Clean up the scanner type test
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8a970b6797
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d376c30d7a
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@ -1,12 +1,11 @@
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package scanner
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import error.Severity.ERROR
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import org.junit.Assert.assertEquals
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import org.junit.Assert.assertNotNull
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import org.junit.Assert.assertTrue
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import org.junit.Before
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import org.junit.Test
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import org.assertj.core.api.Assertions.assertThat
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import org.junit.jupiter.api.Assertions.assertThrows
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import org.junit.jupiter.api.BeforeEach
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import org.junit.jupiter.api.Test
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import scanner.LispScanner.UnterminatedStringException
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import testutil.TestUtilities.assertIsErrorWithMessage
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import testutil.TestUtilities.createInputStreamFromString
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import token.AtSign
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import token.Backquote
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@ -23,156 +22,127 @@ import token.TokenFactory.BadCharacterException
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class LispScannerTypeTest {
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private var expectedTypes: MutableList<Class<out Token>>? = null
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private val expectedTypes = mutableListOf<Class<out Token>>()
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private fun assertTokenTypesMatch(input: String) {
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val stringInputStream = createInputStreamFromString(input)
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val lispScanner = LispScanner(stringInputStream, "testFile")
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for (type in expectedTypes!!)
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assertTrue(type.isInstance(lispScanner.nextToken))
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for (type in expectedTypes)
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assertThat(type.isInstance(lispScanner.nextToken)).isTrue()
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assertTrue(lispScanner.nextToken is Eof)
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assertThat(lispScanner.nextToken is Eof).isTrue()
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}
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@Before
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@BeforeEach
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fun setUp() {
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expectedTypes = mutableListOf()
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expectedTypes.clear()
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}
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@Test
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fun givenEmptyFile_ReturnsCorrectTypes() {
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fun `types for an empty file`() {
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val input = ""
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assertTokenTypesMatch(input)
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}
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@Test(expected = BadCharacterException::class)
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fun givenBadCharacter_ThrowsException() {
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@Test
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fun `bad character is not accepted`() {
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val input = "["
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assertTokenTypesMatch(input)
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assertThrows(BadCharacterException::class.java) { assertTokenTypesMatch(input) }
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}
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@Test
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fun givenBadCharacter_ExceptionContainsCorrectSeverity() {
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fun `BadCharacterException is cool`() {
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val input = "abc\ndef["
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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try {
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assertTokenTypesMatch(input)
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} catch (e: BadCharacterException) {
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assertEquals(ERROR, e.severity)
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assertIsErrorWithMessage(e)
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}
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}
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@Test
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fun givenBadCharacter_ExceptionContainsMessage() {
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val input = "abc\ndef["
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(Identifier::class.java)
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try {
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assertTokenTypesMatch(input)
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} catch (e: BadCharacterException) {
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val message = e.message
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assertNotNull(message)
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assertTrue(message.length > 0)
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}
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}
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@Test
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fun givenNil_ReturnsCorrectTypes() {
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fun `types for nil`() {
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val input = "()"
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expectedTypes!!.add(LeftParenthesis::class.java)
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expectedTypes!!.add(RightParenthesis::class.java)
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expectedTypes.add(LeftParenthesis::class.java)
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expectedTypes.add(RightParenthesis::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenListOfNumbers_ReturnsCorrectTypes() {
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fun `types for a list of numbers`() {
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val input = "(1 2)"
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expectedTypes!!.add(LeftParenthesis::class.java)
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expectedTypes!!.add(Number::class.java)
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expectedTypes!!.add(Number::class.java)
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expectedTypes!!.add(RightParenthesis::class.java)
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expectedTypes.add(LeftParenthesis::class.java)
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expectedTypes.add(Number::class.java)
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expectedTypes.add(Number::class.java)
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expectedTypes.add(RightParenthesis::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenString_ReturnsCorrectTypes() {
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fun `types for a string`() {
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val input = "\"string\""
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expectedTypes!!.add(QuotedString::class.java)
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expectedTypes.add(QuotedString::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenStringWithEscapedDoubleQuote_ReturnsCorrectTypes() {
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fun `types for a string with escaped double quote`() {
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val input = "\"string \n hi \\\" bye\""
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expectedTypes!!.add(QuotedString::class.java)
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expectedTypes.add(QuotedString::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenStringWithEscapedDoubleQuoteAndComment_ReturnsCorrectTypes() {
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fun `types for a string with an escaped double quote and comment`() {
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val input = "\"string \n hi \\\" ; bye\""
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expectedTypes!!.add(QuotedString::class.java)
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assertTokenTypesMatch(input)
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}
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@Test(expected = UnterminatedStringException::class)
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fun givenUnterminatedString_ThrowsException() {
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val input = "\"oh no!"
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expectedTypes!!.add(QuotedString::class.java)
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expectedTypes.add(QuotedString::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenUnterminatedString_ExceptionHasCorrectSeverity() {
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fun `types for an unterminated string`() {
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val input = "\"oh no!"
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expectedTypes!!.add(QuotedString::class.java)
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expectedTypes.add(QuotedString::class.java)
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assertThrows(UnterminatedStringException::class.java) { assertTokenTypesMatch(input) }
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}
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@Test
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fun `UnterminatedStringException is cool`() {
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val input = "\"oh no!"
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expectedTypes.add(QuotedString::class.java)
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try {
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assertTokenTypesMatch(input)
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} catch (e: LispScanner.UnterminatedStringException) {
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assertEquals(ERROR, e.severity)
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} catch (e: UnterminatedStringException) {
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assertIsErrorWithMessage(e)
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}
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}
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@Test
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fun givenUnterminatedString_ExceptionContainsMessage() {
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val input = "\"oh no!"
