Add minimal example using cargo

... including a test (for which we add python3 as test dependency).

5 files changed, 46 insertions, 0 deletions

diff --git a/test/rust/TARGETS b/test/rust/TARGETS
index 713ff64..d62b2d3 100644
--- a/test/rust/TARGETS
+++ b/test/rust/TARGETS
@@ -3,6 +3,7 @@
   , "tainted": ["test"]
   , "dirs":
     [ [["./", "hello", ""], "hello"]
+    , [["./", "cargo", ""], "cargo"]
     ]
   }
 }
diff --git a/test/rust/cargo/TARGETS b/test/rust/cargo/TARGETS
new file mode 100644
index 0000000..1552a32
--- /dev/null
+++ b/test/rust/cargo/TARGETS
@@ -0,0 +1,8 @@
+{ "":
+  { "type": "install"
+  , "tainted": ["test"]
+  , "dirs":
+    [ [["./", "circle", ""], "circle"]
+    ]
+  }
+}
diff --git a/test/rust/cargo/circle/TARGETS b/test/rust/cargo/circle/TARGETS
new file mode 100644
index 0000000..565bb37
--- /dev/null
+++ b/test/rust/cargo/circle/TARGETS
@@ -0,0 +1,13 @@
+{ "": {"type": "install", "tainted": ["test"], "deps": ["test-sampling"]}
+, "test-sampling":
+  { "type": ["@", "rules", "shell/test", "script"]
+  , "name": ["sampling"]
+  , "test": ["test_circle_sampling.sh"]
+  , "deps": ["sample", "verify.py"]
+  , "keep": ["sampled"]
+  }
+, "sample":
+  { "type": "install"
+  , "files": {"bin/sample": ["@", "cargo/circle", "", "circle_sampling"]}
+  }
+}
diff --git a/test/rust/cargo/circle/test_circle_sampling.sh b/test/rust/cargo/circle/test_circle_sampling.sh
new file mode 100644
index 0000000..c22109a
--- /dev/null
+++ b/test/rust/cargo/circle/test_circle_sampling.sh
@@ -0,0 +1,8 @@
+set -e
+
+for _ in `seq 1 100`
+do
+    ./bin/sample >> sampled
+done
+
+python3 verify.py sampled
diff --git a/test/rust/cargo/circle/verify.py b/test/rust/cargo/circle/verify.py
new file mode 100644
index 0000000..09dccee
--- /dev/null
+++ b/test/rust/cargo/circle/verify.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+
+import math
+import sys
+
+with open(sys.argv[1]) as f:
+    samples = f.read()
+
+for line in samples.splitlines():
+    xs, ys = line.split()
+    x = int(xs)
+    y = int(ys)
+    radius = math.sqrt(x*x + y*y)
+    print ("(%+3d,%+3d) -> %4.1f" % (x,y,radius))
+    if radius > 100.0:
+        sys.exit(1)