First draft of low-level card functionality testing

Cargo.toml

@@ -7,4 +7,5 @@ members = [
     "openpgp-card",
     "openpgp-card-sequoia",
     "scdc",
+    "card-functionality",
 ]

card-functionality/Cargo.toml

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: 2021 Heiko Schaefer <heiko@schaefer.name>
+# SPDX-License-Identifier: MIT OR Apache-2.0
+
+[package]
+name = "card-functionality"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+openpgp-card = { path = "../openpgp-card" }
+anyhow = "1"

card-functionality/src/main.rs

@@ -0,0 +1,67 @@
+// SPDX-FileCopyrightText: 2021 Heiko Schaefer <heiko@schaefer.name>
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+use anyhow::Result;
+use std::env;
+
+use openpgp_card::apdu::PcscClient;
+use openpgp_card::card_app::CardApp;
+use openpgp_card::CardClientBox;
+
+fn test(mut ca: CardApp) -> Result<()> {
+    let res = ca.verify_pw3("12345678");
+    println!("res verify pw3 {:x?}", res);
+
+    let check = ca.check_pw3();
+    println!("has pw3 been verified yet? {:x?}", check);
+
+    let res = ca.set_name("Admin<<Hello");
+    println!("set name res {:x?}", res);
+    res?.check_ok()?;
+
+    let cardholder = ca.get_cardholder_related_data()?;
+    println!("get name1: {}", cardholder.name.expect("name unset"));
+
+    let res = ca.verify_pw1("123456");
+    println!("res verify pw1 {:x?}", res);
+
+    let check = ca.check_pw3();
+    println!("has pw3 been verified yet? {:x?}", check);
+
+    let res = ca.set_name("There<<Hello");
+    println!("set name {:x?}", res);
+
+    let cardholder = ca.get_cardholder_related_data()?;
+    println!("get name2: {}", cardholder.name.expect("name unset"));
+
+    Ok(())
+}
+
+fn main() -> Result<()> {
+    let cards = PcscClient::list_cards()?;
+
+    // Ident of the OpenPGP Card that will be used for tests.
+    let test_card_ident =
+        env::var("TEST_CARD_IDENT").expect("TEST_CARD_IDENT is not set");
+
+    for card in cards {
+        let card_client = Box::new(card) as CardClientBox;
+
+        let mut ca = CardApp::new(card_client);
+
+        let res = ca.select()?;
+        res.check_ok()?;
+
+        let ard = ca.get_app_data()?;
+        let app_id = CardApp::get_aid(&ard)?;
+
+        println!("Opened Card: ident {}", app_id.ident());
+        if app_id.ident() == test_card_ident {
+            println!("Running Test on {}", app_id.ident());
+
+            test(ca)?;
+        }
+    }
+
+    Ok(())
+}