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279 lines
13 KiB
Elm
279 lines
13 KiB
Elm
module NoUnsafeRegexFromLiteralTest exposing (all)
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import Elm.Project
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import Expect exposing (Expectation)
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import Json.Decode as Decode
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import NoUnsafeRegexFromLiteral exposing (rule)
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import Review.Project as Project exposing (Project)
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import Review.Test
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import Test exposing (Test, describe, test)
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helpersRegexSourceCode : String
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helpersRegexSourceCode =
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"""module SomeModule.Regex exposing (fromLiteralFunc)
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import Regex exposing (Regex)
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fromLiteralFunc : String -> Regex
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fromLiteralFunc = something
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"""
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configuration : { unsafeFunction : String, moduleAlias : Maybe String }
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configuration =
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{ unsafeFunction = "SomeModule.Regex.fromLiteralFunc"
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, moduleAlias = Just "RegexUtil"
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}
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expectErrors : List Review.Test.ExpectedError -> Review.Test.ReviewResult -> Expectation
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expectErrors expectedErrors =
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Review.Test.expectErrorsForModules [ ( "A", expectedErrors ) ]
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all : Test
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all =
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describe "NoUnsafeRegexFromLiteral"
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[ test "should not report calls to target function with a valid literal regex" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex
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a = SomeModule.Regex.fromLiteralFunc "^abc$"
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> Review.Test.expectNoErrors
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, test "should report calls to target function with an invalid literal regex" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex
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a = SomeModule.Regex.fromLiteralFunc "^ab($cd"
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> expectErrors
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[ Review.Test.error
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{ message = "SomeModule.Regex.fromLiteralFunc needs to be called with a valid regex."
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, details =
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[ "This function serves to give you more guarantees about creating regular expressions, but if the argument is dynamic or too complex, I won't be able to tell you."
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, "Note that if you are using a triple-quote string, elm-syntax has a bug where it mis-parses the string and this could be a false report. Switch to using a single-quote string and everything should be fine."
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]
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, under = """SomeModule.Regex.fromLiteralFunc "^ab($cd\""""
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}
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]
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, test "should not report calls to target function with an valid literal regex containing back-slashes" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex
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a = SomeModule.Regex.fromLiteralFunc "\\\\s"
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> Review.Test.expectNoErrors
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, test "should report calls to target function with a non-literal value" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex
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a = SomeModule.Regex.fromLiteralFunc dynamicValue
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> expectErrors
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[ Review.Test.error
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{ message = "SomeModule.Regex.fromLiteralFunc needs to be called with a static string literal."
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, details =
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[ "This function serves to give you more guarantees about creating regular expressions, but if the argument is dynamic or too complex, I won't be able to tell you."
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, "Either make the argument static or use Regex.fromString instead."
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]
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, under = "SomeModule.Regex.fromLiteralFunc dynamicValue"
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}
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]
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, test "should report invalid calls if the function is called through a module alias" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex as R
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a = R.fromLiteralFunc dynamicValue
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> expectErrors
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[ Review.Test.error
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{ message = "SomeModule.Regex.fromLiteralFunc needs to be called with a static string literal."
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, details =
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[ "This function serves to give you more guarantees about creating regular expressions, but if the argument is dynamic or too complex, I won't be able to tell you."
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, "Either make the argument static or use Regex.fromString instead."
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]
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, under = "R.fromLiteralFunc dynamicValue"
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}
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]
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, test "should report invalid calls if the function is called through a direct import" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex exposing (fromLiteralFunc)
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a = fromLiteralFunc dynamicValue
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> expectErrors
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[ Review.Test.error
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{ message = "SomeModule.Regex.fromLiteralFunc needs to be called with a static string literal."
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, details =
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[ "This function serves to give you more guarantees about creating regular expressions, but if the argument is dynamic or too complex, I won't be able to tell you."
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, "Either make the argument static or use Regex.fromString instead."
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]
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, under = "fromLiteralFunc dynamicValue"
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}
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]
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, test "should report invalid calls if the function is called through an import that exposes all" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex exposing (..)
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a = fromLiteralFunc dynamicValue
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> expectErrors
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[ Review.Test.error
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{ message = "SomeModule.Regex.fromLiteralFunc needs to be called with a static string literal."
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, details =
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[ "This function serves to give you more guarantees about creating regular expressions, but if the argument is dynamic or too complex, I won't be able to tell you."
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, "Either make the argument static or use Regex.fromString instead."
