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Generate a minimal k6 script from the scenario.requests #1898

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Generate a minimal k6 script from the scenario.requests #1898

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33 changes: 29 additions & 4 deletions bzt/modules/k6.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,8 @@
See the License for the specific language governing permissions and
limitations under the License.
"""
import os

from bzt import TaurusConfigError, ToolError
from bzt.modules import ScenarioExecutor
from bzt.modules.console import ExecutorWidget
Expand All @@ -32,12 +34,17 @@ def __init__(self):

def prepare(self):
super(K6Executor, self).prepare()
scenario = self.get_scenario()
self.install_required_tools()

self.script = self.get_script_path()
if not self.script:
raise TaurusConfigError("'script' should be present for k6 executor")
script = self.get_script_path()
if script:
if not os.path.exists(script):
raise TaurusConfigError("k6: script '%s' doesn't exist" % script)
elif scenario.get("requests"):
script = self.generate_k6_script_from_requests(scenario)

self.script = script
self.stdout = open(self.engine.create_artifact("k6", ".out"), "w")
self.stderr = open(self.engine.create_artifact("k6", ".err"), "w")

Expand Down Expand Up @@ -94,8 +101,26 @@ def install_required_tools(self):
if not self.k6.check_if_installed():
self.k6.install()

def generate_k6_script_from_requests(self, scenario):
"""
Generate k6 script from requests
:return:
"""
filename = self.engine.create_artifact("script", ".js")
with open(filename, "w") as f:
f.write(f'import http from "k6/http";')
f.write(f'export default function () {{')
for request in scenario.get("requests"):
f.write(f'http.get("{request}");')
f.write(f'}}')
return filename

def resource_files(self):
return [self.get_script_path(required=True)]
script = self.get_script_path()
if script:
return [script]
else:
return []


class K6LogReader(ResultsReader):
Expand Down