This adds these two new test cases:
context "when updating a mentioned user" do
it "updates the mention record" do
# and
context "when there are duplicate mentions" do
it "creates a single mention record per mention" do
Apart from that, this groups mention related tests into a context, renames one test, and moves setup of another test into the test case itself from the before block (to make it more clear, that test is the only one that uses that setup). See the PR's commit history.
e7292e1682