diff --git a/tests/api.c b/tests/api.c
index 774a33296..f93076364 100644
--- a/tests/api.c
+++ b/tests/api.c
@@ -20766,7 +20766,76 @@ static int test_wc_ecc_is_valid_idx (void)
 
 
 } /* END test_wc_ecc_is_valid_idx */
+/*
+ * Testing wc_ecc_get_curve_id_from_oid()
+ */
+static int test_wc_ecc_get_curve_id_from_oid (void)
+{
+    int ret = 0;
+#if defined(HAVE_ECC) && !defined(NO_ECC256)  && !defined(HAVE_SELFTEST) && \
+    !defined(HAVE_FIPS)
+    const byte oid[] = {0x2A,0x86,0x48,0xCE,0x3D,0x03,0x01,0x07};
+    word32 len = sizeof(oid);
 
+    printf(testingFmt, "wc_ecc_get_curve_id_from_oid()");
+
+    /* Bad Cases */
+    ret = wc_ecc_get_curve_id_from_oid(NULL, len);
+    if (ret == BAD_FUNC_ARG) {
+        ret = 0;
+    }
+    if (ret == 0) {
+        ret = wc_ecc_get_curve_id_from_oid(oid, 0);
+        if (ret == ECC_CURVE_INVALID) {
+            ret = 0;
+        }
+    }
+    /* Good Case */
+    if (ret == 0) {
+        ret = wc_ecc_get_curve_id_from_oid(oid, len);
+        if (ret == 7) {
+            ret = 0;
+        }
+    }
+
+    printf(resultFmt, ret == 0 ? passed : failed);
+
+#endif
+    return ret;
+}/* END test_wc_ecc_get_curve_id_from_oid */
+/*
+ * Testing wc_ecc_sig_size_calc()
+ */
+static int test_wc_ecc_sig_size_calc (void)
+{
+    int ret = 0;
+#if defined(HAVE_ECC) && !defined(WC_NO_RNG) && !defined(HAVE_SELFTEST)
+    ecc_key     key;
+    WC_RNG      rng;
+    int         sz;
+
+    printf(testingFmt, "wc_ecc_sig_size_calc()");
+
+    ret = wc_InitRng(&rng);
+    if (ret == 0) {
+        ret = wc_ecc_init(&key);
+        if (ret == 0) {
+            ret = wc_ecc_make_key(&rng, 16, &key);
+        }
+        sz = key.dp->size;
+    }
+    if (ret == 0) {
+        ret = wc_ecc_sig_size_calc(sz);
+        if (ret > 0) {
+            ret = 0;
+        }
+    }
+     printf(resultFmt, ret == 0 ? passed : failed);
+    wc_ecc_free(&key);
+    wc_FreeRng(&rng);
+#endif
+    return ret;
+} /* END test_wc_ecc_sig_size_calc */
 /*
  * Testing ToTraditional
  */
@@ -36898,6 +36967,8 @@ void ApiTest(void)
     AssertIntEQ(test_wc_ecc_verify_hash_ex(), 0);
     AssertIntEQ(test_wc_ecc_mulmod(), 0);
     AssertIntEQ(test_wc_ecc_is_valid_idx(), 0);
+    AssertIntEQ(test_wc_ecc_get_curve_id_from_oid(), 0);
+    AssertIntEQ(test_wc_ecc_sig_size_calc(), 0);
 
 
     AssertIntEQ(test_ToTraditional(), 0);