test decryption of aes encrypted files

tests/aes_encryption.rs

@@ -0,0 +1,78 @@
+use std::io::{self, Read};
+use zip::ZipArchive;
+
+const SECRET_CONTENT: &str = "Lorem ipsum dolor sit amet";
+
+const PASSWORD: &[u8] = b"helloworld";
+
+#[test]
+fn aes256_encrypted_uncompressed_file() {
+    let mut v = Vec::new();
+    v.extend_from_slice(include_bytes!("../tests/data/aes_archive.zip"));
+    let mut archive = ZipArchive::new(io::Cursor::new(v)).expect("couldn't open test zip file");
+
+    let mut file = archive
+        .by_name_decrypt("secret_data_256_uncompressed", PASSWORD)
+        .expect("couldn't find file in archive")
+        .expect("invalid password");
+    assert_eq!("secret_data_256_uncompressed", file.name());
+
+    let mut content = String::new();
+    file.read_to_string(&mut content)
+        .expect("couldn't read encrypted file");
+    assert_eq!(SECRET_CONTENT, content);
+}
+
+#[test]
+fn aes256_encrypted_file() {
+    let mut v = Vec::new();
+    v.extend_from_slice(include_bytes!("../tests/data/aes_archive.zip"));
+    let mut archive = ZipArchive::new(io::Cursor::new(v)).expect("couldn't open test zip file");
+
+    let mut file = archive
+        .by_name_decrypt("secret_data_256", PASSWORD)
+        .expect("couldn't find file in archive")
+        .expect("invalid password");
+    assert_eq!("secret_data_256", file.name());
+
+    let mut content = String::new();
+    file.read_to_string(&mut content)
+        .expect("couldn't read encrypted and compressed file");
+    assert_eq!(SECRET_CONTENT, content);
+}
+
+#[test]
+fn aes192_encrypted_file() {
+    let mut v = Vec::new();
+    v.extend_from_slice(include_bytes!("../tests/data/aes_archive.zip"));
+    let mut archive = ZipArchive::new(io::Cursor::new(v)).expect("couldn't open test zip file");
+
+    let mut file = archive
+        .by_name_decrypt("secret_data_192", PASSWORD)
+        .expect("couldn't find file in archive")
+        .expect("invalid password");
+    assert_eq!("secret_data_192", file.name());
+
+    let mut content = String::new();
+    file.read_to_string(&mut content)
+        .expect("couldn't read encrypted file");
+    assert_eq!(SECRET_CONTENT, content);
+}
+
+#[test]
+fn aes128_encrypted_file() {
+    let mut v = Vec::new();
+    v.extend_from_slice(include_bytes!("../tests/data/aes_archive.zip"));
+    let mut archive = ZipArchive::new(io::Cursor::new(v)).expect("couldn't open test zip file");
+
+    let mut file = archive
+        .by_name_decrypt("secret_data_128", PASSWORD)
+        .expect("couldn't find file in archive")
+        .expect("invalid password");
+    assert_eq!("secret_data_128", file.name());
+
+    let mut content = String::new();
+    file.read_to_string(&mut content)
+        .expect("couldn't read encrypted file");
+    assert_eq!(SECRET_CONTENT, content);
+}