Download as PDF, PPTX
![Graphviz
digraph {
"No transactions" -> "Pending £100" [label="£100 Authorisation"];
"Pending £100" -> "Completed £110" [label="£110 Presentment"];
"Pending £100" -> "Completed £50 n Pending £50" [label="£50 Presentment"];
"Completed £50 n Pending £50" -> "Completed £50 n Completed £50" [label="£50 Presentment"];
"Pending £100" -> "Completed £100" [label="£100 Presentment"];
"Completed £100" -> "Completed £100 n Completed £100" [label="£100 Presentment"];
}](https://image.slidesharecdn.com/cukenfest-190405095655/85/Doodle-Driven-Development-16-320.jpg)
![digraph {
"No transactions" -> "Pending £100" [label="£100 Authorisation"];
"Pending £100" -> "Completed £110" [label="£110 Presentment"];
"Pending £100" -> "Completed £50 n Pending £50" [label="£50 Presentment"];
"Completed £50 n Pending £50" -> "Completed £50 n Completed £50" [label="£50 Presentment"];
"Pending £100" -> "Completed £100" [label="£100 Presentment"];
"Completed £100" -> "Completed £100 n Completed £100" [label="£100 Presentment"];
}](https://image.slidesharecdn.com/cukenfest-190405095655/85/Doodle-Driven-Development-24-320.jpg)
![foreach (file('/presentment.dot') as $line) {
if (!preg_match('/->/', $line)) {
continue;
}
$pattern = '/"(?<start>.*)".*->.*"(?<end>.*)".*label="(?<transition>.*?)"/';
if (!preg_match($pattern, $line, $matches)) {
throw new Exception ("Cannot parse line:n$line");
}
$this->setUp($matches['start']);
$this->applyEvent($matches['end']);
$this->assertEndState($matches['transition']);
}](https://image.slidesharecdn.com/cukenfest-190405095655/85/Doodle-Driven-Development-25-320.jpg)
Doodle Driven Development
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- 8. Scenario: Present forfull amount Given I have a pending transaction for £100 When a presentment for £100 is received Then I should have a completed transaction for £100 Scenario: Present for less than full amount Given I have a pending transaction for £100 When a presentment for £50 is received Then I should have a completed transaction for £50 And I should have a pending transaction for £50
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- 12. Effectivediscoverywithdrawings · Create theconditions where it can happen · Pick the right formats · Don't force it
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- 14. Gherkinisgreat: 1. Looks likethe conversation 2. Trackable in VCS 3. Parseable by machines
- 15. Potentialformats · HTML+SVG+CSS · Mermaid.js ·Asciio · Asciitosvg · GraphViz
- 16. Graphviz digraph { "No transactions"-> "Pending £100" [label="£100 Authorisation"]; "Pending £100" -> "Completed £110" [label="£110 Presentment"]; "Pending £100" -> "Completed £50 n Pending £50" [label="£50 Presentment"]; "Completed £50 n Pending £50" -> "Completed £50 n Completed £50" [label="£50 Presentment"]; "Pending £100" -> "Completed £100" [label="£100 Presentment"]; "Completed £100" -> "Completed £100 n Completed £100" [label="£100 Presentment"]; }
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- 21. Effectiveformulation · Find aformat that is 'close enough' · Try and forget the tools during discovery · Sync based on mtime
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- 24. digraph { "No transactions"-> "Pending £100" [label="£100 Authorisation"]; "Pending £100" -> "Completed £110" [label="£110 Presentment"]; "Pending £100" -> "Completed £50 n Pending £50" [label="£50 Presentment"]; "Completed £50 n Pending £50" -> "Completed £50 n Completed £50" [label="£50 Presentment"]; "Pending £100" -> "Completed £100" [label="£100 Presentment"]; "Completed £100" -> "Completed £100 n Completed £100" [label="£100 Presentment"]; }
- 25. foreach (file('/presentment.dot') as$line) { if (!preg_match('/->/', $line)) { continue; } $pattern = '/"(?<start>.*)".*->.*"(?<end>.*)".*label="(?<transition>.*?)"/'; if (!preg_match($pattern, $line, $matches)) { throw new Exception ("Cannot parse line:n$line"); } $this->setUp($matches['start']); $this->applyEvent($matches['end']); $this->assertEndState($matches['transition']); }
- 26. Effectiveautomation · Cheat theformat · Do the easiest thing that works · Write brittle tests
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