experiment: remove minitest dsl

This is to test whether parallelisation works when NOT using
`Minitest::Spec::DSL`.

Author: edavey

test/support/govspeak_preview_helper_test.rb

@@ -1,55 +1,53 @@
 require "test_helper"
 
 class GovspeakPreviewHelperTest < ActionView::TestCase
-  extend Minitest::Spec::DSL
-
-  it "should not alter urls to other sites" do
+  test "should not alter urls to other sites" do
     html = govspeak_to_html("no [change](http://external.example.com/page.html)")
     assert_select_within_html html, "a[href=?]", "http://external.example.com/page.html", text: "change"
   end
 
-  it "should not alter mailto urls" do
+  test "should not alter mailto urls" do
     html = govspeak_to_html("no [change](mailto:dave@example.com)")
     assert_select_within_html html, "a[href=?]", "mailto:dave@example.com", text: "change"
   end
 
-  it "should not alter invalid urls" do
+  test "should not alter invalid urls" do
     html = govspeak_to_html("no [change](not a valid url)")
     assert_select_within_html html, "a[href=?]", "not%20a%20valid%20url", text: "change"
   end
 
-  it "should not alter partial urls" do
+  test "should not alter partial urls" do
     html = govspeak_to_html("no [change](http://)")
     assert_select_within_html html, "a[href=?]", "http://", text: "change"
   end
 
-  it "should wrap output with a govspeak class" do
+  test "should wrap output with a govspeak class" do
     html = govspeak_to_html("govspeak-text")
     assert_select_within_html html, ".govspeak", text: "govspeak-text"
   end
 
-  it "should mark the govspeak output as html safe" do
+  test "should mark the govspeak output as html safe" do
     html = govspeak_to_html("govspeak-text")
     assert html.html_safe?
   end
 
-  it "should produce UTF-8 for HTML entities" do
+  test "should produce UTF-8 for HTML entities" do
     html = govspeak_to_html("a ['funny'](/url) thing")
     assert_select_within_html html, "a", text: "‘funny’"
   end
 
-  it "does not change css class on buttons" do
+  test "does not change css class on buttons" do
     html = govspeak_to_html("{button}[Link text](https://www.gov.uk){/button}")
     assert_select_within_html html, "a.govuk-button", "Link text"
   end
 
-  it "should only extract level two headers by default" do
+  test "should only extract level two headers by default" do
     text = "# Heading 1\n\n## Heading 2\n\n### Heading 3"
     headers = govspeak_headers(text)
     assert_equal [Govspeak::Header.new("Heading 2", 2, "heading-2")], headers
   end
 
-  it "should extract header hierarchy from level 2+3 headings" do
+  test "should extract header hierarchy from level 2+3 headings" do
     text = "# Heading 1\n\n## Heading 2a\n\n### Heading 3a\n\n### Heading 3b\n\n#### Ignored heading\n\n## Heading 2b"
     headers = govspeak_header_hierarchy(text)
     assert_equal [
@@ -68,18 +66,18 @@ class GovspeakPreviewHelperTest < ActionView::TestCase
                  headers
   end
 
-  it "should raise exception when extracting header hierarchy with orphaned level 3 headings" do
+  test "should raise exception when extracting header hierarchy with orphaned level 3 headings" do
     e = assert_raise(Govspeak::OrphanedHeadingError) { govspeak_header_hierarchy("### Heading 3") }
     assert_equal "Heading 3", e.heading
   end
 
-  it "adds numbers to h2 headings" do
+  test "adds numbers to h2 headings" do
     input = "# main\n\n## first\n\n## second"
     output = '<div class="govspeak"><h1 id="main">main</h1> <h2 id="first"> <span class="number">1. </span>first</h2> <h2 id="second"> <span class="number">2. </span>second</h2></div>'
     assert_equivalent_html output, govspeak_to_html(input, heading_numbering: :auto).gsub(/\s+/, " ")
   end
 
-  it "adds sub-numbers to h3 tags" do
+  test "adds sub-numbers to h3 tags" do
     input = "## first\n\n### first point one\n\n### first point two\n\n## second\n\n### second point one"
     expected_output1 = '<h2 id="first"> <span class="number">1. </span>first</h2>'
     expected_output_1a = '<h3 id="first-point-one"> <span class="number">1.1 </span>first point one</h3>'
@@ -94,29 +92,27 @@ class GovspeakPreviewHelperTest < ActionView::TestCase
     assert_match %r{#{expected_output_2a}}, actual_output
   end
 
-  it "should not corrupt character encoding of numbered headings" do
+  test "should not corrupt character encoding of numbered headings" do
     input = "# café"
     actual_output = govspeak_to_html(input, heading_numbering: :auto)
     assert actual_output.include?("café</h1>")
   end
 
-  describe "admin flavour of govspeak" do
-    it "should wrap admin output with a govspeak class" do
-      html = govspeak_to_html("govspeak-text", { preview: true })
-      assert_select_within_html html, ".govspeak", text: "govspeak-text"
-    end
+  test "should wrap admin output with a govspeak class" do
+    html = govspeak_to_html("govspeak-text", { preview: true })
+    assert_select_within_html html, ".govspeak", text: "govspeak-text"
+  end
 
-    it "should mark the admin govspeak output as html safe" do
-      html = govspeak_to_html("govspeak-text", { preview: true })
-      assert html.html_safe?
-    end
+  test "should mark the admin govspeak output as html safe" do
+    html = govspeak_to_html("govspeak-text", { preview: true })
+    assert html.html_safe?
+  end
 
-    it "should call the embed codes helper" do
-      input = "Here is some Govspeak"
-      expected = "Expected output"
-      ContentBlockManager::FindAndReplaceEmbedCodesService.expects(:call).with(input).returns(expected)
-      govspeak_to_html(input, { preview: true })
-    end
+  test "should call the embed codes helper" do
+    input = "Here is some Govspeak"
+    expected = "Expected output"
+    ContentBlockManager::FindAndReplaceEmbedCodesService.expects(:call).with(input).returns(expected)
+    govspeak_to_html(input, { preview: true })
   end
 
 private