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Size: 1.32 KB
Versions: 20
Compression:
Stored size: 1.32 KB
Contents
require 'rspec'
require 'spec_helper'
module Berkshelf
describe Visualizer do
describe '#to_png' do
context 'when graphviz is not installed' do
before do
allow(Berkshelf).to receive(:which)
.with('dot')
.and_return(nil)
allow(Berkshelf).to receive(:which)
.with('dot.exe')
.and_return(nil)
end
it 'raises a GraphvizNotInstalled exception' do
expect { subject.to_png }.to raise_error(GraphvizNotInstalled)
end
end
context 'when the graphviz command fails', :graphviz do
before do
response = double(success?: false, stderr: 'Something happened!')
allow(subject).to receive(:shell_out).and_return(response)
end
it 'raises a GraphvizCommandFailed exception' do
expect { subject.to_png }.to raise_error(GraphvizCommandFailed)
end
end
context 'when the graphviz command succeeds', :graphviz do
it 'builds a png from a Lockfile' do
outfile = tmp_path.join('test-graph.png').to_s
lockfile = Lockfile.from_file(fixtures_path.join('lockfiles/default.lock').to_s)
Visualizer.from_lockfile(lockfile).to_png(outfile)
expect(File.exists?(outfile)).to be true
end
end
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems