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Test CharSequence extension methods both for String and StringBuilder

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This commit is contained in:
Ilya Gorbunov
2015-10-27 06:30:39 +03:00
parent 64338e896d
commit d021a324aa
2 changed files with 248 additions and 170 deletions
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libraries/stdlib/test/text/StringJVMTest.kt
+99 -90
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@@ -6,18 +6,6 @@ import kotlin.test.*
import org.junit.Test as test
class StringJVMTest {
@test fun stringBuilderIterator() {
var sum = 0
val sb = StringBuilder()
for(c in "239")
sb.append(c)
println(sb)
for(c in sb)
sum += (c.toInt() - '0'.toInt())
assertTrue(sum == 14)
}
@test fun orEmpty() {
val s: String? = "hey"
@@ -51,14 +39,12 @@ class StringJVMTest {
assertEquals(77.toLong(), "77".toLong())
}
@test fun count() {
val text = "hello there\tfoo\nbar"
@test fun count() = withOneCharSequenceArg("hello there\tfoo\nbar") { text ->
val whitespaceCount = text.count { it.isWhitespace() }
assertEquals(3, whitespaceCount)
}
@test fun testSplitByChar() {
val s = "ab\n[|^$&\\]^cd"
@test fun testSplitByChar() = withOneCharSequenceArg("ab\n[|^$&\\]^cd") { s ->
var list = s.split('b');
assertEquals(2, list.size())
assertEquals("a", list[0])
@@ -68,11 +54,10 @@ class StringJVMTest {
assertEquals("cd", list[2])
list = s.split('.')
assertEquals(1, list.size())
assertEquals(s, list[0])
assertEquals(s.toString(), list[0])
}
@test fun testSplitByPattern() {
val s = "ab1cd2def3"
@test fun testSplitByPattern() = withOneCharSequenceArg("ab1cd2def3") { s ->
val isDigit = "\\d".toRegex()
assertEquals(listOf("ab", "cd", "def", ""), s.split(isDigit))
assertEquals(listOf("ab", "cd", "def3"), s.split(isDigit, 3))
@@ -85,7 +70,9 @@ class StringJVMTest {
}
}
@test fun repeat() {
@test fun repeat() = withOneCharSequenceArg { arg1 ->
fun String.repeat(n: Int): String = arg1(this).repeat(n)
assertFails { "foo".repeat(-1) }
assertEquals("", "foo".repeat(0))
assertEquals("foo", "foo".repeat(1))
@@ -93,25 +80,28 @@ class StringJVMTest {
assertEquals("foofoofoo", "foo".repeat(3))
}
@test fun filter() {
assertEquals("acdca", "abcdcba".filter { !it.equals('b') })
assertEquals("1234", "a1b2c3d4".filter { it.isDigit() })
@test fun filter() = withOneCharSequenceArg { arg1 ->
assertEquals("acdca", arg1("abcdcba").filter { !it.equals('b') })
assertEquals("1234", arg1("a1b2c3d4").filter { it.isDigit() })
}
@test fun filterNot() {
assertEquals("acdca", "abcdcba".filterNot { it.equals('b') })
assertEquals("abcd", "a1b2c3d4".filterNot { it.isDigit() })
@test fun filterNot() = withOneCharSequenceArg { arg1 ->
assertEquals("acdca", arg1("abcdcba").filterNot { it.equals('b') })
assertEquals("abcd", arg1("a1b2c3d4").filterNot { it.isDigit() })
}
@test fun forEach() {
val data = "abcd1234"
@test fun forEach() = withOneCharSequenceArg("abcd1234") { data ->
var count = 0
data.forEach{ count++ }
assertEquals(data.length(), count)
val sb = StringBuilder()
data.forEach {
count++
sb.append(it)
}
assertEquals(data.length, count)
assertEquals(data.toString(), sb.toString())
}
@test fun all() {
val data = "AbCd"
@test fun all() = withOneCharSequenceArg("AbCd") { data ->
assertTrue {
data.all { it.isJavaIdentifierPart() }
}
@@ -120,8 +110,7 @@ class StringJVMTest {
}
}
@test fun any() {
val data = "a1bc"
@test fun any() = withOneCharSequenceArg("a1bc") { data ->
assertTrue {
data.any() { it.isDigit() }
}
@@ -137,114 +126,109 @@ class StringJVMTest {
assertEquals("<k^o^t^l^i^n>", sb.toString())
}
@test fun find() {
val data = "a1b2c3"
@test fun find() = withOneCharSequenceArg("a1b2c3") { data ->
assertEquals('1', data.first { it.isDigit() })
assertNull(data.firstOrNull { it.isUpperCase() })
}
@test fun findNot() {
val data = "1a2b3c"
@test fun findNot() = withOneCharSequenceArg("1a2b3c") { data ->
assertEquals('a', data.filterNot { it.isDigit() }.firstOrNull())
assertNull(data.filterNot { it.isJavaIdentifierPart() }.firstOrNull())
}
@test fun partition() {
val data = "a1b2c3"
