var assert = require("assert");
var prefix = require("../index.js");

describe("browser-prefix", function() {
	it("doesn't mess with things without @prefix", function(done) {
		var str = "foo: bar; prefix: none;";

		if (str !== prefix(str))
			throw "Input string doesn't match output string.";

		done();
	});

	it("manages basic prefixing", function(done) {
		assert.equal(
			prefix("@prefix foo: bar;"),

			"-moz-foo: bar; -webkit-foo: bar; -o-foo: bar; "+
				"-ms-foo: bar; foo: bar;"
		);

		done();
	});

	it("deals with multiple @prefixes on the same line", function(done) {
		assert.equal(
			prefix("@prefix foo: bar; @prefix bar: foo;"),

			"-moz-foo: bar; -webkit-foo: bar; -o-foo: bar; "+
				"-ms-foo: bar; foo: bar; "+
			"-moz-bar: foo; -webkit-bar: foo; -o-bar: foo; "+
				"-ms-bar: foo; bar: foo;"
		);

		done();
	});

	it("deals with multiple @prefixes on separate lines", function(done) {
		assert.equal(
			prefix(
				"@prefix foo: bar;\n"+
				"foo: bar;\n"+
				"@prefix bar: foo;"
			),

			"-moz-foo: bar; -webkit-foo: bar; -o-foo: bar; "+
				"-ms-foo: bar; foo: bar;\n"+
			"foo: bar;\n"+
			"-moz-bar: foo; -webkit-bar: foo; -o-bar: foo; "+
				"-ms-bar: foo; bar: foo;"
		);

		done();
	});

	it("deals with tabs for indentation", function(done) {
		assert.equal(
			prefix(
				"\t\t\t"+
					"@prefix foo: bar;"
			),

			"\t\t\t"+
				"-moz-foo: bar; -webkit-foo: bar; -o-foo: bar; "+
				"-ms-foo: bar; foo: bar;"
		);

		done();
	});

	it("deals with spaces for indentation", function(done) {
		assert.equal(
			prefix(
				"      "+
				"@prefix foo: bar;"
			),

			"      "+
				"-moz-foo: bar; -webkit-foo: bar; -o-foo: bar; "+
				"-ms-foo: bar; foo: bar;"
		);

		done();
	});
});