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Zoo DDD tests
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| # Rule 1. Carnivors and herbivors cannot live together. | |
| # For example, moving a lion to an enclosement with a zebra is not good, since the zebra will be eaten. | |
| zoo = Zoo() | |
| zoo.add_fenced_enclosure('Fenced area 1') | |
| zoo.add_fenced_enclosure('Fenced area 2') | |
| zoo.add_carnivore('lion', 'Fenced area 1') | |
| zoo.add_herbivore('zebra', 'Fenced area 2') | |
| assertThrows(zoo.move_animal('lion', 'Fenced area 2')) | |
| # Rule 2: Herbivors can live side-by-side. | |
| # Moving a giraffe to the enclosement of an elephant is OK, since both species are herbivors and wont kill each other. | |
| zoo = Zoo() | |
| zoo.add_fenced_enclosure('Fenced area 1') | |
| zoo.add_fenced_enclosure('Fenced area 2') | |
| zoo.add_herbivore('giraffe', 'Fenced area 1') | |
| zoo.add_herbivore('elephant', 'Fenced area 2') | |
| zoo.move_animal('giraffe', 'Fenced area 2') | |
| verify_domain_event('animal moved', {animal:'giraffe', enclosement:'Fenced area 2'}) | |
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