diff --git a/tests/suites/helpers.function b/tests/suites/helpers.function
index ecb5f15..8f681db 100644
--- a/tests/suites/helpers.function
+++ b/tests/suites/helpers.function
@@ -212,7 +212,7 @@
  * This function returns random based on a buffer it receives.
  *
  * rng_state shall be a pointer to a rnd_buf_info structure.
- * 
+ *
  * The number of bytes released from the buffer on each call to
  * the random function is specified by per_call. (Can be between
  * 1 and 4)
diff --git a/tests/suites/test_suite_mpi.function b/tests/suites/test_suite_mpi.function
index 72b4940..5dd6f0d 100644
--- a/tests/suites/test_suite_mpi.function
+++ b/tests/suites/test_suite_mpi.function
@@ -89,7 +89,7 @@
     mbedtls_mpi_init( &X );
 
     TEST_ASSERT( mbedtls_mpi_read_string( &X, radix_X, input_X ) == 0 );
-    
+
     buflen = mbedtls_mpi_size( &X );
     if( buflen > (size_t) output_size )
         buflen = (size_t) output_size;
@@ -542,7 +542,7 @@
     TEST_ASSERT( mbedtls_mpi_read_string( &X, radix_X, input_X ) == 0 );
     TEST_ASSERT( mbedtls_mpi_read_string( &Y, radix_Y, input_Y ) == 0 );
     TEST_ASSERT( mbedtls_mpi_read_string( &A, radix_A, input_A ) == 0 );
-    
+
     res = mbedtls_mpi_sub_abs( &Z, &X, &Y );
     TEST_ASSERT( res == sub_result );
     if( res == 0 )
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 795d333..092608d 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -788,7 +788,7 @@
 x509parse_crt:"30163014a012021000000000000000000000000000000000":"":MBEDTLS_ERR_X509_INVALID_VERSION + MBEDTLS_ERR_ASN1_INVALID_LENGTH
 
 X509 Certificate ASN1 (TBSCertificate, valid version tag, no serial)
-x509parse_crt:"30073005a003020104":"":MBEDTLS_ERR_X509_INVALID_SERIAL + MBEDTLS_ERR_ASN1_OUT_OF_DATA 
+x509parse_crt:"30073005a003020104":"":MBEDTLS_ERR_X509_INVALID_SERIAL + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
 X509 Certificate ASN1 (TBSCertificate, invalid length version tag)
 x509parse_crt:"30083006a00402010400":"":MBEDTLS_ERR_X509_INVALID_VERSION + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index 5be8d48..688009d 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -433,16 +433,16 @@
     char* act;
     uint32_t flags;
     int result, res;
-    mbedtls_x509_crt trusted, chain; 
+    mbedtls_x509_crt trusted, chain;
 
     result= flags_result?MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:0;
 
     mbedtls_x509_crt_init( &chain );
     mbedtls_x509_crt_init( &trusted );
 
-    while( (act = strsep( &chain_paths, " " )) ) 
-        TEST_ASSERT( mbedtls_x509_crt_parse_file( &chain, act ) == 0 ); 
-    TEST_ASSERT( mbedtls_x509_crt_parse_file( &trusted, trusted_ca ) == 0 ); 
+    while( (act = strsep( &chain_paths, " " )) )
+        TEST_ASSERT( mbedtls_x509_crt_parse_file( &chain, act ) == 0 );
+    TEST_ASSERT( mbedtls_x509_crt_parse_file( &trusted, trusted_ca ) == 0 );
 
     res = mbedtls_x509_crt_verify( &chain, &trusted, NULL, NULL, &flags, NULL, NULL );