How to use Double.shouldNotBeBetween method of io.kotest.matchers.doubles.Between class

1package com.sksamuel.kotest.matchers.doubles2import io.kotest.assertions.shouldFail3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.core.spec.style.FreeSpec5import io.kotest.matchers.doubles.beGreaterThan6import io.kotest.matchers.doubles.beGreaterThanOrEqualTo7import io.kotest.matchers.doubles.beLessThan8import io.kotest.matchers.doubles.beLessThanOrEqualTo9import io.kotest.matchers.doubles.beNaN10import io.kotest.matchers.doubles.beNegativeInfinity11import io.kotest.matchers.doubles.bePositiveInfinity12import io.kotest.matchers.doubles.between13import io.kotest.matchers.doubles.gt14import io.kotest.matchers.doubles.gte15import io.kotest.matchers.doubles.lt16import io.kotest.matchers.doubles.lte17import io.kotest.matchers.doubles.negative18import io.kotest.matchers.doubles.positive19import io.kotest.matchers.doubles.shouldBeBetween20import io.kotest.matchers.doubles.shouldBeGreaterThan21import io.kotest.matchers.doubles.shouldBeGreaterThanOrEqual22import io.kotest.matchers.doubles.shouldBeLessThan23import io.kotest.matchers.doubles.shouldBeLessThanOrEqual24import io.kotest.matchers.doubles.shouldBeMultipleOf25import io.kotest.matchers.doubles.shouldBeNaN26import io.kotest.matchers.doubles.shouldBeNegative27import io.kotest.matchers.doubles.shouldBeNegativeInfinity28import io.kotest.matchers.doubles.shouldBePositive29import io.kotest.matchers.doubles.shouldBePositiveInfinity30import io.kotest.matchers.doubles.shouldBeZero31import io.kotest.matchers.doubles.shouldNotBeBetween32import io.kotest.matchers.doubles.shouldNotBeGreaterThan33import io.kotest.matchers.doubles.shouldNotBeGreaterThanOrEqual34import io.kotest.matchers.doubles.shouldNotBeLessThan35import io.kotest.matchers.doubles.shouldNotBeLessThanOrEqual36import io.kotest.matchers.doubles.shouldNotBeNaN37import io.kotest.matchers.doubles.shouldNotBeNegative38import io.kotest.matchers.doubles.shouldNotBeNegativeInfinity39import io.kotest.matchers.doubles.shouldNotBePositive40import io.kotest.matchers.doubles.shouldNotBePositiveInfinity41import io.kotest.matchers.doubles.shouldNotBeZero42import io.kotest.matchers.should43import io.kotest.matchers.shouldBe44import io.kotest.matchers.shouldNot45import io.kotest.matchers.shouldNotBe46import io.kotest.property.arbitrary.filterNot47import io.kotest.property.checkAll48import kotlin.Double.Companion.MAX_VALUE49import kotlin.Double.Companion.MIN_VALUE50import kotlin.Double.Companion.NEGATIVE_INFINITY51import kotlin.Double.Companion.NaN52import kotlin.Double.Companion.POSITIVE_INFINITY53import kotlin.math.absoluteValue54class DoubleMatchersTest : FreeSpec() {55  init {56    "Between matcher" - {57      "Every numeric double that is not Double.MAX_VALUE" - {58        "Should match between" - {59          "When it's equal to the first number of the range" - {60            "With tolerance" {61              checkAll(100, nonMinNorMaxValueDoubles) {62                it.shouldMatchBetween(it, it.slightlyGreater(), it.toleranceValue())63              }64            }65            "Without tolerance" {66              checkAll(100, nonMinNorMaxValueDoubles) {67                it.shouldMatchBetween(it, it.slightlyGreater(), 0.0)68              }69            }70          }71          "When it's between the first number of the range and the last one" - {72            "With tolerance" {73              checkAll(100, nonMinNorMaxValueDoubles) {74                it.shouldMatchBetween(it.slightlySmaller(), it.slightlyGreater(), it.toleranceValue())75              }76            }77            "Without tolerance" {78              checkAll(100, nonMinNorMaxValueDoubles) {79                it.shouldMatchBetween(it.slightlySmaller(), it.slightlyGreater(), 0.0)80              }81            }82          }83          "When it's equal to the last number of the range" - {84            "With tolerance" {85              checkAll(100, nonMinNorMaxValueDoubles) {86                it.shouldMatchBetween(it.slightlySmaller(), it, it.toleranceValue())87              }88            }89            "Without tolerance" {90              checkAll(100, nonMinNorMaxValueDoubles) {91                it.shouldMatchBetween(it.slightlySmaller(), it, 0.0)92              }93            }94          }95        }96        "Should not match between" - {97          "When it's smaller than the first number of the range" - {98            "With tolerance" {99              checkAll(100, nonMinNorMaxValueDoubles) {100                it.shouldNotMatchBetween(it.slightlyGreater(), it.muchGreater(), it.toleranceValue())101              }102            }103            "Without tolerance" {104              checkAll(100, nonMinNorMaxValueDoubles) {105                it.shouldNotMatchBetween(it.slightlyGreater(), it.muchGreater(), 0.0)106              }107            }108          }109          "When it's bigger than the last number of the range" - {110            "With tolerance" {111              