#399

2026-07-16 00:44:11 +09:00
@@ -0,0 +1,64 @@
+require 'rails_helper'
+
+RSpec.describe PostMetadataFetcher do
+  Response = Struct.new(:body)
+
+  def fetch_with_published_time(value, url: 'https://example.com/video')
+    html = <<~HTML
+      <html><head>
+        <meta property="article:published_time" content="#{ value }">
+      </head></html>
+    HTML
+    uri = URI.parse(url)
+    allow(Preview::UrlSafety).to receive(:validate).with(url).and_return([uri, ['8.8.8.8']])
+    allow(Preview::HttpFetcher).to receive(:fetch).and_return(Response.new(html))
+    allow(Preview::HtmlMetadataExtractor).to receive(:extract)
+        .and_return(title: 'title', image_url: nil)
+
+    described_class.fetch(url)
+  end
+
+  it 'builds ranges explicitly for year, month, and day precision' do
+    year = fetch_with_published_time('2024')
+    month = fetch_with_published_time('2024-02')
+    day = fetch_with_published_time('2024-02-03')
+
+    expect(year).to include(
+      original_created_from: Time.zone.local(2024, 1, 1).iso8601,
+      original_created_before: Time.zone.local(2025, 1, 1).iso8601
+    )
+    expect(month).to include(
+      original_created_from: Time.zone.local(2024, 2, 1).iso8601,
+      original_created_before: Time.zone.local(2024, 3, 1).iso8601
+    )
+    expect(day).to include(
+      original_created_from: Time.zone.local(2024, 2, 3).iso8601,
+      original_created_before: Time.zone.local(2024, 2, 4).iso8601
+    )
+  end
+
+  it 'preserves an input offset and fractional-second precision' do
+    result = fetch_with_published_time('2024-02-03T12:34:56.123+02:30')
+
+    expect(Time.iso8601(result.fetch(:original_created_from)))
+        .to eq(Time.iso8601('2024-02-03T12:34:56.123+02:30'))
+    expect(
+      Time.iso8601(result.fetch(:original_created_before)) -
+      Time.iso8601(result.fetch(:original_created_from))
+    ).to eq(0.001)
+    expect(result.fetch(:original_created_from)).to include('.123000000')
+  end
+
+  it 'adds platform tags for known video URLs' do
+    result = fetch_with_published_time('2024', url: 'https://youtu.be/abc123')
+
+    expect(result.fetch(:tags)).to eq('動画 YouTube')
+  end
+
+  it 'returns nil dates for an invalid timestamp' do
+    result = fetch_with_published_time('not-a-time')
+
+    expect(result.fetch(:original_created_from)).to be_nil
+    expect(result.fetch(:original_created_before)).to be_nil
+  end
+end