From 9e7166a52e94d8e15bf2dbfe00026f21f76630a9 Mon Sep 17 00:00:00 2001 From: Elizabeth Hunt Date: Wed, 18 Oct 2023 12:49:39 -0600 Subject: oct 16, 18 notes. add unit tests with utest, and bisection root finding methods --- test/roots.t.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 test/roots.t.c (limited to 'test/roots.t.c') diff --git a/test/roots.t.c b/test/roots.t.c new file mode 100644 index 0000000..632832a --- /dev/null +++ b/test/roots.t.c @@ -0,0 +1,17 @@ +#include "lizfcm.test.h" +#include + +double g(double x) { return x * x - 9; } + +UTEST(ivt, find_interval) { + double *range = find_ivt_range(&g, -100.0, 1.0, 200); + EXPECT_LT(g(range[0]) * g(range[1]), 0); + + free(range); +} + +UTEST(root, bisection_with_error_assumption) { + double root = bisect_find_root_with_error_assumption(&g, -5, 0, 0.01); + + EXPECT_NEAR(-3, root, 0.01); +} -- cgit v1.2.3-70-g09d2