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59 lines
2.1 KiB
Clojure
59 lines
2.1 KiB
Clojure
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(ns more-speech.migrator-spec
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(:require [speclj.core :refer :all]
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[more-speech.migrator :refer :all]
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))
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(describe "The Migrator"
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(with-stubs)
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(before-all (reset! migration-filename "tmp/migration"))
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(after (when (.exists (clojure.java.io/file @migration-filename))
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(clojure.java.io/delete-file @migration-filename)))
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(it "returns zero if no migration file"
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(should= 0 (get-migration-level)))
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(it "reads the migration level"
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(set-migration-level 42)
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(should= 42 (get-migration-level)))
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(it "determines migrations to perform if no migration file"
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(should= [1 2 3 4] (get-needed-migrations 4)))
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(it "determines migrations to perform if level already set"
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(set-migration-level 10)
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(should= [11 12 13 14 15] (get-needed-migrations 15)))
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(it "throws exception if set level is greater than needed."
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(set-migration-level 10)
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(should-throw (get-needed-migrations 9)))
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(it "should not execute migrations if at current level"
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(set-migration-level 1)
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(reset! migrations {1 (stub :migration-one)})
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(migrate-to 1)
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(should-not-have-invoked :migration-one)
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(should= 1 (get-migration-level)))
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(it "should execute appropriate migrations if not at current level"
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(set-migration-level 1)
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(reset! migrations {1 (stub :migration-one)
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2 (stub :migration-two)
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3 (stub :migration-three)
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4 (stub :migration-four)})
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(migrate-to 3)
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(should-not-have-invoked :migration-one)
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(should-have-invoked :migration-two)
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(should-have-invoked :migration-three)
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(should-not-have-invoked :migration-four)
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(should= 3 (get-migration-level)))
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(it "should complain if a migration function is missing"
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(set-migration-level 1)
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(reset! migrations {1 (stub :migration-one)
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2 (stub :migration-two)
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4 (stub :migration-four)})
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(should-throw Exception "Missing migrations [3]." (migrate-to 4))
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(should-not-have-invoked :migration-one)
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(should-not-have-invoked :migration-two)
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(should-not-have-invoked :migration-four))
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)
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