src/librustdoc/clean/types/tests.rs

   1 use super::*;
   2
   3 use crate::clean::collapse_doc_fragments;
   4
   5 use rustc_span::create_default_session_globals_then;
   6 use rustc_span::source_map::DUMMY_SP;
   7 use rustc_span::symbol::Symbol;
   8
   9 fn create_doc_fragment(s: &str) -> Vec<DocFragment> {
  10     vec![DocFragment {
  11         span: DUMMY_SP,
  12         parent_module: None,
  13         doc: Symbol::intern(s),
  14         kind: DocFragmentKind::SugaredDoc,
  15         indent: 0,
  16     }]
  17 }
  18
  19 #[track_caller]
  20 fn run_test(input: &str, expected: &str) {
  21     create_default_session_globals_then(|| {
  22         let mut s = create_doc_fragment(input);
  23         unindent_doc_fragments(&mut s);
  24         assert_eq!(collapse_doc_fragments(&s), expected);
  25     });
  26 }
  27
  28 #[test]
  29 fn should_unindent() {
  30     run_test("    line1\n    line2", "line1\nline2");
  31 }
  32
  33 #[test]
  34 fn should_unindent_multiple_paragraphs() {
  35     run_test("    line1\n\n    line2", "line1\n\nline2");
  36 }
  37
  38 #[test]
  39 fn should_leave_multiple_indent_levels() {
  40     // Line 2 is indented another level beyond the
  41     // base indentation and should be preserved
  42     run_test("    line1\n\n        line2", "line1\n\n    line2");
  43 }
  44
  45 #[test]
  46 fn should_ignore_first_line_indent() {
  47     run_test("line1\n    line2", "line1\n    line2");
  48 }
  49
  50 #[test]
  51 fn should_not_ignore_first_line_indent_in_a_single_line_para() {
  52     run_test("line1\n\n    line2", "line1\n\n    line2");
  53 }
  54
  55 #[test]
  56 fn should_unindent_tabs() {
  57     run_test("\tline1\n\tline2", "line1\nline2");
  58 }
  59
  60 #[test]
  61 fn should_trim_mixed_indentation() {
  62     run_test("\t    line1\n\t    line2", "line1\nline2");
  63     run_test("    \tline1\n    \tline2", "line1\nline2");
  64 }
  65
  66 #[test]
  67 fn should_not_trim() {
  68     run_test("\t    line1  \n\t    line2", "line1  \nline2");
  69     run_test("    \tline1  \n    \tline2", "line1  \nline2");
  70 }