From ef70677e881855f1e7b51f158752e1ee78b27a96 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sun, 9 Oct 2016 18:03:15 +0200
Subject: [PATCH] Add test for `Formatter.columns`.
---
Library/Homebrew/cask/spec/formatter_spec.rb | 56 ++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Library/Homebrew/cask/spec/formatter_spec.rb
diff --git a/Library/Homebrew/cask/spec/formatter_spec.rb b/Library/Homebrew/cask/spec/formatter_spec.rb
new file mode 100644
index 0000000000..7e143d9331
--- /dev/null
+++ b/Library/Homebrew/cask/spec/formatter_spec.rb
@@ -0,0 +1,56 @@
+require "spec_helper"
+require "utils/formatter"
+require "utils/tty"
+
+describe Formatter do
+ describe "::columns" do
+ let(:input) {
+ [
+ 'aa',
+ 'bbb',
+ 'ccc',
+ 'dd'
+ ]
+ }
+ subject { described_class.columns(input) }
+
+ it "doesn't output columns if $stdout is not a TTY." do
+ allow_any_instance_of(IO).to receive(:tty?).and_return(false)
+ allow(Tty).to receive(:width).and_return(10)
+
+ expect(subject).to eq(
+ "aa\n" \
+ "bbb\n" \
+ "ccc\n" \
+ "dd\n"
+ )
+ end
+
+ describe "$stdout is a TTY" do
+ it "outputs columns" do
+ allow_any_instance_of(IO).to receive(:tty?).and_return(true)
+ allow(Tty).to receive(:width).and_return(10)
+
+ expect(subject).to eq(
+ "aa ccc\n" \
+ "bbb dd\n"
+ )
+ end
+
+ it "outputs only one line if everything fits" do
+ allow_any_instance_of(IO).to receive(:tty?).and_return(true)
+ allow(Tty).to receive(:width).and_return(20)
+
+ expect(subject).to eq(
+ "aa bbb ccc dd\n"
+ )
+ end
+ end
+
+ describe "with empty input" do
+ let(:input) { [] }
+
+ it { is_expected.to eq("\n") }
+ end
+ end
+end
--
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