Test: Fix new-delete mismatch

Author: caic99

source/module_base/test/math_integral_test.cpp

@@ -52,9 +52,9 @@ class SimpsonIntegralSinx : public testing::Test
 
     void TearDown()
     {
-        delete func;
-        delete rab;
-        delete asumlist;
+        delete[] func;
+        delete[] rab;
+        delete[] asumlist;
     }
 };
 
@@ -93,4 +93,4 @@ TEST_F(SimpsonIntegralSinx,SimpsonIntegralAlltoinf)
     EXPECT_NEAR(asumlist[1],1.9999999506519754444,doublethreshold);
     EXPECT_NEAR(asumlist[halfmesh],expectvalue/2.0,doublethreshold);
     EXPECT_NEAR(asumlist[halfmesh-1],1.0003141592627740053,doublethreshold);
-}
+}