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expectedTypes!!.add(QuotedString::class.java)
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try {
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assertTokenTypesMatch(input)
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} catch (e: LispScanner.UnterminatedStringException) {
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val message = e.message
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assertNotNull(message)
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assertTrue(message.length > 0)
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}
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}
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@Test
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fun givenIdentifier_ReturnsCorrectTypes() {
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fun `types for an identifier`() {
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val input = "abcdefgHIJKLMNOP1234"
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenPrefixedIdentifiers_ReturnsCorrectTypes() {
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fun `types for prefixed identifiers`() {
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val input = "-a +b"
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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assertTokenTypesMatch(input)
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}
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@ -180,123 +150,123 @@ class LispScannerTypeTest {
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@Test
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fun givenSingleDigitNumber_ReturnsCorrectTypes() {
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val input = "1"
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expectedTypes!!.add(Number::class.java)
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expectedTypes.add(Number::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenPrefixedNegativeNumber_ReturnsCorrectTypes() {
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fun `types for a prefixed negative number`() {
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val input = "-1"
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expectedTypes!!.add(Number::class.java)
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expectedTypes.add(Number::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenPrefixedNumber_ReturnsCorrectTypes() {
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fun `types for a prefixed positive number`() {
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val input = "+1"
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expectedTypes!!.add(Number::class.java)
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expectedTypes.add(Number::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenPrefixedNegativeNumberAndIdentifier_ReturnsCorrectTypes() {
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fun `types for a prefixed negative number and an identifier`() {
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val input = "-1apple"
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expectedTypes!!.add(Number::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes.add(Number::class.java)
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expectedTypes.add(Identifier::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenPrefixedNumberAndIdentifier_ReturnsCorrectTypes() {
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fun `types for a prefixed positive number and an identifier`() {
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val input = "+1apple"
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expectedTypes!!.add(Number::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes.add(Number::class.java)
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expectedTypes.add(Identifier::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenPrefixedNegativeNumberAndString_ReturnsCorrectTypes() {
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fun `types for a prefixed negative number and a string`() {
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val input = "-1\"apple\""
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expectedTypes!!.add(Number::class.java)
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expectedTypes!!.add(QuotedString::class.java)
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expectedTypes.add(Number::class.java)
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expectedTypes.add(QuotedString::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenPrefixedNumberAndString_ReturnsCorrectTypes() {
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fun `types for a prefixed positive number and a string`() {
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val input = "+1\"apple\""
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expectedTypes!!.add(Number::class.java)
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expectedTypes!!.add(QuotedString::class.java)
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expectedTypes.add(Number::class.java)
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expectedTypes.add(QuotedString::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenMultipleDigitNumber_ReturnsCorrectTypes() {
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fun `types for a mulitple digit number`() {
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val input = "1234567890"
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expectedTypes!!.add(Number::class.java)
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expectedTypes.add(Number::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenQuote_ReturnsCorrectTypes() {
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fun `types for a quote`() {
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val input = "'"
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expectedTypes!!.add(QuoteMark::class.java)
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expectedTypes.add(QuoteMark::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenManyTypesWithNoWhitespace_ReturnsCorrectTypes() {
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fun `types for several expressions with no whitespace`() {
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val input = "xxx\"hi\"999()'aaa"
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(QuotedString::class.java)
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expectedTypes!!.add(Number::class.java)
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expectedTypes!!.add(LeftParenthesis::class.java)
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expectedTypes!!.add(RightParenthesis::class.java)
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expectedTypes!!.add(QuoteMark::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(QuotedString::class.java)
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expectedTypes.add(Number::class.java)
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expectedTypes.add(LeftParenthesis::class.java)
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expectedTypes.add(RightParenthesis::class.java)
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expectedTypes.add(QuoteMark::class.java)
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expectedTypes.add(Identifier::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenFunctionCall_ReturnsCorrectTypes() {
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fun `types for a function call`() {
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val input = "(defun myFunction (x)\n (print x))"
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expectedTypes!!.add(LeftParenthesis::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(LeftParenthesis::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(RightParenthesis::class.java)
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expectedTypes!!.add(LeftParenthesis::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(RightParenthesis::class.java)
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expectedTypes!!.add(RightParenthesis::class.java)
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expectedTypes.add(LeftParenthesis::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(LeftParenthesis::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(RightParenthesis::class.java)
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expectedTypes.add(LeftParenthesis::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(RightParenthesis::class.java)
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expectedTypes.add(RightParenthesis::class.java)
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assertTokenTypesMatch(input)
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}
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@Test
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fun givenBackTickExpression_ReturnsCorrectTypes() {
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fun `types for a back tick expression`() {
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val input = "`(list ,a ,@b)"
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expectedTypes!!.add(Backquote::class.java)
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expectedTypes!!.add(LeftParenthesis::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(Comma::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(Comma::class.java)
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expectedTypes!!.add(AtSign::class.java)
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expectedTypes!!.add(Identifier::class.java)
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expectedTypes!!.add(RightParenthesis::class.java)
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expectedTypes.add(Backquote::class.java)
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expectedTypes.add(LeftParenthesis::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(Comma::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(Comma::class.java)
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expectedTypes.add(AtSign::class.java)
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expectedTypes.add(Identifier::class.java)
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expectedTypes.add(RightParenthesis::class.java)
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assertTokenTypesMatch(input)
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}
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