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]
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, under = "fromLiteralFunc dynamicValue"
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}
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]
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, test "should not report invalid calls if the function was not imported" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex
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a = fromLiteralFunc dynamicValue
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> Review.Test.expectNoErrors
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, test "should report when function is used is used in a non 'function call' context" <|
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\_ ->
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[ """module A exposing (..)
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import SomeModule.Regex
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fromLiteralAlias = SomeModule.Regex.fromLiteralFunc
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> expectErrors
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[ Review.Test.error
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{ message = "SomeModule.Regex.fromLiteralFunc must be called directly."
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, details =
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[ "This function serves to give you more guarantees about creating regular expressions, but I can't determine how it is used if you do something else than calling it directly."
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]
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, under = "SomeModule.Regex.fromLiteralFunc"
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}
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]
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, test "should report a global error when the target function could not be found in the project" <|
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\_ ->
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"""module A exposing (..)
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import SomeModule.Regex
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a = SomeModule.Regex.fromLiteralFunc "^abc$"
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"""
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|> Review.Test.runWithProjectData project (rule configuration)
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|> Review.Test.expectGlobalErrors
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[ { message = "Could not find SomeModule.Regex.fromLiteralFunc"
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, details =
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[ "I want to provide guarantees on the use of this function, but I can't find it. It is likely that it was renamed, which prevents me from giving you these guarantees."
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, "You should rename it back or update this rule to the new name. If you do not use the function anymore, remove the rule."
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]
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}
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]
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, test "should not report native Regex.fromString with a non-literal string" <|
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\_ ->
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[ """module A exposing (..)
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import Regex
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a = Regex.fromString value
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> Review.Test.expectNoErrors
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, test "should report native Regex.fromString with a literal string (with a preferred module alias)" <|
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\_ ->
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[ """module A exposing (..)
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import Regex
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a = Regex.fromString "(abc|"
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule configuration)
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|> Review.Test.expectErrorsForModules
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[ ( "A"
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, [ Review.Test.error
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{ message = "Use `RegexUtil.fromLiteralFunc` instead"
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, details =
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[ "By using `RegexUtil.fromLiteralFunc`, I can make sure that the regex you generated was valid."
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, " import SomeModule.Regex as RegexUtil\n myRegex = RegexUtil.fromLiteralFunc \"(abc|def)\""
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]
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, under = "Regex.fromString"
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}
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]
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)
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]
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, test "should report native Regex.fromString with a literal string (without a preferred module alias)" <|
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\_ ->
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[ """module A exposing (..)
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import Regex
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a = Regex.fromString "(abc|"
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""", helpersRegexSourceCode ]
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|> Review.Test.runOnModulesWithProjectData project (rule { configuration | moduleAlias = Nothing })
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|> Review.Test.expectErrorsForModules
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[ ( "A"
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, [ Review.Test.error
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{ message = "Use `SomeModule.Regex.fromLiteralFunc` instead"
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, details =
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[ "By using `SomeModule.Regex.fromLiteralFunc`, I can make sure that the regex you generated was valid."
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, " import SomeModule.Regex\n myRegex = SomeModule.Regex.fromLiteralFunc \"(abc|def)\""
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]
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, under = "Regex.fromString"
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}
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]
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)
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]
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, test "should report a configuration error when module name is invalid" <|
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\_ ->
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rule
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{ unsafeFunction = "invalid name"
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, moduleAlias = Nothing
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}
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|> Review.Test.expectConfigurationError
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{ message = "invalid name is not a valid function name"
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, details = [ "Some details" ]
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}
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]
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-- PROJECT DATA
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project : Project
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project =
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Project.new
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|> Project.addElmJson (createElmJson applicationElmJson)
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createElmJson : String -> { path : String, raw : String, project : Elm.Project.Project }
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createElmJson rawElmJson =
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case Decode.decodeString Elm.Project.decoder rawElmJson of
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Ok elmJson ->
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{ path = "elm.json"
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, raw = rawElmJson
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, project = elmJson
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}
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Err _ ->
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Debug.todo "Invalid elm.json supplied to test"
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applicationElmJson : String
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applicationElmJson =
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"""{
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"type": "application",
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"source-directories": [
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"src"
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],
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"elm-version": "0.19.1",
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"dependencies": {
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"direct": {
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"elm/core": "1.0.0"
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},
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"indirect": {}
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},
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"test-dependencies": {
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"direct": {},
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"indirect": {}
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}
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}"""
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