+
+class TestCsvReader
+ super TestSuite
+
+ # The custom CSV format used in the tests.
+ private var custom_format = new CsvFormat('/', ':', "#")
+
+ # Expect to read `expected`.
+ #
+ # Parameters:
+ #
+ # * `skip_empty`: value of the `skip_empty` option.
+ # * `modal_escaping`: value of the `modal_escaping` option.
+ # * `input_rfc4180`: input in the RFC 4180 format.
+ # * `input_custom`: input in the custom CSV format.
+ # * `expected`: expected resulting table.
+ private fun expect(skip_empty: Bool,
+ input_rfc4180: String,
+ input_custom: String,
+ expected: SequenceRead[SequenceRead[String]]) do
+ var istream: Reader
+ var reader: CsvReader
+
+ istream = new StringReader(input_rfc4180)
+ reader = new CsvReader(istream)
+ reader.skip_empty = skip_empty
+ assert_table_equals("RFC 4180", reader, expected.iterator)
+
+ istream = new StringReader(input_custom)
+ reader = new CsvReader.with_format(istream, custom_format)
+ reader.skip_empty = skip_empty
+ assert_table_equals("{custom_format.delimiter} " +
+ "{custom_format.separator} " +
+ "{custom_format.eol.escape_to_nit}", reader, expected.iterator)
+ end
+
+ # Check if tables are equal.
+ private fun assert_table_equals(format: String,
+ actual: Iterator[SequenceRead[String]],
+ expected: Iterator[SequenceRead[String]]) do
+ var i = 0
+
+ for actual_row in actual do
+ assert expected.is_ok else fail(format,"Too many rows.")
+ var expected_row = expected.item
+ assert_row_equals(format, i, actual_row, expected_row)
+ expected.next
+ i += 1
+ end
+ assert not expected.is_ok else fail(format, "Not enough rows.")
+ expected.finish
+ end
+
+ # Check if rows are equal.
+ private fun assert_row_equals(format: String,
+ row_index: Int,
+ actual: SequenceRead[String],
+ expected: SequenceRead[String]) do
+ assert actual == expected else
+ fail(format, """
+At row {{{row_index}}}.
+Expecting: {{{expected.join("|")}}}
+Got: {{{actual.join("|")}}}""")
+ end
+ end
+
+ # Output an error message with an indication of the format used.
+ private fun fail(format: Text, message: Text) do
+ sys.stderr.write "\nFormat: {format}\n"
+ sys.stderr.write message
+ sys.stderr.write "\n"
+ end
+
+ fun test_empty do expect(false, "", "", new Array[Array[String]])
+
+ fun test_empty_eol do expect(false, "\r\n", "#", [[""]])
+
+ fun test_empty_skip do expect(true, "", "", new Array[Array[String]])
+
+ fun test_empty_skip1 do expect(true, "\r\n", "#", new Array[Array[String]])
+
+ fun test_empty_skip2 do expect(true, "\r\n\r\n", "##", new Array[Array[String]])
+
+ fun test_escaped do expect(false, "\"foo/\"\"\r\n,\"\r\n",
+ "/foo//\"\r\n,/#", [["foo/\"\r\n,"]])
+
+ fun test_unescaped do expect(false, "foo bar\r\n",
+ "foo bar#", [["foo bar"]])
+
+ fun test_escaped_no_eol do expect(false, "\"foo/\"\"\r\n,\"",
+ "/foo//\"\r\n,/", [["foo/\"\r\n,"]])
+
+ fun test_unescaped_no_eol do expect(false, "foo bar",
+ "foo bar", [["foo bar"]])
+
+ fun test_multiple_cells do expect(false, "\"1\",,\"/\"\r\n",
+ "/1/::////#", [["1", "", "/"]])
+
+ fun test_multiple_cells_unescaped do expect(false, "1,,/\r\n",
+ "1::////#", [["1", "", "/"]])
+
+ fun test_modal_escaping do expect(false, """a"b""/c","d"e""",
+ """/ab"///c:d/e/""", [["""ab"/c""", "de"]])
+
+ fun test_skip_start do expect(true, "\r\n1,,/\r\n",
+ "#1::////#", [["1", "", "/"]])
+
+ fun test_dont_skip_empty_delimited do expect(true, "\"\"\r\n",
+ "//#", [[""]])
+
+ fun test_dont_skip_multiple_empty_cells do expect(true, ",\r\n",
+ ":#", [["",""]])
+
+ fun test_mutiple_rows do expect(false, "\"a\r\nb#\",c\r\nd,\r\n,e\r\n",
+ "/a\r\nb#/:c#d:#:e#", [["a\r\nb#", "c"], ["d", ""], ["", "e"]])
+end