From 1f1cf84ab41ec26ac58c31260667f97507def0d0 Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Tue, 18 Jul 2017 15:14:39 -0500
Subject: add cfail tests

---
 tests/cfail/lock.rs | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 tests/cfail/lock.rs

(limited to 'tests/cfail/lock.rs')

diff --git a/tests/cfail/lock.rs b/tests/cfail/lock.rs
new file mode 100644
index 0000000..f93b79a
--- /dev/null
+++ b/tests/cfail/lock.rs
@@ -0,0 +1,67 @@
+#![deny(warnings)]
+#![feature(const_fn)]
+#![feature(proc_macro)]
+
+#[macro_use(task)]
+extern crate cortex_m_rtfm as rtfm;
+extern crate stm32f103xx;
+
+use rtfm::{app, Threshold};
+
+app! {
+    device: stm32f103xx,
+
+    resources: {
+        STATE: bool = false;
+        MAX: u8 = 0;
+    },
+
+    tasks: {
+        EXTI0: {
+            enabled: true,
+            priority: 1,
+            resources: [MAX, STATE],
+        },
+
+        EXTI1: {
+            enabled: true,
+            priority: 2,
+            resources: [STATE],
+        },
+
+        EXTI2: {
+            enabled: true,
+            priority: 16,
+            resources: [MAX],
+        },
+    },
+}
+
+fn init(_p: init::Peripherals, _r: init::Resources) {}
+
+fn idle() -> ! {
+    loop {}
+}
+
+task!(EXTI0, exti0);
+
+fn exti0(mut t: Threshold, r: EXTI0::Resources) {
+    // OK need to lock to access the resource
+    if r.STATE.claim(&mut t, |state, _| **state) {}
+
+    // OK can claim a resource with maximum ceiling
+    r.MAX.claim_mut(&mut t, |max, _| **max += 1);
+}
+
+task!(EXTI1, exti1);
+
+fn exti1(mut t: Threshold, r: EXTI1::Resources) {
+    // ERROR no need to lock. Has direct access because priority == ceiling
+    if r.STATE.claim(&mut t, |state, _| **state) {
+        //~^ error no method named `claim` found for type
+    }
+
+    if **r.STATE {
+        // OK
+    }
+}
-- 
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