Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/js/src/tests/non262/Math/tanh-exact.js b/js/src/tests/non262/Math/tanh-exact.js
new file mode 100644
index 0000000000..bfd9ac4def
--- /dev/null
+++ b/js/src/tests/non262/Math/tanh-exact.js
@@ -0,0 +1,19 @@
+// Properties of Math.tanh that are guaranteed by the spec.
+
+// If x is NaN, the result is NaN.
+assertEq(Math.tanh(NaN), NaN);
+
+// If x is +0, the result is +0.
+assertEq(Math.tanh(+0), +0);
+
+// If x is −0, the result is −0.
+assertEq(Math.tanh(-0), -0);
+
+// If x is +∞, the result is +1.
+assertEq(Math.tanh(Number.POSITIVE_INFINITY), +1);
+
+// If x is −∞, the result is -1.
+assertEq(Math.tanh(Number.NEGATIVE_INFINITY), -1);
+
+
+reportCompare(0, 0, "ok");