diff --git a/tests/unit/test-cutils.c b/tests/unit/test-cutils.c
index 0dc9429154..8ff291300f 100644
--- a/tests/unit/test-cutils.c
+++ b/tests/unit/test-cutils.c
@@ -3563,21 +3563,6 @@ static void test_qemu_strtosz_invalid(void)
     g_assert_cmphex(res, ==, 0xbaadf00d);
     g_assert_true(endptr == str);
 
-    /* No floating point exponents */
-    str = "1.5e1k";
-    endptr = NULL;
-    err = qemu_strtosz(str, &endptr, &res);
-    g_assert_cmpint(err, ==, -EINVAL);
-    g_assert_cmphex(res, ==, 0xbaadf00d);
-    g_assert_true(endptr == str);
-
-    str = "1.5E+0k";
-    endptr = NULL;
-    err = qemu_strtosz(str, &endptr, &res);
-    g_assert_cmpint(err, ==, -EINVAL);
-    g_assert_cmphex(res, ==, 0xbaadf00d);
-    g_assert_true(endptr == str);
-
     /* No hex fractions */
     str = "0x1.8k";
     endptr = NULL;
@@ -3681,6 +3666,33 @@ static void test_qemu_strtosz_trailing(void)
     err = qemu_strtosz(str, NULL, &res);
     g_assert_cmpint(err, ==, -EINVAL);
     g_assert_cmphex(res, ==, 0xbaadf00d);
+
+    /* FIXME should stop parse after 'e'. No floating point exponents */
+    str = "1.5e1k";
+    endptr = NULL;
+    res = 0xbaadf00d;
+    err = qemu_strtosz(str, &endptr, &res);
+    g_assert_cmpint(err, ==, -EINVAL /* FIXME 0 */);
+    g_assert_cmphex(res, ==, 0xbaadf00d /* FIXME EiB * 1.5 */);
+    g_assert_true(endptr == str /* FIXME + 4 */);
+
+    res = 0xbaadf00d;
+    err = qemu_strtosz(str, NULL, &res);
+    g_assert_cmpint(err, ==, -EINVAL);
+    g_assert_cmpint(res, ==, 0xbaadf00d);
+
+    str = "1.5E+0k";
+    endptr = NULL;
+    res = 0xbaadf00d;
+    err = qemu_strtosz(str, &endptr, &res);
+    g_assert_cmpint(err, ==, -EINVAL /* FIXME 0 */);
+    g_assert_cmphex(res, ==, 0xbaadf00d /* FIXME EiB * 1.5 */);
+    g_assert_true(endptr == str /* FIXME + 4 */);
+
+    res = 0xbaadf00d;
+    err = qemu_strtosz(str, NULL, &res);
+    g_assert_cmpint(err, ==, -EINVAL);
+    g_assert_cmphex(res, ==, 0xbaadf00d);
 }
 
 static void test_qemu_strtosz_erange(void)