validStringLiteral utility

medikoo · Aug 13, 2014 · 5196ef0 · 5196ef0
1 parent 0b2a15a
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diff --git a/test/valid-string-literal.js b/test/valid-string-literal.js
@@ -0,0 +1,22 @@
+'use strict';
+
+module.exports = function (t, a) {
+	var str;
+	a.throws(function () { t(); }, TypeError, "Undefined");
+	a.throws(function () { t(null); }, TypeError, "Null");
+	a.throws(function () { t({}); }, TypeError, "Object");
+	a.throws(function () { t(''); }, TypeError, "Empty code");
+	a(t('""'), '""', "Empty \" string");
+	a(t('\'\''), '\'\'', "Empty ' string");
+	a.throws(function () { t('"sdfsdf'); }, TypeError, "Not finished \" string");
+	a.throws(function () { t('\'sdfsdf'); }, TypeError, "Not finished ' string");
+	str = '\'sdf\\\'fefeefe\\\\efefe\\n\\\\\\\'\\\'efef"" "sdfdfsdf\'';
+	a(t(str), str, "' string");
+	str = '"sdf\\"fefeefe\\\\efefe\\n\\\\\\"\\"efef\'\' \'sdfdfsdf"';
+	a(t(str), str, "Messy \" string");
+	a.throws(function () { t('  "sdf\\"fefeefe\\\\efefe\\n\\\\\\"\\"efef\'\' \'sdfdfsdf"'); },
+		TypeError, "Starts with ws");
+	a.throws(function () { t('"sdf\\"fefeefe\\\\efefe\\n\\\\\\"\\"efef\'\' \'sdfdfsdf"  '); },
+		TypeError, "Ends with ws");
+	a.throws(function () { t('34'); }, TypeError, "Number");
+};
diff --git a/valid-string-literal.js b/valid-string-literal.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var isStringLiteral = require('./is-string-literal');
+
+module.exports = function (arg) {
+	if (isStringLiteral(arg)) return arg;
+	throw new TypeError(arg + " does not represent string literal");
+};