Fix test failure due to undefined behaviour

andrjohns · andrjohns · commit 1475b9973775 · 2022-07-19T17:29:25.000+03:00
diff --git a/test/unit/math/prim/prob/wishart_cholesky_test.cpp b/test/unit/math/prim/prob/wishart_cholesky_test.cpp
@@ -81,7 +81,7 @@ TEST(ProbDistributionsWishartCholesky, dof_0) {
   MatrixXd L_Y = Y.llt().matrixL();
   MatrixXd L_S = Sigma.llt().matrixL();
 
-  unsigned int dof = std::numeric_limits<double>::quiet_NaN();
+  unsigned int dof = 0;
   EXPECT_THROW(stan::math::wishart_cholesky_lpdf(L_Y, dof, L_S),
                std::domain_error);
 }

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,7 @@ TEST(ProbDistributionsWishartCholesky, dof_0) {`
`81`	`81`	`MatrixXd L_Y = Y.llt().matrixL();`
`82`	`82`	`MatrixXd L_S = Sigma.llt().matrixL();`
`83`	`83`
`84`		`- unsigned int dof = std::numeric_limits<double>::quiet_NaN();`
	`84`	`+ unsigned int dof = 0;`
`85`	`85`	`EXPECT_THROW(stan::math::wishart_cholesky_lpdf(L_Y, dof, L_S),`
`86`	`86`	`std::domain_error);`
`87`	`87`	`}`