--- /dev/null
+var tape = require("tape");\r
+\r
+var float = require("..");\r
+\r
+tape.test("float", function(test) {\r
+\r
+ // default\r
+ test.test(test.name + " - typed array", function(test) {\r
+ runTest(float, test);\r
+ });\r
+\r
+ // ieee754\r
+ test.test(test.name + " - fallback", function(test) {\r
+ var F32 = global.Float32Array,\r
+ F64 = global.Float64Array;\r
+ delete global.Float32Array;\r
+ delete global.Float64Array;\r
+ runTest(float({}), test);\r
+ global.Float32Array = F32;\r
+ global.Float64Array = F64;\r
+ });\r
+});\r
+\r
+function runTest(float, test) {\r
+\r
+ var common = [\r
+ 0,\r
+ -0,\r
+ Infinity,\r
+ -Infinity,\r
+ 0.125,\r
+ 1024.5,\r
+ -4096.5,\r
+ NaN\r
+ ];\r
+\r
+ test.test(test.name + " - using 32 bits", function(test) {\r
+ common.concat([\r
+ 3.4028234663852886e+38,\r
+ 1.1754943508222875e-38,\r
+ 1.1754946310819804e-39\r
+ ])\r
+ .forEach(function(value) {\r
+ var strval = value === 0 && 1 / value < 0 ? "-0" : value.toString();\r
+ test.ok(\r
+ checkValue(value, 4, float.readFloatLE, float.writeFloatLE, Buffer.prototype.writeFloatLE),\r
+ "should write and read back " + strval + " (32 bit LE)"\r
+ );\r
+ test.ok(\r
+ checkValue(value, 4, float.readFloatBE, float.writeFloatBE, Buffer.prototype.writeFloatBE),\r
+ "should write and read back " + strval + " (32 bit BE)"\r
+ );\r
+ });\r
+ test.end();\r
+ });\r
+\r
+ test.test(test.name + " - using 64 bits", function(test) {\r
+ common.concat([\r
+ 1.7976931348623157e+308,\r
+ 2.2250738585072014e-308,\r
+ 2.2250738585072014e-309\r
+ ])\r
+ .forEach(function(value) {\r
+ var strval = value === 0 && 1 / value < 0 ? "-0" : value.toString();\r
+ test.ok(\r
+ checkValue(value, 8, float.readDoubleLE, float.writeDoubleLE, Buffer.prototype.writeDoubleLE),\r
+ "should write and read back " + strval + " (64 bit LE)"\r
+ );\r
+ test.ok(\r
+ checkValue(value, 8, float.readDoubleBE, float.writeDoubleBE, Buffer.prototype.writeDoubleBE),\r
+ "should write and read back " + strval + " (64 bit BE)"\r
+ );\r
+ });\r
+ test.end();\r
+ });\r
+\r
+ test.end();\r
+}\r
+\r
+function checkValue(value, size, read, write, write_comp) {\r
+ var buffer = new Buffer(size);\r
+ write(value, buffer, 0);\r
+ var value_comp = read(buffer, 0);\r
+ var strval = value === 0 && 1 / value < 0 ? "-0" : value.toString();\r
+ if (value !== value) {\r
+ if (value_comp === value_comp)\r
+ return false;\r
+ } else if (value_comp !== value)\r
+ return false;\r
+\r
+ var buffer_comp = new Buffer(size);\r
+ write_comp.call(buffer_comp, value, 0);\r
+ for (var i = 0; i < size; ++i)\r
+ if (buffer[i] !== buffer_comp[i]) {\r
+ console.error(">", buffer, buffer_comp);\r
+ return false;\r
+ }\r
+\r
+ return true;\r
+}
\ No newline at end of file