Add test examples for non-ideal situations

core/src/test/java/com/facebook/ktfmt/format/GoogleStyleFormatterKtTest.kt

@@ -587,6 +587,116 @@ class GoogleStyleFormatterKtTest {
  .trimMargin(),
  )
 
+ @Test
+ fun `Trailing comma forces variable value in list onto new line with manageTrailingCommas turned off`() =
+ assertFormatted(
+ """
+ val aVar =
+ setOf(
+ Env.Dev,
+ Env.Prod,
+ )
+ val aVar = setOf(Env.Dev, Env.Prod)
+
+ """.trimIndent(),
+ formattingOptions = FormattingOptions(
+ blockIndent = 4,
+ continuationIndent = 4,
+ manageTrailingCommas = false
+ ),
+ deduceMaxWidth = false,
+ )
+
+ @Test
+ fun `nested functions, maps, and statements in named parameters`() =
+ assertFormatted(
+ """
+ /////////////////////////////////////////////////////////////////////
+ function(
+ param =
+ (rate downTo min step step).drop(1).map {
+ nestedFun(
+ rate =
+ rate(
+ value =
+ firstArg<Input>().info.get(0).rate.value
+ )
+ )
+ }
+ )
+
+ """.trimIndent(),
+ formattingOptions = Formatter.KOTLINLANG_FORMAT,
+ deduceMaxWidth = true,
+ )
+
+ @Test
+ fun `complex calls and calculation in named parameters with wrapping`() =
+ assertFormatted(
+ """
+ ////////////////////////////////////////////////////
+ calculateMath(
+ r =
+ apr.sc(10) /
+ BigDecimal(100) /
+ BigDecimal(12),
+ n = 12 * term,
+ numerator =
+ ((BigDecimal.ONE + r).pow(n)) -
+ BigDecimal.ONE,
+ denominator = r * (BigDecimal.ONE + r).pow(n),
+ )
+
+ """.trimIndent(),
+ formattingOptions = Formatter.KOTLINLANG_FORMAT,
+ deduceMaxWidth = true,
+ )
+
+ @Test
+ fun `complex calls and calculation in named parameters without wrapping`() =
+ assertFormatted(
+ """
+ calculateMath(
+ r = apr.sc(10) / BigDecimal(100) / BigDecimal(12),
+ n = 12 * term,
+ numerator = ((BigDecimal.ONE + r).pow(n)) - BigDecimal.ONE,
+ denominator = r * (BigDecimal.ONE + r).pow(n),
+ )
+
+ """.trimIndent(),
+ formattingOptions = Formatter.KOTLINLANG_FORMAT,
+ deduceMaxWidth = false,
+ )
+
+ @Test
+ fun `long call chains in named parameters`() =
+ assertFormatted(
+ """
+ |/////////////////////////////////////////////////
+ |declareOne(
+ | kind = DeclarationKind.FIELD,
+ | modifiers = property.modifierList,
+ | valOrVarKeyword =
+ | property.valOrVarKeyword.text,
+ | multiline =
+ | property.one.two.three.four.five.six.seven
+ | .eight
+ | .nine
+ | .ten,
+ | typeParametersBlaBla =
+ | property.typeParameterList,
+ | receiver = property.receiverTypeReference,
+ | name = property.nameIdentifier?.text,
+ | type = property.typeReference,
+ | typeConstraintList =
+ | property.typeConstraintList,
+ | delegate = property.delegate,
+ | initializer = property.initializer,
+ |)
+ |""".trimMargin(),
+ formattingOptions = Formatter.GOOGLE_FORMAT,
+ deduceMaxWidth = true)
+
  @Test
  fun `Arguments are blocks`() =
  assertFormatted(