Graham McIntire
bbe5bde145
Phoenix 1.8 app that scrapes ammunition retailers (Lucky Gunner, SGAmmo) for price data and displays historical price trends. - Data model: retailers, calibers, products, price snapshots - Scraper infrastructure with Req, Floki, realistic browser headers - Oban-scheduled scrape jobs (every 4h with randomized delays) - LiveView pages: homepage with category cards, caliber detail with price table, Chart.js price history, and price stats banner - 18 seeded calibers across handgun/rifle/rimfire/shotgun categories - 77 tests
77 lines
2.2 KiB
Elixir
77 lines
2.2 KiB
Elixir
defmodule Ammoprices.Scraping.Retailers.SgAmmoTest do
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use ExUnit.Case, async: true
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alias Ammoprices.Scraping.Retailers.SgAmmo
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@fixture_path "test/fixtures/sg_ammo/9mm.html"
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describe "retailer_slug/0" do
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test "returns sgammo" do
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assert SgAmmo.retailer_slug() == "sgammo"
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end
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end
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describe "category_url/1" do
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test "maps 9mm-luger caliber to correct URL" do
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caliber = %{slug: "9mm-luger", category: "handgun"}
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assert SgAmmo.category_url(caliber) == "/catalog/pistol-ammo-for-sale/9mm-luger-ammo"
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end
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test "returns nil for unmapped caliber" do
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caliber = %{slug: "unknown", category: "handgun"}
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assert SgAmmo.category_url(caliber) == nil
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end
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end
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describe "parse_products/1" do
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setup do
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html = File.read!(@fixture_path)
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%{html: html}
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end
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test "extracts all products from HTML", %{html: html} do
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products = SgAmmo.parse_products(html)
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assert length(products) == 3
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end
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test "extracts product title", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.title =~ "50 Round Box - 9mm Luger 115 Grain FMJ Ammo by Magtech"
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end
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test "extracts product URL", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.url =~ "sgammo.com/product/9mm-luger-ammo/"
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end
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test "extracts price in cents", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.price_cents == 1395
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end
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test "extracts price per round in cents", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.price_per_round_cents == 28
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end
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test "extracts round count from title", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.round_count == 50
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end
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test "extracts grain weight from title", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.grain_weight == 115
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end
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test "extracts brand from title", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.brand == "Magtech"
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end
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test "marks in-stock products", %{html: html} do
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[first | _] = SgAmmo.parse_products(html)
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assert first.in_stock == true
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end
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end
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end
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