@test fun partition() = withOneCharSequenceArg("a1b2c3") { data ->
val pair = data.partition { it.isDigit() }
assertEquals("123", pair.first, "pair.first")
assertEquals("abc", pair.second, "pair.second")
}
@test fun map() {
assertEquals(listOf('a', 'b', 'c'), "abc".map { it })
@test fun map() = withOneCharSequenceArg { arg1 ->
assertEquals(listOf('a', 'b', 'c'), arg1("abc").map { it })
assertEquals(listOf(true, false, true), "AbC".map { it.isUpperCase() })
assertEquals(listOf(true, false, true), arg1("AbC").map { it.isUpperCase() })
assertEquals(listOf<Boolean>(), "".map { it.isUpperCase() })
assertEquals(listOf<Boolean>(), arg1("").map { it.isUpperCase() })
assertEquals(listOf(97, 98, 99), "abc".map { it.toInt() })
assertEquals(listOf(97, 98, 99), arg1("abc").map { it.toInt() })
}
@test fun mapTo() {
@test fun mapTo() = withOneCharSequenceArg { arg1 ->
val result1 = arrayListOf<Char>()
val return1 = "abc".mapTo(result1, { it })
val return1 = arg1("abc").mapTo(result1, { it })
assertEquals(result1, return1)
assertEquals(arrayListOf('a', 'b', 'c'), result1)
val result2 = arrayListOf<Boolean>()
val return2 = "AbC".mapTo(result2, { it.isUpperCase() })
val return2 = arg1("AbC").mapTo(result2, { it.isUpperCase() })
assertEquals(result2, return2)
assertEquals(arrayListOf(true, false, true), result2)
val result3 = arrayListOf<Boolean>()
val return3 = "".mapTo(result3, { it.isUpperCase() })
val return3 = arg1("").mapTo(result3, { it.isUpperCase() })
assertEquals(result3, return3)
assertEquals(arrayListOf<Boolean>(), result3)
val result4 = arrayListOf<Int>()
val return4 = "abc".mapTo(result4, { it.toInt() })
val return4 = arg1("abc").mapTo(result4, { it.toInt() })
assertEquals(result4, return4)
assertEquals(arrayListOf(97, 98, 99), result4)
}
@test fun flatMap() {
val data = "abcd"
val result = data.flatMap { listOf(it) }
assertEquals(data.length(), result.count())
assertEquals(data.toCharList(), result)
@test fun flatMap() = withOneCharSequenceArg("abcd") { data ->
val result = data.flatMap { ('a'..it) + ' ' }
assertEquals("a ab abc abcd ".toCharList(), result)
}
@test fun fold() {
@test fun fold() = withOneCharSequenceArg { arg1 ->
// calculate number of digits in the string
val data = "a1b2c3def"
val data = arg1("a1b2c3def")
val result = data.fold(0, { digits, c -> if(c.isDigit()) digits + 1 else digits } )
assertEquals(3, result)
//simulate all method
assertEquals(true, "ABCD".fold(true, { r, c -> r && c.isUpperCase() }))
assertEquals(true, arg1("ABCD").fold(true, { r, c -> r && c.isUpperCase() }))
//get string back
assertEquals(data, data.fold("", { s, c -> s + c }))
assertEquals(data.toString(), data.fold("", { s, c -> s + c }))
}
@test fun foldRight() {
@test fun foldRight() = withOneCharSequenceArg { arg1 ->
// calculate number of digits in the string
val data = "a1b2c3def"
val data = arg1("a1b2c3def")
val result = data.foldRight(0, { c, digits -> if(c.isDigit()) digits + 1 else digits })
assertEquals(3, result)
//simulate all method
assertEquals(true, "ABCD".foldRight(true, { c, r -> r && c.isUpperCase() }))
assertEquals(true, arg1("ABCD").foldRight(true, { c, r -> r && c.isUpperCase() }))
//get string back
assertEquals(data, data.foldRight("", { s, c -> "" + s + c }))
assertEquals(data.toString(), data.foldRight("", { s, c -> "" + s + c }))
}
@test fun reduce() {
@test fun reduce() = withOneCharSequenceArg { arg1 ->
// get the smallest character(by char value)
assertEquals('a', "bacfd".reduce { v, c -> if (v > c) c else v })
assertEquals('a', arg1("bacfd").reduce { v, c -> if (v > c) c else v })
assertFailsWith(UnsupportedOperationException::class) {
"".reduce { a, b -> '\n' }
arg1("").reduce { a, b -> '\n' }
}
}
@test fun reduceRight() {
@test fun reduceRight() = withOneCharSequenceArg { arg1 ->
// get the smallest character(by char value)
assertEquals('a', "bacfd".reduceRight { c, v -> if (v > c) c else v })
assertEquals('a', arg1("bacfd").reduceRight { c, v -> if (v > c) c else v })
assertFailsWith(UnsupportedOperationException::class) {
"".reduceRight { a, b -> '\n' }
arg1("").reduceRight { a, b -> '\n' }
}
}
