1 files changed, 58 insertions, 0 deletions
diff --git a/tests/libntp/g_hextolfp.cpp b/tests/libntp/g_hextolfp.cpp
new file mode 100644
index 000000000000..bcfb094f902b
--- /dev/null
+++ b/tests/libntp/g_hextolfp.cpp
@@ -0,0 +1,58 @@
+#include "g_lfptest.h"
+
+class hextolfpTest : public lfptest {
+};
+
+TEST_F(hextolfpTest, PositiveInteger) {
+	const char *str = "00001000.00000000";
+	l_fp actual;
+
+	l_fp expected = {4096, 0}; // 16^3, no fraction part.
+
+	ASSERT_TRUE(hextolfp(str, &actual));
+	EXPECT_TRUE(IsEqual(expected, actual));
+}
+
+TEST_F(hextolfpTest, NegativeInteger) {
+	const char *str = "ffffffff.00000000"; // -1 decimal
+	l_fp actual;
+
+	l_fp expected = {-1, 0};
+
+	ASSERT_TRUE(hextolfp(str, &actual));
+	EXPECT_TRUE(IsEqual(expected, actual));
+}
+
+TEST_F(hextolfpTest, PositiveFraction) {
+	const char *str = "00002000.80000000"; // 8196.5 decimal
+	l_fp actual;
+
+	l_fp expected = {8192, HALF};
+
+	ASSERT_TRUE(hextolfp(str, &actual));
+	EXPECT_TRUE(IsEqual(expected, actual));
+}
+
+TEST_F(hextolfpTest, NegativeFraction) {
+	const char *str = "ffffffff.40000000"; // -1 + 0.25 decimal
+	l_fp actual;
+
+	l_fp expected = {-1, QUARTER}; //-1 + 0.25
+
+	ASSERT_TRUE(hextolfp(str, &actual));
+	EXPECT_TRUE(IsEqual(expected, actual));
+}
+
+TEST_F(hextolfpTest, IllegalNumberOfInteger) {
+	const char *str = "1000000.00000000"; // Missing one digit in integral part.
+	l_fp actual;
+
+	ASSERT_FALSE(hextolfp(str, &actual));
+}
+
+TEST_F(hextolfpTest, IllegalChar) {
+	const char *str = "10000000.0000h000"; // Illegal character h.
+	l_fp actual;
+
+	ASSERT_FALSE(hextolfp(str, &actual));
+}