
+describe('convertInlineStyleToMap', () => {
+  it('should split on normal ;', () => {
+    const styleObject = convertInlineStyleToMap('display: flex;flex-flow: row;')
+    expect(Object.keys(styleObject)).toHaveLength(2)
+    expect(styleObject.display).toEqual('flex')
+    expect(styleObject.flexFlow).toEqual('row')
+  })
+  it('should not split on a ; in string', () => {
+    const styleObject = convertInlineStyleToMap(
+      "background-image: url('data:image/svg+xml;base64,...');"
+    )
+    expect(Object.keys(styleObject)).toHaveLength(1)
+    expect(styleObject.backgroundImage).toEqual(
+      "url('data:image/svg+xml;base64,...')"
+    )
+  })
+  it('should not split on an escaped ;', () => {
+    const styleObject = convertInlineStyleToMap('content: \\;;')
+    expect(Object.keys(styleObject)).toHaveLength(1)
+    expect(styleObject.content).toEqual('\\;')
+  })
+})