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427 lines
12 KiB
Elm
427 lines
12 KiB
Elm
module ErrorMessageTest exposing (all)
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import Elm.Syntax.Range exposing (Range)
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import Expect exposing (Expectation)
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import Lint.Rule as Rule exposing (Error)
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import Lint.Test.ErrorMessage as ErrorMessage exposing (ExpectedErrorData)
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import Test exposing (Test, describe, test)
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all : Test
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all =
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describe "Test.ErrorMessage"
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[ parsingFailureTest
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, didNotExpectErrorsTest
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, messageMismatchTest
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, underMismatchTest
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, wrongLocationTest
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, expectedMoreErrorsTest
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, tooManyErrorsTest
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]
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expectMessageEqual : String -> String -> Expectation
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expectMessageEqual expectedMessage =
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Expect.all
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[ Expect.equal <| String.trim expectedMessage
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, \receivedMessage ->
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Expect.all
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(String.lines receivedMessage
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|> List.map
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(\line () ->
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(String.length line <= 76)
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|> Expect.true ("Message has line longer than 76 characters:\n\n" ++ line)
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)
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)
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()
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]
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parsingFailureTest : Test
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parsingFailureTest =
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test "parsingFailure" <|
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\() ->
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ErrorMessage.parsingFailure
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|> expectMessageEqual """
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TEST SOURCE CODE PARSING ERROR
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I could not parse the test source code, because it was not valid Elm code.
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Hint: Maybe you forgot to add the module definition at the top, like:
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`module A exposing (..)`"""
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didNotExpectErrorsTest : Test
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didNotExpectErrorsTest =
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test "didNotExpectErrors" <|
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\() ->
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let
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errors : List Error
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errors =
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[ Rule.error "Some error" dummyRange
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, Rule.error "Some other error" dummyRange
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]
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in
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ErrorMessage.didNotExpectErrors errors
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|> expectMessageEqual """
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DID NOT EXPECT ERRORS
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I expected no errors but found:
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- "Some error"
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at { start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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- "Some other error"
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at { start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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"""
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messageMismatchTest : Test
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messageMismatchTest =
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test "messageMismatch" <|
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\() ->
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let
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expectedError : ExpectedErrorData
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expectedError =
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{ message = "Forbidden use of Debug"
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, under = "Debug.log"
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}
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error : Error
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error =
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Rule.error "Forbidden use of Debu" dummyRange
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in
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ErrorMessage.messageMismatch expectedError error
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|> expectMessageEqual """
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UNEXPECTED ERROR MESSAGE
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I was looking for the error with the following message:
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`Forbidden use of Debug`
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but I found the following error message:
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`Forbidden use of Debu`"""
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underMismatchTest : Test
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underMismatchTest =
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describe "underMismatch"
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[ test "with single-line extracts" <|
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\() ->
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let
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error : Error
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error =
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Rule.error "Some error" dummyRange
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in
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ErrorMessage.underMismatch
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error
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{ under = "abcd"
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, codeAtLocation = "abcd = 1"
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}
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|> expectMessageEqual """
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UNEXPECTED ERROR LOCATION
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I found an error with the following message:
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`Some error`
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which I was expecting, but I found it under:
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`abcd = 1`
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when I was expecting it under:
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`abcd`
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Hint: Maybe you're passing the `Range` of a wrong node when
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calling `Rule.error`"""
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, test "with multi-line extracts" <|
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\() ->
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let
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error : Error
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error =
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Rule.error "Some other error" dummyRange
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in
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ErrorMessage.underMismatch
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error
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{ under = "abcd =\n 1\n + 2"
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, codeAtLocation = "abcd =\n 1"
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}
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|> expectMessageEqual """
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UNEXPECTED ERROR LOCATION
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I found an error with the following message:
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`Some other error`
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which I was expecting, but I found it under:
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```
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abcd =
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1
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```
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when I was expecting it under:
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```
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abcd =
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1
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+ 2
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```
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Hint: Maybe you're passing the `Range` of a wrong node when
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calling `Rule.error`"""
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]
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wrongLocationTest : Test
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wrongLocationTest =
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describe "wrongLocation"
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[ test "with single-line extracts" <|
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\() ->
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let
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error : Error
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error =
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Rule.error
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"Some error"
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{ start = { row = 3, column = 1 }, end = { row = 3, column = 5 } }
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in
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ErrorMessage.wrongLocation
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error
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{ start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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"abcd"
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|> expectMessageEqual """
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UNEXPECTED ERROR LOCATION
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I was looking for the error with the following message:
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`Some error`
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under the following code:
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`abcd`
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and I found it, but the exact location you specified is not the one I found.
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I was expecting the error at:
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{ start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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but I found it at:
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{ start = { row = 3, column = 1 }, end = { row = 3, column = 5 } }
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"""
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, test "with multi-line extracts" <|
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\() ->
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let
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error : Error
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error =
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Rule.error
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"Some other error"
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{ start = { row = 4, column = 1 }, end = { row = 5, column = 3 } }
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in
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ErrorMessage.wrongLocation
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error
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{ start = { row = 2, column = 1 }, end = { row = 3, column = 3 } }
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"abcd =\n 1"
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|> expectMessageEqual """
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UNEXPECTED ERROR LOCATION
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I was looking for the error with the following message:
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`Some other error`
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under the following code:
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```
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abcd =
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1
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```
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and I found it, but the exact location you specified is not the one I found.
