Fix for persisting codecov errors

Author: bflammers

src/test-cpp-optimizers.cpp

@@ -16,16 +16,16 @@ using namespace arma;
 context("Tests for optimizers") {
 
   double abs_tol = 1e-3;
+  int n_steps = 1e5;
 
   // SGD optimizer
   test_that("the SGD optimizer works correctly") {
 
-    int n_steps = 100000;
-    
     // Construct optimizer tester
     OptimizerTester SGDTester("sgd", abs_tol);
 
-    for (int i; i < n_steps; i++) {
+    // Perform update steps
+    for (int i = 0; i < n_steps; i++) {
       SGDTester.step_W();
       SGDTester.step_b();
     }
@@ -51,12 +51,11 @@ context("Tests for optimizers") {
   // RMSprop Loss
   test_that("the RMSprop optimizer works correctly") {
 
-    int n_steps = 100000;
-    
     // Construct optimizer tester
     OptimizerTester RMSPropTester("rmsprop", abs_tol);
 
-    for (int i; i < n_steps; i++) {
+    // Perform update steps
+    for (int i = 0; i < n_steps; i++) {
       RMSPropTester.step_W();
       RMSPropTester.step_b();
     }
@@ -82,12 +81,11 @@ context("Tests for optimizers") {
   // Adam optimizer
   test_that("the ADAM optimizer works correctly") {
 
-    int n_steps = 100000;
-    
     // Construct optimizer tester
     OptimizerTester AdamTester("adam", abs_tol);
 
-    for (int i; i < n_steps; i++) {
+    // Perform update steps
+    for (int i = 0; i < n_steps; i++) {
       AdamTester.step_W();
       AdamTester.step_b();
     }