test: add test cases for BinaryString

1 files changed, 51 insertions, 0 deletions

diff --git a/test/plum/test_binary_string.rb b/test/plum/test_binary_string.rb
new file mode 100644
index 0000000..69c9c3a
--- /dev/null
+++ b/test/plum/test_binary_string.rb
@@ -0,0 +1,51 @@
+require "test_helper"
+
+using BinaryString
+
+class BinaryStringTest < Minitest::Test
+  def test_uint8
+    assert_equal(0x67, "\x67".uint8)
+    assert_equal(0x75, "\x67\x75".uint8(1))
+  end
+
+  def test_uint16
+    assert_equal(0x78ff, "\x78\xff".uint16)
+    assert_equal(0xee55, "\x78\xee\x55".uint16(1))
+  end
+
+  def test_uint24
+    assert_equal(0x005554, "\x00\x55\x54".uint24)
+    assert_equal(0x005554, "\x2f\xaa\x00\x55\x54".uint24(2))
+  end
+
+  def test_uint32
+    assert_equal(0x00555400, "\x00\x55\x54\x00".uint32)
+    assert_equal(0x00555400, "\x2f\xaa\x00\x55\x54\x00".uint32(2))
+  end
+
+  def test_push_uint8
+    assert_equal("\x24", "".push_uint8(0x24))
+  end
+
+  def test_push_uint16
+    assert_equal("\x24\x11", "".push_uint16(0x2411))
+  end
+
+  def test_push_uint24
+    assert_equal("\x11\x11\x24", "".push_uint24(0x111124))
+  end
+
+  def test_push_uint32
+    assert_equal("\x10\x00\x00\x24", "".push_uint32(0x10000024))
+  end
+
+  def test_push
+    assert_equal("adh", "ad".push("h"))
+  end
+
+  def test_byteshift
+    sushi = "\u{1f363}".encode(Encoding::UTF_8)
+    assert_equal("\xf0".b, sushi.byteshift(1).b)
+    assert_equal("\x9f\x8d\xa3".b, sushi.b)
+  end
+end