/
_line_reader_tests.pony
154 lines (138 loc) · 4.75 KB
/
_line_reader_tests.pony
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// Q1:
// should read_line return the remaining bytes when has_line
// has returned false? - no, because then you can't distinguish
// between a partially provided line and end-of-stream
// hence providing read_remaining.
use "ponytest"
use "../text-reader"
primitive _TestLineReader is TestWrapped
fun all_tests(): Array[UnitTest iso] =>
[as UnitTest iso:
object iso is UnitTest
fun name():String => "line-reader/initial"
fun apply(h: TestHelper) =>
let undertest = LineReader
h.assert_eq[Bool](false, undertest.has_line())
h.assert_eq[USize](0, undertest.available())
end
object iso is UnitTest
fun name():String => "line-reader/apply-updates"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply([0x20;0x20;0xd;0xa])
h.assert_eq[USize](4, undertest.available())
h.assert_eq[USize](1, undertest.line_count())
h.assert_eq[Bool](true, undertest.has_line())
end
object iso is UnitTest
fun name():String => "line-reader/read-line-decrements"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply([0x20;0x20;0xd;0xa])
let line: String = undertest.read_line()
h.assert_eq[USize](0, undertest.available())
h.assert_eq[String](" ", line)
h.assert_eq[Bool](false, undertest.has_line())
end
object iso is UnitTest
fun name():String => "line-reader/trailing"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply([0x20;0xd;0xa;0x65])
let line: String = undertest.read_line()
h.assert_eq[USize](1, undertest.available())
h.assert_eq[String](" ", line)
h.assert_eq[Bool](false, undertest.has_line())
// let line': String = undertest.read_remaining()
// h.assert_eq[String]("A", line')
end
object iso is UnitTest
fun name():String => "line-reader/split-separator"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply([0x20;0xd])
undertest.apply([0xa;0x65])
let line: String = undertest.read_line()
h.assert_eq[String](" ", line)
// let line': String = undertest.read_remaining()
// h.assert_eq[String]("A", line')
end
object iso is UnitTest
fun name():String => "line-reader/one-byte-at-a-time"
fun apply(h: TestHelper) =>
let undertest = LineReader
for c in "One at a time.\r\n".array().values() do
undertest.apply([c])
end
let line: String = undertest.read_line()
h.assert_eq[String]("One at a time.", line)
end
object iso is UnitTest
fun name():String => "line-reader/multiple-lines"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply("multiple\r\nlines\r\nin\r\none\r\ninput\r\n".array())
let expected = ["multiple"; "lines"; "in"; "one"; "input"]
for (i, e) in expected.pairs() do
h.assert_eq[String](e, undertest.read_line(), "index: "+i.string()+" "+e)
end
end
object iso is UnitTest
fun name():String => "line-reader/multiple-inputs"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply("multiple ".array())
undertest.apply("inputs ".array())
undertest.apply("on ".array())
undertest.apply("one ".array())
undertest.apply("line\r\n".array())
let line: String = undertest.read_line()
h.assert_eq[String]("multiple inputs on one line", line)
end
object iso is UnitTest
fun name():String => "line-reader/remaining-bytes"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply("lines\r\n".array())
undertest.apply("with trailing bytes".array())
h.assert_eq[String]("lines", undertest.read_line())
let remaining: Array[ByteSeq] val = undertest.remaining()
h.assert_eq[USize](1, remaining.size())
try
h.assert_array_eq[U8]("with trailing bytes".array(), remaining(0)?)
end
end
object iso is UnitTest
fun name():String => "line-reader/partial-remaining-bytes"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply("lines\r\nwith trailing bytes".array())
h.assert_eq[String]("lines", undertest.read_line())
let remaining: Array[ByteSeq] val = undertest.remaining()
h.assert_eq[USize](1, remaining.size())
try
h.assert_array_eq[U8]("with trailing bytes".array(), remaining(0)?)
end
end
object iso is UnitTest
fun name():String => "line-reader/complete-example"
fun apply(h: TestHelper) =>
let undertest = LineReader
undertest.apply("this is an\r\nexample ".array())
undertest.apply("that\r\n".array())
undertest.apply("should exibit ".array())
undertest.apply("multiple\r\nedge\r".array())
undertest.apply("\nca".array())
undertest.apply("s".array())
undertest.apply("e".array())
undertest.apply("".array())
undertest.apply("s".array())
undertest.apply("\r".array())
undertest.apply("\n".array())
let expected = ["this is an"; "example that"; "should exibit multiple"; "edge"; "cases"]
for (i, e) in expected.pairs() do
h.assert_eq[String](e, undertest.read_line(), "index: "+i.string()+" "+e)
end
end
]
// vi: sw=4 sts=4 ts=4 noet