开发环境

;; run a single test with clojure.test
some-ns=> (clojure.test/run-test metabase.util-test/add-period-test)

Testing metabase.util-test

Ran 1 tests containing 4 assertions.
0 failures, 0 errors.
{:test 1, :pass 4, :fail 0, :error 0, :type :summary}

;; run all tests in the namespace
some-ns=> (clojure.test/run-tests 'metabase.util-test)

Testing metabase.util-test
{:result true, :num-tests 100, :seed 1696600311261, :time-elapsed-ms 45, :test-var "pick-first-test"}

Ran 33 tests containing 195 assertions.
0 failures, 0 errors.
{:test 33, :pass 195, :fail 0, :error 0, :type :summary}

;; run tests for a set of namespaces related to a feature you are working on (eg pulses)
some-ns=> (let [namespaces '[metabase.pulse.markdown-test metabase.pulse.parameters-test]]
            (apply require namespaces) ;; make sure the test namespaces are loaded
            (apply clojure.test/run-tests namespaces))

Testing metabase.pulse.markdown-test

Testing metabase.pulse.parameters-test

Ran 5 tests containing 147 assertions.
0 failures, 0 errors.
{:test 5, :pass 147, :fail 0, :error 0, :type :summary}

;; but we also have a lovely test runner with lots of cool options
some-ns=> (metabase.test-runner/find-and-run-tests-repl {:namespace-pattern ".*pulse.*"})
Running tests with options {:mode :repl, :namespace-pattern ".*pulse.*", :exclude-directories ["classes" "dev" "enterprise/backend/src" "local" "resources" "resources-ee" "src" "target" "test_config" "test_resources"], :test-warn-time 3000}
Excluding directory "dev/src"
Excluding directory "local/src"
Looking for test namespaces in directory test
Finding tests took 1.6 s.
Excluding directory "test_resources"
Excluding directory "enterprise/backend/src"
Looking for test namespaces in directory enterprise/backend/test
Excluding directory "src"
Excluding directory "resources"
Running 159 tests
...

;; you can even specify a directory if you're working on a subfeature like that
some-ns=> (metabase.test-runner/find-and-run-tests-repl {:only "test/metabase/pulse/"})
Running tests with options {:mode :repl, :namespace-pattern #"^metabase.*", :exclude-directories ["classes" "dev" "enterprise/backend/src" "local" "resources" "resources-ee" "src" "target" "test_config" "test_resources"], :test-warn-time 3000, :only "test/metabase/pulse/"}
Running tests in "test/metabase/pulse/"
Looking for test namespaces in directory test/metabase/pulse
Finding tests took 37.0 ms.
Running 65 tests
...

(defmethod tx/dbdef->connection-details :postgres
  [_ context {:keys [database-name]}]
  (merge
   {:host     (tx/db-test-env-var-or-throw :postgresql :host "localhost")
    :port     (tx/db-test-env-var-or-throw :postgresql :port 5432)
    :timezone :America/Los_Angeles}
   (when-let [user (tx/db-test-env-var :postgresql :user)]
     {:user user})
   (when-let [password (tx/db-test-env-var :postgresql :password)]
     {:password password})
   (when (= context :db)
     {:db database-name})))

some-ns=> (take 10 (keys environ.core/env))
(:mb-redshift-test-password
 :java-class-path
 :path
 :mb-athena-test-s3-staging-dir
 :iterm-profile
 :mb-snowflake-test-warehouse
 :mb-bigquery-cloud-sdk-test-service-account-json
 :tmpdir
 :mb-oracle-test-service-name
 :sun-management-compiler)