libc seek tests

2 files changed, 21 insertions, 2 deletions

diff --git a/tests/files.cpp b/tests/files.cpp
index 39f9e61a..1167bbdf 100644
--- a/tests/files.cpp
+++ b/tests/files.cpp
@@ -51,12 +51,31 @@ int main()
   
   FILE *other = fopen("test.file", "r");
   assert(other);
+
   char otherData[1000];
   num = fread(otherData, 1, 9, other);
   otherData[num] = 0;
-  fclose(other);
   printf("other=%s.\n", otherData);
 
+  // Seeking
+
+  fseek(other, 2, SEEK_SET);
+  num = fread(otherData, 1, 5, other);
+  otherData[num] = 0;
+  printf("seeked=%s.\n", otherData);
+
+  fseek(other, -1, SEEK_CUR);
+  num = fread(otherData, 1, 3, other);
+  otherData[num] = 0;
+  printf("seeked=%s.\n", otherData);
+
+  fseek(other, -2, SEEK_END);
+  num = fread(otherData, 1, 2, other);
+  otherData[num] = 0;
+  printf("seeked=%s.\n", otherData);
+
+  fclose(other);
+
   return 0;
 }
 
diff --git a/tests/runner.py b/tests/runner.py
index 80503de6..8a1fd974 100644
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -1781,7 +1781,7 @@ if 'benchmark' not in sys.argv:
       other.close()
 
       src = open(path_from_root('tests', 'files.cpp'), 'r').read()
-      self.do_test(src, 'size: 7\ndata: 100,-56,50,25,10,77,123\ninput:hi there!\ntexto\ntexte\n5 : 10,30,20,11,88\nother=some data.\n', post_build=post)
+      self.do_test(src, 'size: 7\ndata: 100,-56,50,25,10,77,123\ninput:hi there!\ntexto\ntexte\n5 : 10,30,20,11,88\nother=some data.\nseeked=me da.\nseeked=ata.\nseeked=ta.', post_build=post)
 
     ### 'Big' tests