1 files changed, 122 insertions, 0 deletions
diff --git a/js/src/tests/ecma/Math/15.8.2.2.js b/js/src/tests/ecma/Math/15.8.2.2.js
new file mode 100644
index 000000000..0f72734d2
--- /dev/null
+++ b/js/src/tests/ecma/Math/15.8.2.2.js
@@ -0,0 +1,122 @@
+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/**
+   File Name:          15.8.2.2.js
+   ECMA Section:       15.8.2.2 acos( x )
+   Description:        return an approximation to the arc cosine of the
+   argument.  the result is expressed in radians and
+   range is from +0 to +PI.  special cases:
+   - if x is NaN, return NaN
+   - if x > 1, the result is NaN
+   - if x < -1, the result is NaN
+   - if x == 1, the result is +0
+   Author:             christine@netscape.com
+   Date:               7 july 1997
+*/
+var SECTION = "15.8.2.2";
+var VERSION = "ECMA_1";
+startTest();
+var TITLE   = "Math.acos()";
+
+writeHeaderToLog( SECTION + " "+ TITLE);
+
+new TestCase( SECTION,
+	      "Math.acos.length",
+	      1,
+	      Math.acos.length );
+
+new TestCase( SECTION,
+	      "Math.acos(void 0)",
+	      Number.NaN,
+	      Math.acos(void 0) );
+
+new TestCase( SECTION,
+	      "Math.acos()",
+	      Number.NaN,
+	      Math.acos() );
+
+new TestCase( SECTION,
+	      "Math.acos(null)",
+	      Math.PI/2,
+	      Math.acos(null) );
+
+new TestCase( SECTION,
+	      "Math.acos(NaN)",
+	      Number.NaN,
+	      Math.acos(Number.NaN) );
+
+new TestCase( SECTION,
+	      "Math.acos(a string)",
+	      Number.NaN,
+	      Math.acos("a string") );
+
+new TestCase( SECTION,
+	      "Math.acos('0')",
+	      Math.PI/2,
+	      Math.acos('0') );
+
+new TestCase( SECTION,
+	      "Math.acos('1')",
+	      0,
+	      Math.acos('1') );
+
+new TestCase( SECTION,
+	      "Math.acos('-1')",
+	      Math.PI,
+	      Math.acos('-1') );
+
+new TestCase( SECTION,
+	      "Math.acos(1.00000001)",
+	      Number.NaN,
+	      Math.acos(1.00000001) );
+
+new TestCase( SECTION,
+	      "Math.acos(11.00000001)",
+	      Number.NaN,
+	      Math.acos(-1.00000001) );
+
+new TestCase( SECTION,
+	      "Math.acos(1)",
+	      0,
+	      Math.acos(1)          );
+
+new TestCase( SECTION,
+	      "Math.acos(-1)",
+	      Math.PI,
+	      Math.acos(-1)         );
+
+new TestCase( SECTION,
+	      "Math.acos(0)",
+	      Math.PI/2,
+	      Math.acos(0)          );
+
+new TestCase( SECTION,
+	      "Math.acos(-0)",
+	      Math.PI/2,
+	      Math.acos(-0)         );
+
+new TestCase( SECTION,
+	      "Math.acos(Math.SQRT1_2)",
+	      Math.PI/4,
+	      Math.acos(Math.SQRT1_2));
+
+new TestCase( SECTION,
+	      "Math.acos(-Math.SQRT1_2)",
+	      Math.PI/4*3,
+	      Math.acos(-Math.SQRT1_2));
+
+new TestCase( SECTION,
+	      "Math.acos(0.9999619230642)",
+	      Math.PI/360,
+	      Math.acos(0.9999619230642));
+
+new TestCase( SECTION,
+	      "Math.acos(-3.0)",
+	      Number.NaN,
+	      Math.acos(-3.0));
+
+test();