discourse/spec/models/theme_field_spec.rb
David Taylor 880311dd4d
FEATURE: Support for localized themes (#6848)
- Themes can supply translation files in a format like `/locales/{locale}.yml`. These files should be valid YAML, with a single top level key equal to the locale being defined. For now these can only be defined using the `discourse_theme` CLI, importing a `.tar.gz`, or from a GIT repository.

- Fallback is handled on a global level (if the locale is not defined in the theme), as well as on individual keys (if some keys are missing from the selected interface language).

- Administrators can override individual keys on a per-theme basis in the /admin/customize/themes user interface.

- Theme developers should access defined translations using the new theme prefix variables:
  JavaScript: `I18n.t(themePrefix("my_translation_key"))`
  Handlebars: `{{theme-i18n "my_translation_key"}}` or `{{i18n (theme-prefix "my_translation_key")}}`

- To design for backwards compatibility, theme developers can check for the presence of the `themePrefix` variable in JavaScript

- As part of this, the old `{{themeSetting.setting_name}}` syntax is deprecated in favour of `{{theme-setting "setting_name"}}`
2019-01-17 11:46:11 +00:00

308 lines
11 KiB
Ruby

# encoding: utf-8
require 'rails_helper'
describe ThemeField do
after(:all) do
ThemeField.destroy_all
end
describe "scope: find_by_theme_ids" do
it "returns result in the specified order" do
theme = Fabricate(:theme)
theme2 = Fabricate(:theme)
theme3 = Fabricate(:theme)
(0..1).each do |num|
ThemeField.create!(theme: theme, target_id: num, name: "header", value: "<a>html</a>")
ThemeField.create!(theme: theme2, target_id: num, name: "header", value: "<a>html</a>")
ThemeField.create!(theme: theme3, target_id: num, name: "header", value: "<a>html</a>")
end
expect(ThemeField.find_by_theme_ids(
[theme3.id, theme.id, theme2.id]
).pluck(:theme_id)).to eq(
[theme3.id, theme3.id, theme.id, theme.id, theme2.id, theme2.id]
)
end
end
it 'does not insert a script tag when there are no inline script' do
theme_field = ThemeField.create!(theme_id: 1, target_id: 0, name: "body_tag", value: '<div>new div</div>')
expect(theme_field.value_baked).to_not include('<script')
end
it 'only extracts inline javascript to an external file' do
html = <<~HTML
<script type="text/discourse-plugin" version="0.8">
var a = "inline discourse plugin";
</script>
<script type="text/template" data-template="custom-template">
<div>custom script type</div>
</script>
<script>
var b = "inline raw script";
</script>
<script type="texT/jAvasCripT">
var c = "text/javascript";
</script>
<script type="application/javascript">
var d = "application/javascript";
</script>
<script src="/external-script.js"></script>
HTML
theme_field = ThemeField.create!(theme_id: 1, target_id: 0, name: "header", value: html)
expect(theme_field.value_baked).to include("<script src=\"#{theme_field.javascript_cache.url}\"></script>")
expect(theme_field.value_baked).to include("external-script.js")
expect(theme_field.value_baked).to include('<script type="text/template"')
expect(theme_field.javascript_cache.content).to include('a = "inline discourse plugin"')
expect(theme_field.javascript_cache.content).to include('b = "inline raw script"')
expect(theme_field.javascript_cache.content).to include('c = "text/javascript"')
expect(theme_field.javascript_cache.content).to include('d = "application/javascript"')
end
it 'adds newlines between the extracted javascripts' do
html = <<~HTML
<script>var a = 10</script>
<script>var b = 10</script>
HTML
extracted = <<~JavaScript
var a = 10
var b = 10
JavaScript
theme_field = ThemeField.create!(theme_id: 1, target_id: 0, name: "header", value: html)
expect(theme_field.javascript_cache.content).to include(extracted)
end
it "correctly extracts and generates errors for transpiled js" do
