403 lines
9 KiB
JavaScript
403 lines
9 KiB
JavaScript
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// Copyright 2014 Simon Lydell
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// X11 (“MIT”) Licensed. (See LICENSE.)
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var expect = require("expect.js")
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var sourceMappingURL = require("../")
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var comments = {
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universal: [
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"/*# sourceMappingURL=foo.js.map */"
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],
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js: [
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"//# sourceMappingURL=foo.js.map"
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],
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block: [
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"/*",
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"# sourceMappingURL=foo.js.map",
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"*/"
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],
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mix: [
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"/*",
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"//# sourceMappingURL=foo.js.map",
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"*/"
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]
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}
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var nonTrailingComments = {
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jsLeading: {
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contents: [
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"//# sourceMappingURL=foo.js.map",
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"(function(){})"
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],
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solution: [
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"(function(){})"
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]
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},
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mixEmbedded: {
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contents: [
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"/*! Library Name v1.0.0",
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"//# sourceMappingURL=foo.js.map",
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"*/",
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"(function(){})"
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],
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solution: [
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"/*! Library Name v1.0.0",
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"*/",
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"(function(){})"
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]
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}
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}
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function forEachComment(fn) {
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forOf(comments, function(name, comment) {
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var description = "the '" + name + "' syntax with "
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fn(comment.join("\n"), description + "regular newlines")
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fn(comment.join("\r\n"), description + "Windows newlines")
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})
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}
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function forEachNonTrailingComment(fn) {
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forOf(nonTrailingComments, function(name, comment) {
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var description = "the '" + name + "' syntax with "
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fn({
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contents: comment.contents.join("\n"),
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solution: comment.solution.join("\n")
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}, description + "regular newlines")
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fn({
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contents: comment.contents.join("\r\n"),
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solution: comment.solution.join("\r\n")
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}, description + "Windows newlines")
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})
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}
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function forOf(obj, fn) {
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for (var key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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fn(key, obj[key])
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}
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}
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}
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describe("sourceMappingURL", function() {
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describe(".getFrom", function() {
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forEachComment(function(comment, description) {
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it("gets the url from " + description, function() {
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expect(sourceMappingURL.getFrom("code\n" + comment))
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.to.equal("foo.js.map")
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expect(sourceMappingURL.getFrom("code" + comment))
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.to.equal("foo.js.map")
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expect(sourceMappingURL.getFrom(comment))
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.to.equal("foo.js.map")
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})
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})
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forEachNonTrailingComment(function(comment, description) {
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it("gets the url from " + description, function() {
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expect(sourceMappingURL.getFrom("code\n" + comment.contents))
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.to.equal("foo.js.map")
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expect(sourceMappingURL.getFrom("code" + comment.contents))
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.to.equal("foo.js.map")
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expect(sourceMappingURL.getFrom(comment.contents))
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.to.equal("foo.js.map")
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})
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})
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it("returns null if no comment", function() {
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expect(sourceMappingURL.getFrom("code"))
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.to.equal(null)
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})
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it("can return an empty string as url", function() {
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expect(sourceMappingURL.getFrom("/*# sourceMappingURL= */"))
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.to.equal("")
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})
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it("is detachable", function() {
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var get = sourceMappingURL.getFrom
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expect(get("/*# sourceMappingURL=foo */"))
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.to.equal("foo")
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})
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})
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describe(".existsIn", function() {
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forEachComment(function(comment, description) {
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it("returns true for " + description, function() {
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expect(sourceMappingURL.existsIn("code\n" + comment))
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.to.equal(true)
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expect(sourceMappingURL.existsIn("code" + comment))
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.to.equal(true)
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expect(sourceMappingURL.existsIn(comment))
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.to.equal(true)
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})
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})
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forEachNonTrailingComment(function(comment, description) {
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it("returns true for " + description, function() {
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expect(sourceMappingURL.existsIn("code\n" + comment.contents))
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.to.equal(true)
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expect(sourceMappingURL.existsIn("code" + comment.contents))
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.to.equal(true)
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expect(sourceMappingURL.existsIn(comment.contents))
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.to.equal(true)
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})
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})
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it("returns false if no comment", function() {
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expect(sourceMappingURL.existsIn("code"))
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.to.equal(false)
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})
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it("is detachable", function() {
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var has = sourceMappingURL.existsIn
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expect(has("/*# sourceMappingURL=foo */"))
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.to.equal(true)
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})
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})
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describe(".removeFrom", function() {
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forEachComment(function(comment, description) {
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it("removes the comment for " + description, function() {
