Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
328 | the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
329 | Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
330 | and JavaScript.
Massive UK study of
706 | COVID-19 cases shows that people who are jabbed have good immunity at
707 | first, but quickly become more vulnerable to the fast-spreading Delta
708 | variant.
709 |
Modelling suggests that the Montreal
881 | Protocol may be mitigating climate change by protecting the land carbon
882 | sink, as well as by protecting the ozone layer and reducing greenhouse
883 | gas emissions.
Survey finds that government-funded
947 | trials sometimes face efforts to suppress results. Plus, hopeful signs
948 | for a ‘pan-coronavirus’ vaccine and a rare pair of all-white orca
949 | whales.
Feeding mice high-fructose corn syrup, a
1543 | widely used sweetener in human diets, has been found to drive an
1544 | increase in the surface area of the gut that is associated with enhanced
1545 | absorption of dietary nutrients and weight gain.
Supersolids are exotic materials whose
1611 | constituent particles can simultaneously form a crystal and flow without
1612 | friction. The first 2D supersolid has been produced using ultracold
1613 | gases of highly magnetic atoms.
The fruit fly Drosophila melanogaster
1679 | is a social animal. Flies kept in chronic social isolation have now
1680 | been found to show dysregulated sleep and feeding patterns, casting
1681 | light on how prolonged absence of social contact affects health.
To meet climate targets, technologies
1808 | that remove atmospheric carbon dioxide will probably be needed. An
1809 | analysis shows how their development and use could be accelerated if
1810 | carbon emitters are obliged to remove their own CO2.
Surface enhancements in
2098 | glass mobility are complicated in polymers by the
2099 | interplay of the surface mobile layer thickness with a second
2100 | length scale (the size of the polymer chains), giving rise to a
2101 | transient rubbery surface even in polymers with short chains.
Signals from the sympathetic nervous
2165 | system act via mesenchymal stromal cells to regulate the function of
2166 | group 2 innate lymphoid cells and control adipocyte metabolism.
Modelling suggests that the Montreal
2230 | Protocol may be mitigating climate change by protecting the land carbon
2231 | sink, as well as by protecting the ozone layer and reducing greenhouse
2232 | gas emissions.
A protein chaperone system is identified
2296 | that consists of proteins with poly-Asp/Glu sequence, and may have an
2297 | important role in diseases characterized by protein aggregation.
2432 | Researchers are rethinking
2433 | the nature and potential of matter. From new metal mixes that form more
2434 | efficient catalysts to bio-inspired super-black products, their work is
2435 | driving advances in manufacturing, drug discovery and product design.
2436 |
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2782 | 
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/test/open_graph_test.exs:
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1 | defmodule OpenGraphTest do
2 | use ExUnit.Case
3 |
4 | setup do
5 | github = File.read!("#{File.cwd!()}/test/fixtures/github.html")
6 | nature = File.read!("#{File.cwd!()}/test/fixtures/nature.html")
7 | {:ok, github: github, nature: nature}
8 | end
9 |
10 | test "parses with valid OpenGraph metatags in the given HTML", %{github: html} do
11 | og = OpenGraph.parse(html)
12 |
13 | assert og.title == "Build software better, together"
14 | assert og.url == "https://github.com"
15 | assert og.site_name == "GitHub"
16 |
17 | assert og.description ==
18 | "GitHub is where people build software. More than 15 million people use GitHub to discover, fork, and contribute to over 38 million projects."
19 |
20 | assert og.image ==
21 | "https://assets-cdn.github.com/images/modules/open_graph/github-octocat.png"
22 | end
23 |
24 | test "parses with empty given HTML" do
25 | og = OpenGraph.parse("")
26 |
27 | assert og.title == nil
28 | assert og.url == nil
29 | assert og.site_name == nil
30 | assert og.description == nil
31 | assert og.image == nil
32 | end
33 |
34 | test "fetch despite 303 redirections", %{nature: html} do
35 | og = OpenGraph.parse(html)
36 |
37 | assert og.description ==
38 | "Nature is the foremost international weekly scientific journal in the world and is the flagship journal for Nature Portfolio. It publishes the finest ..."
39 |
40 | assert og.image ==
41 | "http://media.springernature.com/lw630/nature-cms/uploads/cms/pages/2913/top_item_image/d41586-021-02261-8_19578828-705d6691a7215ead2ffecb4e0cfae7bc.jpg"
42 |
43 | assert og.site_name == "Nature"
44 | assert og.title == "Nature"
45 | assert og.type == "website"
46 | assert og.url == "https://www.nature.com/nature"
47 | end
48 | end
49 |
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/test/test_helper.exs:
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1 | ExUnit.start()
2 |
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