Add latest changes from gitlab-org/gitlab@13-10-stable-ee

1 files changed, 57 insertions, 0 deletions

diff --git a/spec/lib/gitlab/utils/mime_type_spec.rb b/spec/lib/gitlab/utils/mime_type_spec.rb
new file mode 100644
index 00000000000..b2b6bd6c4e3
--- /dev/null
+++ b/spec/lib/gitlab/utils/mime_type_spec.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+require "fast_spec_helper"
+require "rspec/parameterized"
+
+RSpec.describe Gitlab::Utils::MimeType do
+  describe ".from_io" do
+    subject { described_class.from_io(io) }
+
+    context "input isn't an IO" do
+      let(:io) { "test" }
+
+      it "returns nil" do
+        expect(subject).to be_nil
+      end
+    end
+
+    context "input is a file" do
+      using RSpec::Parameterized::TableSyntax
+
+      where(:fixture, :mime_type) do
+        "banana_sample.gif"          | "image/gif"
+        "rails_sample.jpg"           | "image/jpeg"
+        "rails_sample.png"           | "image/png"
+        "rails_sample.bmp"           | "image/bmp"
+        "rails_sample.tif"           | "image/tiff"
+        "sample.ico"                 | "image/vnd.microsoft.icon"
+        "blockquote_fence_before.md" | "text/plain"
+        "csv_empty.csv"              | "application/x-empty"
+      end
+
+      with_them do
+        let(:io) { File.open(File.join(__dir__, "../../../fixtures", fixture)) }
+
+        it { is_expected.to eq(mime_type) }
+      end
+    end
+  end
+
+  describe ".from_string" do
+    subject { described_class.from_string(str) }
+
+    context "input isn't a string" do
+      let(:str) { nil }
+
+      it "returns nil" do
+        expect(subject).to be_nil
+      end
+    end
+
+    context "input is a string" do
+      let(:str) { "plain text" }
+
+      it { is_expected.to eq('text/plain') }
+    end
+  end
+end