Scaffold v1.0.0

Tests/EmbedderToolTests/StringLiteralEscaperTests.swift

@@ -0,0 +1,37 @@
+import Testing
+@testable import EmbedderTool
+
+@Suite("StringLiteralEscaper") struct StringLiteralEscaperTests {
+
+    @Test("wraps plain content with a single hash delimiter")
+    func plainContent() {
+        let literal = StringLiteralEscaper.rawTripleQuotedLiteral(from: "hello")
+        #expect(literal == "#\"\"\"\nhello\n\"\"\"#")
+    }
+
+    @Test("uses two hashes when content contains a triple-quote followed by one hash")
+    func escalatesForSingleHashCollision() {
+        let literal = StringLiteralEscaper.rawTripleQuotedLiteral(from: "before\"\"\"#after")
+        #expect(literal == "##\"\"\"\nbefore\"\"\"#after\n\"\"\"##")
+    }
+
+    @Test("escalates hash count past the longest run seen in content")
+    func escalatesForLongerHashRun() {
+        let literal = StringLiteralEscaper.rawTripleQuotedLiteral(from: "x\"\"\"####y")
+        #expect(literal.hasPrefix("#####\"\"\""))
+        #expect(literal.hasSuffix("\"\"\"#####"))
+    }
+
+    @Test("accepts empty content")
+    func emptyContent() {
+        let literal = StringLiteralEscaper.rawTripleQuotedLiteral(from: "")
+        #expect(literal == "#\"\"\"\n\n\"\"\"#")
+    }
+
+    @Test("leaves triple-quotes without trailing hashes untouched")
+    func tripleQuotesWithoutHashes() {
+        let literal = StringLiteralEscaper.rawTripleQuotedLiteral(from: "a\"\"\"b")
+        #expect(literal.hasPrefix("#\"\"\""))
+        #expect(literal.hasSuffix("\"\"\"#"))
+    }
+}