Michael Freno
c2e1622bd8
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212 lines
7.9 KiB
Swift
212 lines
7.9 KiB
Swift
import XCTest
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@testable import RSSuper
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final class FeedParserTests: XCTestCase {
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func testParsesRSS20Feed() throws {
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let parser = FeedParser()
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let result = try parser.parse(
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data: Data(rssSample.utf8),
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sourceURL: "https://example.com/rss.xml"
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)
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XCTAssertEqual(result.feedType, .rss)
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XCTAssertEqual(result.feed.title, "Example Podcast")
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XCTAssertEqual(result.feed.subtitle, "Weekly iOS and Swift updates")
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XCTAssertEqual(result.feed.items.count, 2)
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XCTAssertEqual(result.feed.ttl, 60)
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let firstItem = try XCTUnwrap(result.feed.items.first)
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XCTAssertEqual(firstItem.title, "Episode 1")
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XCTAssertEqual(firstItem.author, "Host Name")
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XCTAssertEqual(firstItem.guid, "episode-1")
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XCTAssertEqual(firstItem.categories, ["Swift"])
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XCTAssertEqual(firstItem.enclosure?.url, "https://example.com/audio/ep1.mp3")
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XCTAssertEqual(firstItem.enclosure?.type, "audio/mpeg")
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XCTAssertEqual(firstItem.enclosure?.length, 12345)
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XCTAssertEqual(firstItem.content, "<p>Full content for episode 1.</p>")
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}
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func testParsesAtom10Feed() throws {
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let parser = FeedParser()
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let result = try parser.parse(
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data: Data(atomSample.utf8),
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sourceURL: "https://example.com/atom.xml"
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)
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XCTAssertEqual(result.feedType, .atom)
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XCTAssertEqual(result.feed.title, "Example Atom Feed")
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XCTAssertEqual(result.feed.subtitle, "Recent engineering posts")
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XCTAssertEqual(result.feed.link, "https://example.com")
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XCTAssertEqual(result.feed.items.count, 2)
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let firstItem = try XCTUnwrap(result.feed.items.first)
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XCTAssertEqual(firstItem.guid, "urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a")
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XCTAssertEqual(firstItem.link, "https://example.com/posts/1")
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XCTAssertEqual(firstItem.author, "Jane Author")
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XCTAssertEqual(firstItem.enclosure?.url, "https://example.com/audio/post1.mp3")
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XCTAssertEqual(firstItem.enclosure?.type, "audio/mpeg")
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XCTAssertEqual(firstItem.enclosure?.length, 2048)
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}
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func testHandlesITunesNamespace() throws {
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let parser = FeedParser()
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let result = try parser.parse(
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data: Data(rssWithITunesSample.utf8),
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sourceURL: "https://example.com/itunes.xml"
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)
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XCTAssertEqual(result.feed.subtitle, "Podcast subtitle")
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XCTAssertEqual(result.feed.description, "Feed-level summary")
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let item = try XCTUnwrap(result.feed.items.first)
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XCTAssertEqual(item.author, "Podcast Author")
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XCTAssertEqual(item.description, "Item-level summary")
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}
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func testThrowsForMalformedXML() {
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let parser = FeedParser()
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XCTAssertThrowsError(
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try parser.parse(
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data: Data("<rss><channel><title>Broken".utf8),
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sourceURL: "https://example.com/broken.xml"
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)
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) { error in
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XCTAssertEqual(error as? FeedParsingError, .malformedXML)
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}
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}
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func testParsesRealWorldStyleFeeds() throws {
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let parser = FeedParser()
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let rssResult = try parser.parse(
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data: Data(realWorldRSSSample.utf8),
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sourceURL: "https://feeds.example.com/news.xml"
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)
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XCTAssertEqual(rssResult.feedType, .rss)
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XCTAssertGreaterThan(rssResult.feed.items.count, 0)
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let atomResult = try parser.parse(
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data: Data(realWorldAtomSample.utf8),
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sourceURL: "https://feeds.example.com/engineering.xml"
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)
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XCTAssertEqual(atomResult.feedType, .atom)
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XCTAssertGreaterThan(atomResult.feed.items.count, 0)
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}
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}
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private let rssSample = """
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<?xml version="1.0" encoding="UTF-8"?>
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<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd">
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<channel>
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<title>Example Podcast</title>
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<link>https://example.com</link>
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<description>A sample RSS feed</description>
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<language>en-us</language>
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<lastBuildDate>Mon, 30 Mar 2026 10:00:00 +0000</lastBuildDate>
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<generator>RSSuper Test Suite</generator>
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<ttl>60</ttl>
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<itunes:subtitle>Weekly iOS and Swift updates</itunes:subtitle>
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<item>
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<title>Episode 1</title>
