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require_relative 'test_helper'
# Watch entity tests
class TestWatch < MiniTest::Test
def test_watch_pod_success
stub_core_api_list
expected = [
{ 'type' => 'ADDED', 'resourceVersion' => '1389' },
{ 'type' => 'MODIFIED', 'resourceVersion' => '1390' },
{ 'type' => 'DELETED', 'resourceVersion' => '1398' }
]
stub_request(:get, %r{/watch/pods})
.to_return(body: open_test_file('watch_stream.json'),
status: 200)
client = Kubeclient::Client.new('http://localhost:8080/api/', 'v1')
client.watch_pods.to_enum.with_index do |notice, index|
assert_instance_of(Kubeclient::Resource, notice)
assert_equal(expected[index]['type'], notice.type)
assert_equal('Pod', notice.object.kind)
assert_equal('php', notice.object.metadata.name)
assert_equal(expected[index]['resourceVersion'],
notice.object.metadata.resourceVersion)
end
end
def test_watch_pod_block
stub_core_api_list
stub_request(:get, %r{/watch/pods})
.to_return(body: open_test_file('watch_stream.json'),
status: 200)
client = Kubeclient::Client.new('http://localhost:8080/api/', 'v1')
yielded = []
client.watch_pods { |notice| yielded << notice.type }
assert_equal %w[ADDED MODIFIED DELETED], yielded
end
def test_watch_pod_raw
stub_core_api_list
stub_request(:get, %r{/watch/pods}).to_return(
body: open_test_file('watch_stream.json'),
status: 200
)
client = Kubeclient::Client.new('http://localhost:8080/api/', 'v1')
got = nil
client.watch_pods(as: :raw).each { |notice| got = notice }
assert_match(/\A{"type":"DELETED"/, got)
end
def test_watch_pod_failure
stub_core_api_list
stub_request(:get, %r{/watch/pods}).to_return(status: 404)
client = Kubeclient::Client.new('http://localhost:8080/api/', 'v1')
assert_raises(Kubeclient::HttpError) do
client.watch_pods.each do
end
end
end
def test_watch_pod_follow_redirect
stub_core_api_list
redirect = 'http://localhost:1234/api/v1/watch/pods'
stub_request(:get, %r{/watch/pods})
.to_return(status: 302, headers: { location: redirect })
stub_request(:get, redirect).to_return(
body: open_test_file('watch_stream.json'),
status: 200
)
client = Kubeclient::Client.new('http://localhost:8080/api/', 'v1')
got = nil
client.watch_pods.each { |notice| got = notice }
assert_equal('DELETED', got.type)
end
def test_watch_pod_max_redirect
stub_core_api_list
redirect = 'http://localhost:1234/api/v1/watcher/pods'
stub_request(:get, %r{/watch/pods})
.to_return(status: 302, headers: { location: redirect })
stub_request(:get, redirect).to_return(
body: open_test_file('watch_stream.json'),
status: 200
)
client = Kubeclient::Client.new('http://localhost:8080/api/', 'v1', http_max_redirects: 0)
assert_raises(Kubeclient::HttpError) do
client.watch_pods.each do
end
end
end
# Ensure that WatchStream respects a format that's not JSON
def test_watch_stream_text
url = 'http://www.example.com/foobar'
expected_lines = open_test_file('pod_log.txt').read.split("\n")
stub_request(:get, url)
.to_return(body: open_test_file('pod_log.txt'),
status: 200)
stream = Kubeclient::Common::WatchStream.new(URI.parse(url), {}, formatter: ->(v) { v })
stream.to_enum.with_index do |line, index|
assert_instance_of(String, line)
assert_equal(expected_lines[index], line)
end
end
def test_watch_with_resource_version
api_host = 'http://localhost:8080/api'
version = '1995'
stub_core_api_list
stub_request(:get, %r{.*\/watch/events})
.to_return(body: open_test_file('watch_stream.json'),
status: 200)
client = Kubeclient::Client.new(api_host, 'v1')
results = client.watch_events(version).to_enum
assert_equal(3, results.count)
assert_requested(:get,
"#{api_host}/v1/watch/events?resourceVersion=#{version}",
times: 1)
end
def test_watch_with_label_selector
api_host = 'http://localhost:8080/api'
selector = 'name=redis-master'
stub_core_api_list
stub_request(:get, %r{.*\/watch/events})
.to_return(body: open_test_file('watch_stream.json'),
status: 200)
client = Kubeclient::Client.new(api_host, 'v1')
results = client.watch_events(label_selector: selector).to_enum
assert_equal(3, results.count)
assert_requested(:get,
"#{api_host}/v1/watch/events?labelSelector=#{selector}",
times: 1)
end
def test_watch_with_field_selector
api_host = 'http://localhost:8080/api'
selector = 'involvedObject.kind=Pod'
stub_core_api_list
stub_request(:get, %r{.*\/watch/events})
.to_return(body: open_test_file('watch_stream.json'),
status: 200)
client = Kubeclient::Client.new(api_host, 'v1')
results = client.watch_events(field_selector: selector).to_enum
assert_equal(3, results.count)
assert_requested(:get,
"#{api_host}/v1/watch/events?fieldSelector=#{selector}",
times: 1)
end
def test_watch_with_finish_and_ebadf
api_host = 'http://localhost:8080/api'
stub_core_api_list
stub_request(:get, %r{.*\/watch/events})
.to_return(body: open_test_file('watch_stream.json'), status: 200)
client = Kubeclient::Client.new(api_host, 'v1')
watcher = client.watch_events
# explodes when StandardError is not caught
watcher.each do
watcher.finish
raise StandardError
end
assert_requested(:get, "#{api_host}/v1/watch/events", times: 1)
end
end
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