Scaffold v1.0.0

Tests/EmbedderToolTests/FileExtensionAllowListTests.swift

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+import Testing
+@testable import EmbedderTool
+
+@Suite("FileExtensionAllowList") struct FileExtensionAllowListTests {
+
+    @Test("permits common textual formats")
+    func permitsTextual() {
+        let textual = ["json", "yaml", "yml", "html", "eml", "txt", "md", "xml", "csv", "svg"]
+        for fileExtension in textual {
+            #expect(FileExtensionAllowList.permits(fileExtension))
+        }
+    }
+
+    @Test("ignores letter casing")
+    func caseInsensitive() {
+        #expect(FileExtensionAllowList.permits("JSON"))
+        #expect(FileExtensionAllowList.permits("Html"))
+    }
+
+    @Test("rejects known binary extensions")
+    func rejectsBinary() {
+        let binary = ["png", "jpg", "jpeg", "pdf", "zip", "gif", "ttf", "woff", "mp3", "mp4"]
+        for fileExtension in binary {
+            #expect(!FileExtensionAllowList.permits(fileExtension))
+        }
+    }
+
+    @Test("rejects files without an extension")
+    func rejectsMissingExtension() {
+        #expect(!FileExtensionAllowList.permits(""))
+    }
+}