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<link>https://example.com/episodes/1</link>
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<guid>episode-1</guid>
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<pubDate>Mon, 30 Mar 2026 09:00:00 +0000</pubDate>
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<category>Swift</category>
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<description>Episode 1 summary</description>
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<content:encoded><![CDATA[<p>Full content for episode 1.</p>]]></content:encoded>
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<itunes:author>Host Name</itunes:author>
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<enclosure url="https://example.com/audio/ep1.mp3" type="audio/mpeg" length="12345" />
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</item>
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<item>
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<title>Episode 2</title>
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<link>https://example.com/episodes/2</link>
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<guid>episode-2</guid>
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<pubDate>Mon, 30 Mar 2026 08:00:00 +0000</pubDate>
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<description>Episode 2 summary</description>
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</item>
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</channel>
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</rss>
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"""
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private let atomSample = """
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<?xml version="1.0" encoding="utf-8"?>
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<feed xmlns="http://www.w3.org/2005/Atom">
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<title>Example Atom Feed</title>
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<subtitle>Recent engineering posts</subtitle>
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<link href="https://example.com" rel="alternate" />
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<updated>2026-03-30T10:00:00Z</updated>
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<generator>Atom Test Generator</generator>
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<entry>
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<title>Post One</title>
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<id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
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<updated>2026-03-30T09:00:00Z</updated>
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<published>2026-03-30T08:59:00Z</published>
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<summary>First post summary</summary>
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<content type="html"><p>First post full content</p></content>
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<author><name>Jane Author</name></author>
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<link href="https://example.com/posts/1" rel="alternate" />
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<link href="https://example.com/audio/post1.mp3" rel="enclosure" type="audio/mpeg" length="2048" />
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</entry>
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<entry>
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<title>Post Two</title>
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<id>urn:uuid:7a9b2f0d-65b2-44a7-a2ad-d3c3ff7dd003</id>
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<updated>2026-03-30T08:00:00Z</updated>
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<summary>Second post summary</summary>
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<link href="https://example.com/posts/2" rel="alternate" />
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</entry>
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</feed>
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"""
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private let rssWithITunesSample = """
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<?xml version="1.0" encoding="UTF-8"?>
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<rss version="2.0" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd">
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<channel>
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<title>iTunes Feed</title>
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<itunes:subtitle>Podcast subtitle</itunes:subtitle>
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<itunes:summary>Feed-level summary</itunes:summary>
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<item>
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<title>Episode</title>
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<itunes:author>Podcast Author</itunes:author>
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<itunes:summary>Item-level summary</itunes:summary>
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</item>
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</channel>
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</rss>
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"""
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private let realWorldRSSSample = """
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<?xml version="1.0" encoding="UTF-8"?>
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<rss version="2.0">
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<channel>
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<title>Daily Tech News</title>
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<link>https://news.example.com</link>
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<description>Latest updates from the tech world</description>
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<lastBuildDate>Mon, 30 Mar 2026 12:00:00 +0000</lastBuildDate>
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<item>
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<title>Apple ships new SDK tools</title>
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<link>https://news.example.com/apple-sdk-tools</link>
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<guid>news-1</guid>
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<pubDate>Mon, 30 Mar 2026 11:00:00 +0000</pubDate>
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<description>Tooling improvements for mobile developers.</description>
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</item>
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</channel>
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</rss>
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"""
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private let realWorldAtomSample = """
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<?xml version="1.0" encoding="utf-8"?>
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<feed xmlns="http://www.w3.org/2005/Atom">
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<title>Engineering Blog</title>
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<updated>2026-03-30T12:00:00Z</updated>
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<link rel="alternate" href="https://engineering.example.com" />
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<entry>
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<title>Improving app startup performance</title>
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<id>tag:engineering.example.com,2026:post-1</id>
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<updated>2026-03-29T16:00:00Z</updated>
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<published>2026-03-29T15:00:00Z</published>
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<summary>How we reduced cold-start by 25%.</summary>
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<content>Detailed analysis of startup bottlenecks and fixes.</content>
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<author><name>Engineering Team</name></author>
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<link rel="alternate" href="https://engineering.example.com/posts/startup-performance" />
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</entry>
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</feed>
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"""
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