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-rw-r--r--activesupport/test/core_ext/string_ext_test.rb68
1 files changed, 67 insertions, 1 deletions
diff --git a/activesupport/test/core_ext/string_ext_test.rb b/activesupport/test/core_ext/string_ext_test.rb
index 472190277e..ccaa5dc786 100644
--- a/activesupport/test/core_ext/string_ext_test.rb
+++ b/activesupport/test/core_ext/string_ext_test.rb
@@ -9,9 +9,9 @@ require "constantize_test_cases"
require "active_support/inflector"
require "active_support/core_ext/string"
require "active_support/time"
-require "active_support/core_ext/string/strip"
require "active_support/core_ext/string/output_safety"
require "active_support/core_ext/string/indent"
+require "active_support/core_ext/string/strip"
require "time_zone_test_helpers"
require "yaml"
@@ -24,6 +24,10 @@ class StringInflectionsTest < ActiveSupport::TestCase
assert_equal "", "".strip_heredoc
end
+ def test_strip_heredoc_on_a_frozen_string
+ assert "".freeze.strip_heredoc.frozen?
+ end
+
def test_strip_heredoc_on_a_string_with_no_lines
assert_equal "x", "x".strip_heredoc
assert_equal "x", " x".strip_heredoc
@@ -281,6 +285,68 @@ class StringInflectionsTest < ActiveSupport::TestCase
assert_equal "Hello Big[...]", "Hello Big World!".truncate(15, omission: "[...]", separator: /\s/)
end
+ def test_truncate_bytes
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16)
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16, omission: nil)
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16, omission: " ")
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16, omission: "🖖")
+
+ assert_equal "👍👍👍…", "👍👍👍👍".truncate_bytes(15)
+ assert_equal "👍👍👍", "👍👍👍👍".truncate_bytes(15, omission: nil)
+ assert_equal "👍👍👍 ", "👍👍👍👍".truncate_bytes(15, omission: " ")
+ assert_equal "👍👍🖖", "👍👍👍👍".truncate_bytes(15, omission: "🖖")
+
+ assert_equal "…", "👍👍👍👍".truncate_bytes(5)
+ assert_equal "👍", "👍👍👍👍".truncate_bytes(5, omission: nil)
+ assert_equal "👍 ", "👍👍👍👍".truncate_bytes(5, omission: " ")
+ assert_equal "🖖", "👍👍👍👍".truncate_bytes(5, omission: "🖖")
+
+ assert_equal "…", "👍👍👍👍".truncate_bytes(4)
+ assert_equal "👍", "👍👍👍👍".truncate_bytes(4, omission: nil)
+ assert_equal " ", "👍👍👍👍".truncate_bytes(4, omission: " ")
+ assert_equal "🖖", "👍👍👍👍".truncate_bytes(4, omission: "🖖")
+
+ assert_raise ArgumentError do
+ "👍👍👍👍".truncate_bytes(3, omission: "🖖")
+ end
+ end
+
+ def test_truncate_bytes_preserves_codepoints
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16)
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16, omission: nil)
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16, omission: " ")
+ assert_equal "👍👍👍👍", "👍👍👍👍".truncate_bytes(16, omission: "🖖")
+
+ assert_equal "👍👍👍…", "👍👍👍👍".truncate_bytes(15)
+ assert_equal "👍👍👍", "👍👍👍👍".truncate_bytes(15, omission: nil)
+ assert_equal "👍👍👍 ", "👍👍👍👍".truncate_bytes(15, omission: " ")
+ assert_equal "👍👍🖖", "👍👍👍👍".truncate_bytes(15, omission: "🖖")
+
+ assert_equal "…", "👍👍👍👍".truncate_bytes(5)
+ assert_equal "👍", "👍👍👍👍".truncate_bytes(5, omission: nil)
+ assert_equal "👍 ", "👍👍👍👍".truncate_bytes(5, omission: " ")
+ assert_equal "🖖", "👍👍👍👍".truncate_bytes(5, omission: "🖖")
+
+ assert_equal "…", "👍👍👍👍".truncate_bytes(4)
+ assert_equal "👍", "👍👍👍👍".truncate_bytes(4, omission: nil)
+ assert_equal " ", "👍👍👍👍".truncate_bytes(4, omission: " ")
+ assert_equal "🖖", "👍👍👍👍".truncate_bytes(4, omission: "🖖")
+
+ assert_raise ArgumentError do
+ "👍👍👍👍".truncate_bytes(3, omission: "🖖")
+ end
+ end
+
+ def test_truncates_bytes_preserves_grapheme_clusters
+ assert_equal "a ", "a ❤️ b".truncate_bytes(2, omission: nil)
+ assert_equal "a ", "a ❤️ b".truncate_bytes(3, omission: nil)
+ assert_equal "a ", "a ❤️ b".truncate_bytes(7, omission: nil)
+ assert_equal "a ❤️", "a ❤️ b".truncate_bytes(8, omission: nil)
+
+ assert_equal "a ", "a 👩‍❤️‍👩".truncate_bytes(13, omission: nil)
+ assert_equal "", "👩‍❤️‍👩".truncate_bytes(13, omission: nil)
+ end
+
def test_truncate_words
assert_equal "Hello Big World!", "Hello Big World!".truncate_words(3)
assert_equal "Hello Big...", "Hello Big World!".truncate_words(2)