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I was expecting the error at:
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{ start = { row = 2, column = 1 }, end = { row = 3, column = 3 } }
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but I found it at:
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{ start = { row = 4, column = 1 }, end = { row = 5, column = 3 } }
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"""
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]
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expectedMoreErrorsTest : Test
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expectedMoreErrorsTest =
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test "expectedMoreErrors" <|
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\() ->
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let
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missingErrors : List ExpectedErrorData
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missingErrors =
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[ { message = "Forbidden use of Debug"
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, under = "Debug.log"
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}
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, { message = "Forbidden use of Debug"
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, under = "Debug.log"
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}
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]
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in
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ErrorMessage.expectedMoreErrors missingErrors
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|> expectMessageEqual """
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RULE REPORTED LESS ERRORS THAN EXPECTED
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I expected to see 2 more errors:
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- "Forbidden use of Debug"
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- "Forbidden use of Debug"
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"""
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tooManyErrorsTest : Test
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tooManyErrorsTest =
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describe "tooManyErrors"
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[ test "with one extra error" <|
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\() ->
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let
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extraErrors : List Rule.Error
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extraErrors =
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[ Rule.error
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"Forbidden use of Debug"
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{ start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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]
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in
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ErrorMessage.tooManyErrors extraErrors
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|> expectMessageEqual """
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RULE REPORTED MORE ERRORS THAN EXPECTED
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I found 1 error too many:
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- "Forbidden use of Debug"
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at { start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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"""
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, test "with multiple extra errors" <|
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\() ->
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let
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extraErrors : List Rule.Error
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extraErrors =
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[ Rule.error
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"Forbidden use of Debug"
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{ start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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, Rule.error
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"Forbidden use of Debug"
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{ start = { row = 3, column = 1 }, end = { row = 3, column = 5 } }
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]
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in
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ErrorMessage.tooManyErrors extraErrors
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|> expectMessageEqual """
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RULE REPORTED MORE ERRORS THAN EXPECTED
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I found 2 errors too many:
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- "Forbidden use of Debug"
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at { start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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- "Forbidden use of Debug"
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at { start = { row = 3, column = 1 }, end = { row = 3, column = 5 } }
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"""
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]
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locationIsAmbiguousInSourceCodeTest : Test
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locationIsAmbiguousInSourceCodeTest =
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describe "locationIsAmbiguousInSourceCode"
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[ test "with single-line extracts" <|
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\() ->
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let
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sourceCode : String
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sourceCode =
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"module A exposing (..)\nabcd\nabcd"
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under : String
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under =
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"abcd"
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error : Error
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error =
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Rule.error
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"Some error"
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{ start = { row = 3, column = 1 }, end = { row = 3, column = 5 } }
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in
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ErrorMessage.locationIsAmbiguousInSourceCode
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sourceCode
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error
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under
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(String.indexes under sourceCode)
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|> expectMessageEqual """
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AMBIGUOUS ERROR LOCATION
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Your test passes, but where the message appears is ambiguous.
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You are looking for the following error message:
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`Some error`
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and expecting to see it under:
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`abcd`
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I found 2 locations where that code appeared. Please
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use `Lint.Rule.atExactly` to make the part you were targetting unambiguous.
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Tip: I found them at:
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- { start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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- { start = { row = 3, column = 1 }, end = { row = 3, column = 5 } }
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"""
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, test "with multi-line extracts" <|
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\() ->
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let
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sourceCode : String
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sourceCode =
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"module A exposing (..)\nabcd =\n 1\nabcd =\n 1\nabcd =\n 1"
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under : String
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under =
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"abcd =\n 1"
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error : Error
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error =
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Rule.error
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"Some other error"
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{ start = { row = 3, column = 1 }, end = { row = 4, column = 3 } }
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in
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ErrorMessage.locationIsAmbiguousInSourceCode
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sourceCode
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error
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under
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(String.indexes under sourceCode)
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|> expectMessageEqual """
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AMBIGUOUS ERROR LOCATION
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Your test passes, but where the message appears is ambiguous.
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You are looking for the following error message:
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`Some other error`
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and expecting to see it under:
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```
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abcd =
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1
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```
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I found 3 locations where that code appeared. Please
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use `Lint.Rule.atExactly` to make the part you were targetting unambiguous.
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Tip: I found them at:
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- { start = { row = 2, column = 1 }, end = { row = 3, column = 4 } }
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- { start = { row = 4, column = 1 }, end = { row = 5, column = 4 } }
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- { start = { row = 6, column = 1 }, end = { row = 7, column = 4 } }
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"""
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]
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dummyRange : Range
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dummyRange =
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{ start = { row = 2, column = 1 }, end = { row = 2, column = 5 } }
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