@test fun groupBy() {
@test fun groupBy() = withOneCharSequenceArg("abAbaABcD") { data ->
// group characters by their case
val data = "abAbaABcD"
val result = data.groupBy { it.isLowerCase() }
assertEquals(2, result.size())
assertEquals(listOf('a','b','b','a','c'), result.get(true))
assertEquals(2, result.size)
assertEquals(listOf('a','b','b','a','c'), result[true])
assertEquals(listOf('A','A','B','D'), result[false])
}
@test fun joinToString() {
@@ -271,6 +255,8 @@ class StringJVMTest {
assertEquals("[v-e-r-y-l-o-n-g-s-t-r-oops]", result2)
}
@test fun dropWhile() {
val data = "ab1cd2"
assertEquals("1cd2", data.dropWhile { it.isJavaIdentifierStart() })
@@ -278,6 +264,13 @@ class StringJVMTest {
assertEquals("ab1cd2", data.dropWhile { false })
}
@test fun dropWhileCharSequence() = withOneCharSequenceArg("ab1cd2") { data ->
assertContentEquals("1cd2", data.dropWhile { it.isJavaIdentifierStart() })
assertContentEquals("", data.dropWhile { true })
assertContentEquals("ab1cd2", data.dropWhile { false })
}
@test fun drop() {
val data = "abcd1234"
assertEquals("d1234", data.drop(3))
@@ -287,6 +280,14 @@ class StringJVMTest {
assertEquals("", data.drop(data.length() + 5))
}
@test fun dropCharSequence() = withOneCharSequenceArg("abcd1234") { data ->
assertContentEquals("d1234", data.drop(3))
assertFails {
data.drop(-2)
}
assertContentEquals("", data.drop(data.length() + 5))
}
@test fun takeWhile() {
val data = "ab1cd2"
assertEquals("ab", data.takeWhile { it.isJavaIdentifierStart() })
@@ -294,6 +295,12 @@ class StringJVMTest {
assertEquals("ab1cd2", data.takeWhile { true })
}
@test fun takeWhileCharSequence() = withOneCharSequenceArg("ab1cd2") { data ->
assertContentEquals("ab", data.takeWhile { it.isJavaIdentifierStart() })
assertContentEquals("", data.takeWhile { false })
assertContentEquals("ab1cd2", data.takeWhile { true })
}
@test fun take() {
val data = "abcd1234"
assertEquals("abc", data.take(3))
@@ -303,6 +310,14 @@ class StringJVMTest {
assertEquals(data, data.take(data.length() + 42))
}
@test fun takeCharSequence() = withOneCharSequenceArg("abcd1234") { data ->
assertEquals("abc", data.take(3))
assertFails {
data.take(-7)
}
assertContentEquals(data.toString(), data.take(data.length + 42))
}
@test fun formatter() {
assertEquals("12", "%d%d".format(1, 2))
@@ -318,32 +333,28 @@ class StringJVMTest {
assertEquals(String(s.toByteArray()), String(s.toByteArray(defaultCharset.name())))
}
@test fun testReplaceAllClosure() {
val s = "test123zzz"
@test fun testReplaceAllClosure() = withOneCharSequenceArg("test123zzz") { s ->
val result = s.replace("\\d+".toRegex()) { mr ->
"[" + mr.value + "]"
}
assertEquals("test[123]zzz", result)
}
@test fun testReplaceAllClosureAtStart() {
val s = "123zzz"
@test fun testReplaceAllClosureAtStart() = withOneCharSequenceArg("123zzz") { s ->
val result = s.replace("\\d+".toRegex()) { mr ->
"[" + mr.value + "]"
}
assertEquals("[123]zzz", result)
}
@test fun testReplaceAllClosureAtEnd() {
val s = "test123"
@test fun testReplaceAllClosureAtEnd() = withOneCharSequenceArg("test123") { s ->
val result = s.replace("\\d+".toRegex()) { mr ->
"[" + mr.value + "]"
}
assertEquals("test[123]", result)
}
@test fun testReplaceAllClosureEmpty() {
val s = ""
@test fun testReplaceAllClosureEmpty() = withOneCharSequenceArg("") { s ->
val result = s.replace("\\d+".toRegex()) { mr ->
"x"
}
@@ -351,23 +362,21 @@ class StringJVMTest {
}
@test fun slice() {
@test fun slice() = withOneCharSequenceArg { arg1 ->
val iter = listOf(4, 3, 0, 1)
val builder = StringBuilder()
builder.append("ABCD")
builder.append("abcd")
val data = arg1("ABCDabcd")
// ABCDabcd
// 01234567
assertEquals("BCDabc", builder.slice(1..6).toString())
assertEquals("baD", builder.slice(5 downTo 3).toString())
assertEquals("aDAB", builder.slice(iter).toString())
assertEquals("BCDabc", data.slice(1..6).toString())
assertEquals("baD", data.slice(5 downTo 3).toString())
assertEquals("aDAB", data.slice(iter).toString())
assertFails {
"abc".slice(listOf(1,4))
arg1("abc").slice(listOf(1,4))
}
assertFails {
builder.slice(listOf(10))
data.slice(listOf(10))
}
}