html = <<HTML
<script type="text/discourse-plugin" version="0.8">
badJavaScript(;
</script>
HTML
field = ThemeField.create!(theme_id: 1, target_id: 0, name: "header", value: html)
expect(field.error).not_to eq(nil)
expect(field.value_baked).to include("<script src=\"#{field.javascript_cache.url}\"></script>")
expect(field.javascript_cache.content).to include("Theme Transpilation Error:")
field.update!(value: '')
expect(field.error).to eq(nil)
end
it "allows us to use theme settings in handlebars templates" do
html = <<HTML
<script type='text/x-handlebars' data-template-name='my-template'>
<div class="testing-div">{{themeSettings.string_setting}}</div>
</script>
HTML
ThemeField.create!(theme_id: 1, target_id: 3, name: "yaml", value: "string_setting: \"test text \\\" 123!\"")
theme_field = ThemeField.create!(theme_id: 1, target_id: 0, name: "head_tag", value: html)
javascript_cache = theme_field.javascript_cache
expect(theme_field.value_baked).to include("<script src=\"#{javascript_cache.url}\"></script>")
expect(javascript_cache.content).to include("testing-div")
expect(javascript_cache.content).to include("string_setting")
expect(javascript_cache.content).to include("test text \\\" 123!")
end
it "correctly generates errors for transpiled css" do
css = "body {"
field = ThemeField.create!(theme_id: 1, target_id: 0, name: "scss", value: css)
field.reload
expect(field.error).not_to eq(nil)
field.value = "body {color: blue};"
field.save!
field.reload
expect(field.error).to eq(nil)
end
def create_upload_theme_field!(name)
ThemeField.create!(
theme_id: 1,
target_id: 0,
value: "",
type_id: ThemeField.types[:theme_upload_var],
name: name,
)
end
it "ensures we don't use invalid SCSS variable names" do
expect { create_upload_theme_field!("42") }.to raise_error(ActiveRecord::RecordInvalid)
expect { create_upload_theme_field!("a42") }.not_to raise_error
end
def get_fixture(type)
File.read("#{Rails.root}/spec/fixtures/theme_settings/#{type}_settings.yaml")
end
def create_yaml_field(value)
field = ThemeField.create!(theme_id: 1, target_id: Theme.targets[:settings], name: "yaml", value: value)
field.reload
field
end
let(:key) { "themes.settings_errors" }
it "generates errors for bad YAML" do
yaml = "invalid_setting 5"
field = create_yaml_field(yaml)
expect(field.error).to eq(I18n.t("#{key}.invalid_yaml"))
field.value = "valid_setting: true"
field.save!
field.reload
expect(field.error).to eq(nil)
end
it "generates errors when default value's type doesn't match setting type" do
field = create_yaml_field(get_fixture("invalid"))
expect(field.error).to include(I18n.t("#{key}.default_not_match_type", name: "no_match_setting"))
end
it "generates errors when no default value is passed" do
field = create_yaml_field(get_fixture("invalid"))
expect(field.error).to include(I18n.t("#{key}.default_value_missing", name: "no_default_setting"))
end
it "generates errors when invalid type is passed" do
field = create_yaml_field(get_fixture("invalid"))
expect(field.error).to include(I18n.t("#{key}.data_type_not_a_number", name: "invalid_type_setting"))
end
it "generates errors when default value is not within allowed range" do
field = create_yaml_field(get_fixture("invalid"))
expect(field.error).to include(I18n.t("#{key}.default_out_range", name: "default_out_of_range"))
expect(field.error).to include(I18n.t("#{key}.default_out_range", name: "string_default_out_of_range"))
end
it "works correctly when valid yaml is provided" do
field = create_yaml_field(get_fixture("valid"))
expect(field.error).to be_nil
end
describe "locale fields" do
let!(:theme) { Fabricate(:theme) }
let!(:theme2) { Fabricate(:theme) }
let!(:theme3) { Fabricate(:theme) }
let!(:en1) {
ThemeField.create!(theme: theme, target_id: Theme.targets[:translations], name: "en",
value: { en: { somestring1: "helloworld", group: { key1: "enval1" } } }
