1 files changed, 162 insertions, 0 deletions
diff --git a/components/gfx/tests/text_util.rs b/components/gfx/tests/text_util.rs
new file mode 100644
index 00000000000..7729a6f78a7
--- /dev/null
+++ b/components/gfx/tests/text_util.rs
@@ -0,0 +1,162 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+extern crate gfx;
+
+use gfx::text::util::{CompressionMode, transform_text};
+
+#[test]
+fn test_transform_compress_none() {
+    let test_strs = [
+        "  foo bar",
+        "foo bar  ",
+        "foo\n bar",
+        "foo \nbar",
+        "  foo  bar  \nbaz",
+        "foo bar baz",
+        "foobarbaz\n\n",
+    ];
+
+    let mode = CompressionMode::CompressNone;
+    for &test in test_strs.iter() {
+        let mut trimmed_str = String::new();
+        transform_text(test, mode, true, &mut trimmed_str);
+        assert_eq!(trimmed_str, test)
+    }
+}
+
+#[test]
+fn test_transform_discard_newline() {
+    let test_strs = [
+        ("  foo bar",
+         "  foo bar"),
+
+        ("foo bar  ",
+         "foo bar  "),
+
+        ("foo\n bar",
+         "foo bar"),
+
+        ("foo \nbar",
+         "foo bar"),
+
+        ("  foo  bar  \nbaz",
+         "  foo  bar  baz"),
+
+        ("foo bar baz",
+         "foo bar baz"),
+
+        ("foobarbaz\n\n",
+         "foobarbaz"),
+    ];
+
+    let mode = CompressionMode::DiscardNewline;
+    for &(test, oracle) in test_strs.iter() {
+        let mut trimmed_str = String::new();
+        transform_text(test, mode, true, &mut trimmed_str);
+        assert_eq!(trimmed_str, oracle)
+    }
+}
+
+#[test]
+fn test_transform_compress_whitespace() {
+    let test_strs = [
+        ("  foo bar",
+         "foo bar"),
+
+        ("foo bar  ",
+         "foo bar "),
+
+        ("foo\n bar",
+         "foo\n bar"),
+
+        ("foo \nbar",
+         "foo \nbar"),
+
+        ("  foo  bar  \nbaz",
+         "foo bar \nbaz"),
+
+        ("foo bar baz",
+         "foo bar baz"),
+
+        ("foobarbaz\n\n",
+         "foobarbaz\n\n"),
+    ];
+
+    let mode = CompressionMode::CompressWhitespace;
+    for &(test, oracle) in test_strs.iter() {
+        let mut trimmed_str = String::new();
+        transform_text(test, mode, true, &mut trimmed_str);
+        assert_eq!(&*trimmed_str, oracle)
+    }
+}
+
+#[test]
+fn test_transform_compress_whitespace_newline() {
+    let test_strs = vec![
+        ("  foo bar",
+         "foo bar"),
+
+        ("foo bar  ",
+         "foo bar "),
+
+        ("foo\n bar",
+         "foo bar"),
+
+        ("foo \nbar",
+         "foo bar"),
+
+        ("  foo  bar  \nbaz",
+         "foo bar baz"),
+
+        ("foo bar baz",
+         "foo bar baz"),
+
+        ("foobarbaz\n\n",
+         "foobarbaz "),
+    ];
+
+    let mode = CompressionMode::CompressWhitespaceNewline;
+    for &(test, oracle) in test_strs.iter() {
+        let mut trimmed_str = String::new();
+        transform_text(test, mode, true, &mut trimmed_str);
+        assert_eq!(&*trimmed_str, oracle)
+    }
+}
+
+#[test]
+fn test_transform_compress_whitespace_newline_no_incoming() {
+    let test_strs = [
+        ("  foo bar",
+         " foo bar"),
+
+        ("\nfoo bar",
+         " foo bar"),
+
+        ("foo bar  ",
+         "foo bar "),
+
+        ("foo\n bar",
+         "foo bar"),
+
+        ("foo \nbar",
+         "foo bar"),
+
+        ("  foo  bar  \nbaz",
+         " foo bar baz"),
+
+        ("foo bar baz",
+         "foo bar baz"),
+
+        ("foobarbaz\n\n",
+         "foobarbaz "),
+    ];
+
+    let mode = CompressionMode::CompressWhitespaceNewline;
+    for &(test, oracle) in test_strs.iter() {
+        let mut trimmed_str = String::new();
+        transform_text(test, mode, false, &mut trimmed_str);
+        assert_eq!(trimmed_str, oracle)
+    }
+}