diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/gleam/string_test.gleam | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/test/gleam/string_test.gleam b/test/gleam/string_test.gleam index 4eddb9c..14e6476 100644 --- a/test/gleam/string_test.gleam +++ b/test/gleam/string_test.gleam @@ -702,17 +702,43 @@ pub fn from_utf_codepoints_test() { } pub fn utf_codepoint_test() { - string.utf_codepoint(1_114_444) + // Less than the lower bound on valid codepoints + string.utf_codepoint(-1) |> should.be_error - string.utf_codepoint(65_534) + // The lower bound on valid codepoints + string.utf_codepoint(0) + |> should.be_ok + + // The upper bound for valid code points + string.utf_codepoint(1_114_111) + |> should.be_ok + + // Greater than the upper bound on valid codepoints + string.utf_codepoint(1_114_112) |> should.be_error + // Non-characters U+FFFE and U+FFFF are valid codepoints. See (#778). + string.utf_codepoint(65_534) + |> should.be_ok + string.utf_codepoint(65_535) + |> should.be_ok + + // One less than the lowest "High-surrogate code point" + string.utf_codepoint(55_295) + |> should.be_ok + + // Lowest value of the "High-surrogate code point" (U+D800 to U+DBFF) string.utf_codepoint(55_296) |> should.be_error - string.utf_codepoint(-1) + // Highest value of the "Low-surrogate code point" (U+DC00 to U+DFFF) + string.utf_codepoint(57_343) |> should.be_error + + // One greater than the highest "Low-surrogate code point" + string.utf_codepoint(57_344) + |> should.be_ok } pub fn bit_array_utf_codepoint_test() { |