.deep_stringify_keys.to_yaml
)
}
let!(:fr1) {
ThemeField.create!(theme: theme, target_id: Theme.targets[:translations], name: "fr",
value: { fr: { somestring1: "bonjourworld", group: { key2: "frval2" } } }
.deep_stringify_keys.to_yaml
)
}
let!(:fr2) { ThemeField.create!(theme: theme2, target_id: Theme.targets[:translations], name: "fr", value: "") }
let!(:en2) { ThemeField.create!(theme: theme2, target_id: Theme.targets[:translations], name: "en", value: "") }
let!(:ca3) { ThemeField.create!(theme: theme3, target_id: Theme.targets[:translations], name: "ca", value: "") }
let!(:en3) { ThemeField.create!(theme: theme3, target_id: Theme.targets[:translations], name: "en", value: "") }
describe "scopes" do
it "find_locale_fields returns results in the correct order" do
expect(ThemeField.find_locale_fields(
[theme3.id, theme.id, theme2.id], ["en", "fr"]
)).to eq([en3, en1, fr1, en2, fr2])
end
it "find_first_locale_fields returns only the first locale for each theme" do
expect(ThemeField.find_first_locale_fields(
[theme3.id, theme.id, theme2.id], ["ca", "en", "fr"]
)).to eq([ca3, en1, en2])
end
end
describe "#raw_translation_data" do
it "errors if the top level key is incorrect" do
fr1.update(value: { wrongkey: { somestring1: "bonjourworld" } }.deep_stringify_keys.to_yaml)
expect { fr1.raw_translation_data }.to raise_error(ThemeTranslationParser::InvalidYaml)
end
it "errors if there are multiple top level keys" do
fr1.update(value: { fr: { somestring1: "bonjourworld" }, otherkey: "hello" }.deep_stringify_keys.to_yaml)
expect { fr1.raw_translation_data }.to raise_error(ThemeTranslationParser::InvalidYaml)
end
it "errors if YAML includes arrays" do
fr1.update(value: { fr: ["val1", "val2"] }.deep_stringify_keys.to_yaml)
expect { fr1.raw_translation_data }.to raise_error(ThemeTranslationParser::InvalidYaml)
end
it "errors if YAML has invalid syntax" do
fr1.update(value: "fr: 'valuewithoutclosequote")
expect { fr1.raw_translation_data }.to raise_error(ThemeTranslationParser::InvalidYaml)
end
end
describe "#translation_data" do
it "loads correctly" do
expect(fr1.translation_data).to eq(
fr: { somestring1: "bonjourworld", group: { key2: "frval2" } },
en: { somestring1: "helloworld", group: { key1: "enval1" } }
)
end
it "raises errors for the current locale" do
fr1.update(value: { wrongkey: "hello" }.deep_stringify_keys.to_yaml)
expect { fr1.translation_data }.to raise_error(ThemeTranslationParser::InvalidYaml)
end
it "doesn't raise errors for the fallback locale" do
en1.update(value: { wrongkey: "hello" }.deep_stringify_keys.to_yaml)
expect(fr1.translation_data).to eq(
fr: { somestring1: "bonjourworld", group: { key2: "frval2" } }
)
end
it "merges any overrides" do
# Overrides in the current locale (so in tests that will be english)
theme.update_translation("group.key1", "overriddentest1")
theme.reload
expect(fr1.translation_data).to eq(
fr: { somestring1: "bonjourworld", group: { key2: "frval2" } },
en: { somestring1: "helloworld", group: { key1: "overriddentest1" } }
)
end
end
describe "javascript cache" do
it "is generated correctly" do
fr1.ensure_baked!
expect(fr1.value_baked).to include("<script src='#{fr1.javascript_cache.url}'></script>")
expect(fr1.javascript_cache.content).to include("bonjourworld")
expect(fr1.javascript_cache.content).to include("helloworld")
expect(fr1.javascript_cache.content).to include("enval1")
end
end
describe "prefix injection" do
it "injects into JS" do
html = <<~HTML
<script type="text/discourse-plugin" version="0.8">
var a = "inline discourse plugin";
</script>
HTML
theme_field = ThemeField.create!(theme_id: theme.id, target_id: 0, name: "head_tag", value: html)
javascript_cache = theme_field.javascript_cache
expect(javascript_cache.content).to include("inline discourse plugin")
expect(javascript_cache.content).to include("theme_translations.#{theme.id}.")
end
end
end
end