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expect(sourceMappingURL.removeFrom("code\n" + comment))
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.to.equal("code\n")
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expect(sourceMappingURL.removeFrom("code" + comment))
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.to.equal("code")
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expect(sourceMappingURL.removeFrom(comment))
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.to.equal("")
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})
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})
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forEachNonTrailingComment(function(comment, description) {
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it("removes the comment for " + description, function() {
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expect(sourceMappingURL.removeFrom("code\n" + comment.contents))
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.to.equal("code\n" + comment.solution)
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expect(sourceMappingURL.removeFrom("code" + comment.contents))
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.to.equal("code" + comment.solution)
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expect(sourceMappingURL.removeFrom(comment.contents))
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.to.equal(comment.solution)
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})
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})
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it("does nothing if no comment", function() {
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expect(sourceMappingURL.removeFrom("code\n"))
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.to.equal("code\n")
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})
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it("is detachable", function() {
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var remove = sourceMappingURL.removeFrom
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expect(remove("/*# sourceMappingURL=foo */"))
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.to.equal("")
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})
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})
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describe(".insertBefore", function() {
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forEachComment(function(comment, description) {
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it("inserts a string before the comment for " + description, function() {
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expect(sourceMappingURL.insertBefore("code\n" + comment, "more code\n"))
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.to.equal("code\nmore code\n" + comment)
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expect(sourceMappingURL.insertBefore("code" + comment, "\nmore code"))
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.to.equal("code\nmore code" + comment)
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expect(sourceMappingURL.insertBefore(comment, "some code"))
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.to.equal("some code" + comment)
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})
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})
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it("inserts a string before an embedded comment", function() {
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expect(sourceMappingURL.insertBefore("/*! Library Name v1.0.0\n" +
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"//# sourceMappingURL=foo.js.map\n*/\n(function(){})", "code\n"))
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.to.equal("/*! Library Name v1.0.0\ncode\n" +
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"//# sourceMappingURL=foo.js.map\n*/\n(function(){})")
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})
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it("inserts a string before a leading comment", function() {
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expect(sourceMappingURL.insertBefore("//# sourceMappingURL=foo.js.map\n" +
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"(function(){})", "code\n"))
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.to.equal("code\n//# sourceMappingURL=foo.js.map\n" +
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"(function(){})")
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})
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it("appends if no comment", function() {
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expect(sourceMappingURL.insertBefore("code", "\nmore code"))
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.to.equal("code\nmore code")
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})
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it("is detachable", function() {
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var insertBefore = sourceMappingURL.insertBefore
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expect(insertBefore("/*# sourceMappingURL=foo */", "bar"))
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.to.equal("bar/*# sourceMappingURL=foo */")
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})
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})
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describe(".regex", function() {
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it("includes ._innerRegex", function() {
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expect(sourceMappingURL.regex.source)
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.to.contain(sourceMappingURL._innerRegex.source)
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})
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var match = function(code) {
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expect(code)
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.to.match(sourceMappingURL.regex)
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}
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var noMatch = function(code) {
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expect(code)
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.not.to.match(sourceMappingURL.regex)
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}
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forEachComment(function(comment, description) {
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it("matches " + description, function() {
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match("code\n" + comment)
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match("code" + comment)
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match(comment)
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})
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it("matches " + description + ", with trailing whitespace", function() {
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match(comment + " ")
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match(comment + "\n")
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match(comment + "\n\n\t\n \t ")
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})
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})
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it("does not match some cases that are easy to mess up", function() {
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noMatch(
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"/* # sourceMappingURL=foo */"
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)
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noMatch(
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"// # sourceMappingURL=foo"
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)
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})
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it("is liberal regarding inner whitespace", function() {
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match(
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"/*# sourceMappingURL=foo*/"
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)
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match(
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"/*# sourceMappingURL=foo */"
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)
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match(
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"/*# sourceMappingURL=foo \t\n" +
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"*/"
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)
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match(
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"/* \n" +
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"# sourceMappingURL=foo\n" +
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"*/"
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)
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match(
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"/*\n" +
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"# sourceMappingURL=foo\n" +
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" */"
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)
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match(
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"/*\n" +
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"# sourceMappingURL=foo\n" +
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"\n" +
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"\t\n" +
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"*/"
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)
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})
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})
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describe("._innerRegex", function() {
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it("matches the contents of sourceMappingURL comments", function() {
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expect("# sourceMappingURL=http://www.example.com/foo/bar.js.map")
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.to.match(sourceMappingURL._innerRegex)
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})
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it("captures the url in the first capture group", function() {
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expect(sourceMappingURL._innerRegex.exec("# sourceMappingURL=foo")[1])
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.to.equal("foo")
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})
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it("supports the legacy syntax", function() {
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expect("@ sourceMappingURL=http://www.example.com/foo/bar.js.map")
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.to.match(sourceMappingURL._innerRegex)
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})
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})
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})
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