@@ -905,3 +905,53 @@ error: unused optional dependency
905905 let renderer = Renderer :: plain ( ) ;
906906 assert_data_eq ! ( renderer. render( input) . to_string( ) , expected) ;
907907}
908+ 909+ #[ test]
910+ fn origin_correct_start_line ( ) {
911+ let source = "aaa\n bbb\n ccc\n ddd\n " ;
912+ let input = Level :: Error . title ( "title" ) . snippet (
913+ Snippet :: source ( source)
914+ . origin ( "origin.txt" )
915+ . fold ( false )
916+ . annotation ( Level :: Error . span ( 8 ..8 + 3 ) . label ( "annotation" ) ) ,
917+ ) ;
918+ 919+ let expected = str![ [ r#"
920+ error: title
921+ --> origin.txt:3:1
922+ |
923+ 1 | aaa
924+ 2 | bbb
925+ 3 | ccc
926+ | ^^^ annotation
927+ 4 | ddd
928+ |
929+ "# ] ] ;
930+ let renderer = Renderer :: plain ( ) ;
931+ assert_data_eq ! ( renderer. render( input) . to_string( ) , expected) ;
932+ }
933+ 934+ #[ test]
935+ fn origin_correct_mid_line ( ) {
936+ let source = "aaa\n bbb\n ccc\n ddd\n " ;
937+ let input = Level :: Error . title ( "title" ) . snippet (
938+ Snippet :: source ( source)
939+ . origin ( "origin.txt" )
940+ . fold ( false )
941+ . annotation ( Level :: Error . span ( 8 + 1 ..8 + 3 ) . label ( "annotation" ) ) ,
942+ ) ;
943+ 944+ let expected = str![ [ r#"
945+ error: title
946+ --> origin.txt:3:2
947+ |
948+ 1 | aaa
949+ 2 | bbb
950+ 3 | ccc
951+ | ^^ annotation
952+ 4 | ddd
953+ |
954+ "# ] ] ;
955+ let renderer = Renderer :: plain ( ) ;
956+ assert_data_eq ! ( renderer. render( input) . to_string( ) , expected) ;
957+ }
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