From acf9bd7909a4f6a68d974cabff96c4b72791c201 Mon Sep 17 00:00:00 2001
From: Tim Chevalier <chevalier@alum.wellesley.edu>
Date: Wed, 4 May 2011 11:32:06 -0700
Subject: Test cases for pred / check stuff

---
 src/test/compile-fail/impure-pred.rs      | 17 +++++++++++++++++
 src/test/compile-fail/not-a-pred-2.rs     |  1 +
 src/test/compile-fail/not-a-pred-3.rs     |  1 +
 src/test/compile-fail/not-a-pred-check.rs | 12 ++++++++++++
 src/test/compile-fail/not-pred-args.rs    |  1 +
 src/test/compile-fail/pred-not-bool.rs    | 13 +++++++++++++
 src/test/run-pass/pred-check.rs           | 11 +++++++++++
 src/test/run-pass/pred.rs                 |  4 +---
 8 files changed, 57 insertions(+), 3 deletions(-)
 create mode 100644 src/test/compile-fail/impure-pred.rs
 create mode 100644 src/test/compile-fail/not-a-pred-check.rs
 create mode 100644 src/test/compile-fail/pred-not-bool.rs
 create mode 100644 src/test/run-pass/pred-check.rs

(limited to 'src/test')

diff --git a/src/test/compile-fail/impure-pred.rs b/src/test/compile-fail/impure-pred.rs
new file mode 100644
index 00000000..b5ebc10e
--- /dev/null
+++ b/src/test/compile-fail/impure-pred.rs
@@ -0,0 +1,17 @@
+// -*- rust -*-
+// xfail-boot
+// xfail-stage0
+// error-pattern: impure function
+
+fn g() -> () {}
+
+pred f(int q) -> bool { 
+  g();
+  ret true;
+}
+
+fn main() {
+  auto x = 0;
+
+  check f(x); 
+}
diff --git a/src/test/compile-fail/not-a-pred-2.rs b/src/test/compile-fail/not-a-pred-2.rs
index c8ac4a08..07ea13b3 100644
--- a/src/test/compile-fail/not-a-pred-2.rs
+++ b/src/test/compile-fail/not-a-pred-2.rs
@@ -1,5 +1,6 @@
 // -*- rust -*-
 // xfail-boot
+// xfail-stage0
 
 // error-pattern: non-predicate
 
diff --git a/src/test/compile-fail/not-a-pred-3.rs b/src/test/compile-fail/not-a-pred-3.rs
index ea1b6cc0..f4dafd20 100644
--- a/src/test/compile-fail/not-a-pred-3.rs
+++ b/src/test/compile-fail/not-a-pred-3.rs
@@ -1,5 +1,6 @@
 // -*- rust -*-
 // xfail-boot
+// xfail-stage0
 
 // error-pattern: expected the constraint name
 
diff --git a/src/test/compile-fail/not-a-pred-check.rs b/src/test/compile-fail/not-a-pred-check.rs
new file mode 100644
index 00000000..55698ad2
--- /dev/null
+++ b/src/test/compile-fail/not-a-pred-check.rs
@@ -0,0 +1,12 @@
+// -*- rust -*-
+// xfail-boot
+// xfail-stage0
+// error-pattern: non-predicate
+
+fn f(int q) -> bool { ret true; }
+
+fn main() {
+  auto x = 0;
+
+  check f(x); 
+}
diff --git a/src/test/compile-fail/not-pred-args.rs b/src/test/compile-fail/not-pred-args.rs
index c92b4ff9..7fe6220a 100644
--- a/src/test/compile-fail/not-pred-args.rs
+++ b/src/test/compile-fail/not-pred-args.rs
@@ -1,5 +1,6 @@
 // -*- rust -*-
 // xfail-boot
+// xfail-stage0
 
 // error-pattern: Constraint args must be
 
diff --git a/src/test/compile-fail/pred-not-bool.rs b/src/test/compile-fail/pred-not-bool.rs
new file mode 100644
index 00000000..c0d19ef2
--- /dev/null
+++ b/src/test/compile-fail/pred-not-bool.rs
@@ -0,0 +1,13 @@
+// -*- rust -*-
+
+// error-pattern: mismatched types
+
+// this checks that a pred with a non-bool return
+// type is rejected, even if the pred is never used
+
+pred bad(int a) -> int {
+  ret 37;
+}
+
+fn main() {
+}
diff --git a/src/test/run-pass/pred-check.rs b/src/test/run-pass/pred-check.rs
new file mode 100644
index 00000000..e0997564
--- /dev/null
+++ b/src/test/run-pass/pred-check.rs
@@ -0,0 +1,11 @@
+// -*- rust -*-
+// xfail-boot
+// xfail-stage0
+
+pred f(int q) -> bool { ret true; }
+
+fn main() {
+  auto x = 0;
+
+  check f(x); 
+}
diff --git a/src/test/run-pass/pred.rs b/src/test/run-pass/pred.rs
index 022e1fc4..b4d003a8 100644
--- a/src/test/run-pass/pred.rs
+++ b/src/test/run-pass/pred.rs
@@ -1,12 +1,10 @@
 // xfail-stage0
-// xfail-stage1
-// xfail-stage2
 // -*- rust -*-
 
 fn f(int a, int b) : lt(a,b) {
 }
 
-fn lt(int a, int b) -> bool {
+pred lt(int a, int b) -> bool {
   ret a < b;
 }
 
-- 
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