Allow << to be valid

hpi-schul-cloud · Feb 4, 2025 · dcf6826 · dcf6826
1 parent c1380ef
commit dcf6826
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Showing 2 changed files with 21 additions and 3 deletions.
diff --git a/src/utils/validation/containsOpeningTag.ts b/src/utils/validation/containsOpeningTag.ts
@@ -1,5 +1,5 @@
 export const containsOpeningTagFollowedByString = (input: string): boolean => {
-	const regex = /<\S+/;
+	const regex = /<\S+(?<!<)/;
 	const result = regex.test(input);
 
 	return result;

diff --git a/src/utils/validation/containsOpeningTag.unit.ts b/src/utils/validation/containsOpeningTag.unit.ts
@@ -45,9 +45,27 @@ describe("containsOpeningTagFollowedByString", () => {
 		});
 	});
 
-	describe("when < is followed by a <", () => {
+	describe("when < followed by a < with a string", () => {
+		it("should return false", () => {
+			expect(containsOpeningTagFollowedByString("< <asd ")).toBe(true);
+		});
+	});
+
+	describe("when string contains two < followed by a string", () => {
 		it("should return true", () => {
-			expect(containsOpeningTagFollowedByString("<<")).toBe(true);
+			expect(containsOpeningTagFollowedByString("<asd <asd")).toBe(true);
+		});
+	});
+
+	describe("when < is followed by a <", () => {
+		it("should return false", () => {
+			expect(containsOpeningTagFollowedByString("<<")).toBe(false);
+		});
+	});
+
+	describe("when < is followed by a <", () => {
+		it("should return false", () => {
+			expect(containsOpeningTagFollowedByString("< <")).toBe(false);
 		});
 	});