tests/libfixmath: migrate to testrunner

tests/libfixmath/Makefile

@@ -5,3 +5,6 @@ USEPKG += libfixmath
 USEMODULE += libfixmath
 
 include $(RIOTBASE)/Makefile.include
+
+test:
+	tests/01-run.py

tests/libfixmath/main.c

@@ -190,6 +190,6 @@ int main(void)
     puts("Binary.");
     binary_ops();
 
-    puts("Done.");
+    puts("SUCCESS");
     return 0;
 }

tests/libfixmath/tests/01-run.py

+#!/usr/bin/env python3
+
+import os
+import sys
+
+sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
+import testrunner
+
+
+def expect_unary(child):
+    for _ in range(20):
+        for op_name in ('abs', 'sq', 'atan', 'exp'):
+            child.expect('{}\(-?\d+\.\d+\) = -?\d+\.\d+'.format(op_name))
+
+    for _ in range(20):
+        for op_name in ('sin', 'cos', 'tan'):
+            child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
+
+    for _ in range(20):
+        for op_name in ('asin', 'acos'):
+            child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
+
+    for _ in range(20):
+        for op_name in ('sqrt', 'log', 'log2', 'slog2'):
+            child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
+
+
+def expect_binary(child):
+    for _ in range(20):
+        for op_name in ('add', 'sub', 'mul', 'div', 'mod', 'sadd', 'ssub',
+                        'smul', 'sdiv', 'min', 'max'):
+            child.expect('{}\(-?\d+.\d+\, -?\d+.\d+\) = -?\d+.\d+'
+                         .format(op_name))
+
+
+def testfunc(child):
+    child.expect_exact('Unary.')
+    expect_unary(child)
+    child.expect_exact('Binary.')
+    expect_binary(child)
+    child.expect_exact('SUCCESS')
+
+if __name__ == "__main__":
+    sys.exit(testrunner.run(testfunc))