checkAll(100, nonMinNorMaxValueDoubles) {112                it.shouldNotMatchBetween(it.muchSmaller(), it.slightlySmaller(), it.toleranceValue())113              }114            }115            "Without tolerance" {116              checkAll(100, nonMinNorMaxValueDoubles) {117                it.shouldNotMatchBetween(it.muchSmaller(), it.slightlySmaller(), 0.0)118              }119            }120          }121        }122      }123    }124    "Less than matcher" - {125      "Every numeric double" - {126        "Should be less than" - {127          "Numbers bigger than itself" {128            checkAll(100, nonMinNorMaxValueDoubles) {129              it shouldMatchLessThan it.slightlyGreater()130              it shouldMatchLessThan it.muchGreater()131            }132          }133          "Infinity" {134            checkAll(100, nonMinNorMaxValueDoubles) {135              it shouldMatchLessThan POSITIVE_INFINITY136            }137          }138        }139        "Should not be less than" - {140          "Itself" {141            checkAll(100, nonMinNorMaxValueDoubles) {142              it shouldNotMatchLessThan it143            }144          }145          "Numbers smaller than itself" {146            checkAll(100, nonMinNorMaxValueDoubles) {147              it shouldNotMatchLessThan it.slightlySmaller()148              it shouldNotMatchLessThan it.muchSmaller()149            }150          }151          "Negative Infinity" {152            checkAll(100, nonMinNorMaxValueDoubles) {153              it shouldNotMatchLessThan it154            }155          }156          "NaN" {157            checkAll(100, nonMinNorMaxValueDoubles) {158              it shouldNotMatchLessThan NaN159            }160          }161        }162      }163      "The non-numeric double" - {164        "NaN" - {165          "Should not be less than" - {166            "Any numeric double" {167              checkAll(100, nonMinNorMaxValueDoubles) {168                NaN shouldNotMatchLessThan it169              }170            }171            "Any non-numeric double" {172              nonNumericDoubles.forEach {173                NaN shouldNotMatchLessThan it174              }175            }176          }177        }178        "Positive Infinity" - {179          "Should not be less than" - {180            "Any numeric double" {181              checkAll(100, nonMinNorMaxValueDoubles) {182                POSITIVE_INFINITY shouldNotMatchLessThan it183              }184            }185            "Any non-numeric double" {186              nonNumericDoubles.forEach {187                POSITIVE_INFINITY shouldNotMatchLessThan it188              }189            }190          }191        }192        "Negative Infinity" - {193          "Should be less than" - {194            "Any numeric double" {195              checkAll(100, nonMinNorMaxValueDoubles) {196                NEGATIVE_INFINITY shouldMatchLessThan it197              }198            }199            "Positive Infinity" {200              NEGATIVE_INFINITY shouldMatchLessThan POSITIVE_INFINITY201            }202          }203          "Should not be less than" - {204            "Itself" {205              NEGATIVE_INFINITY shouldNotMatchLessThan NEGATIVE_INFINITY206            }207            "NaN" {208              NEGATIVE_INFINITY shouldNotMatchLessThan NaN209            }210          }211        }212      }213    }214    "Positive matcher" - {215      "Zero" - {216        "Should not be positive" {217          0.0.shouldNotMatchPositive()218        }219      }220      "Every positive number" - {221        "Should be positive" {222          checkAll(100, numericDoubles.filterNot { it == 0.0 }) {223            it.absoluteValue.shouldMatchPositive()224          }225        }226      }227      "Every non-positive number" - {228        "Should not be positive" {229          checkAll(100, numericDoubles) {230            (-it.absoluteValue).shouldNotMatchPositive()231          }232        }233      }234      "The non-numeric double" - {235        "Positive Infinity" - {236          "Should be positive" {237            POSITIVE_INFINITY.shouldMatchPositive()238          }239        }240        "Negative Infinity" - {241          "Should not be positive" {242            NEGATIVE_INFINITY.shouldNotMatchPositive()243          }244        }245        "NaN" - {246          "Should not be positive" {247            NaN.shouldNotMatchPositive()248          }249        }250      }251    }252    "Negative matcher" - {253      "Zero" - {254        "Should not be negative" {255          0.0.shouldNotMatchNegative()256        }257      }258      "Every negative number" - {259        "Should be negative" {260          checkAll(100, numericDoubles.filterNot { it == 0.0 }) {261            (-it.absoluteValue).shouldMatchNegative()262          }263        }264      }265      "Every non-negative number" - {266        "Should not be negative" {267          checkAll(100, numericDoubles) {268            it.absoluteValue.shouldNotMatchNegative()269          }270        }271      }272      "The non-numeric double" - {273        "Positive Infinity" - {274          "Should not be negative" {275            POSITIVE_INFINITY.shouldNotMatchNegative()276          }277        }278        "Negative Infinity" - {279          "Should be negative" {280            NEGATIVE_INFINITY.shouldMatchNegative()281          }282        }283        "NaN" - {284          "Should not be negative" {285            NaN.shouldNotMatchNegative()286          }287        }288      }289    }290     "MultipleOf matcher" - {291        "Matches a simple multiple" {292           300.0 shouldBeMultipleOf 1.0293        }294        "Fails due to precision problems" {295           shouldFail {296              3.6e300 shouldBeMultipleOf 1.2297           }298        }299     }300    "Less than or equal matcher" - {301      "Every numeric double" - {302        "Should be less than or equal" - {303          "Itself" {304            checkAll(100, nonMinNorMaxValueDoubles) {305              it shouldMatchLessThanOrEqual it306            }307          }308          "Numbers bigger than itself" {309            checkAll(100, nonMinNorMaxValueDoubles) {310              it shouldMatchLessThanOrEqual it.muchGreater()311              it shouldMatchLessThanOrEqual it.slightlyGreater()312            }313          }314          "Positive Infinity" {315            checkAll(100, nonMinNorMaxValueDoubles) {316              it shouldMatchLessThanOrEqual POSITIVE_INFINITY317            }318          }319        }320        "Should not be less than or equal" - {321          "Any number smaller than itself" {322            checkAll(100, nonMinNorMaxValueDoubles) {323              it shouldNotMatchLessThanOrEqual it.slightlySmaller()324              it shouldNotMatchLessThanOrEqual it.muchSmaller()325            }326          }327          "Negative Infinity" {328            checkAll(100, nonMinNorMaxValueDoubles) {329              it shouldNotMatchLessThanOrEqual NEGATIVE_INFINITY330            }331          }332          "NaN" {333            checkAll(100, nonMinNorMaxValueDoubles) {334              it shouldNotMatchLessThanOrEqual NaN335            }336          }337        }338      }339      "The non-numeric double" - {340        "NaN" {341          "Should not be less than or equal" - {342            "Any numeric double" {343              checkAll(100, nonMinNorMaxValueDoubles) {344                NaN shouldNotMatchLessThanOrEqual it345              }346            }347            "Positive Infinity" {348              NaN shouldNotMatchLessThanOrEqual POSITIVE_INFINITY349            }350            "Negative Infinity" {351              NaN shouldNotMatchLessThanOrEqual NEGATIVE_INFINITY352            }353            "Itself" {354              NaN shouldNotMatchLessThanOrEqual NaN355            }356          }357        }358        "Positive Infinity" - {359          "Should be less than or equal" - {360            "Positive Infinity" {361              POSITIVE_INFINITY shouldMatchLessThanOrEqual POSITIVE_INFINITY362            }363          }364          "Should not be less than or equal" - {365            "Any numeric double" {366              checkAll(100, nonMinNorMaxValueDoubles) {367                POSITIVE_INFINITY shouldNotMatchLessThanOrEqual it368              }369            }370            "Negative Infinity" {371              POSITIVE_INFINITY shouldNotMatchLessThanOrEqual NEGATIVE_INFINITY372            }373            "NaN" {374              POSITIVE_INFINITY shouldNotMatchLessThanOrEqual NaN375            }376          }377        }378        "Negative Infinity" - {379          "Should be less than or equal" - {380            "Any numeric double" {381              checkAll(100, nonMinNorMaxValueDoubles) {382                NEGATIVE_INFINITY shouldMatchLessThanOrEqual it383              }384            }385            "Positive Infinity" {386              NEGATIVE_INFINITY shouldMatchLessThanOrEqual POSITIVE_INFINITY387            }388            "Itself" {389              NEGATIVE_INFINITY shouldMatchLessThanOrEqual NEGATIVE_INFINITY390            }391          }392          "Should not be less than or equal" - {393            "NaN" {394              NEGATIVE_INFINITY shouldNotMatchLessThanOrEqual NaN395            }396          }397        }398      }399    }400    "Greater than matcher" - {401      "Every numeric double" - {402        "Should be greater than" - {403          "Numbers smaller than itself" {404            checkAll(100, nonMinNorMaxValueDoubles) {405              it shouldMatchGreaterThan it.slightlySmaller()406              it shouldMatchGreaterThan it.muchSmaller()407            }408          }409          "Negative infinity" {410            checkAll(100, nonMinNorMaxValueDoubles) {411              it shouldMatchGreaterThan NEGATIVE_INFINITY412            }413          }414        }415        "Should not be greater than" - {416          "Itself" {417            checkAll(100, nonMinNorMaxValueDoubles) {418              it shouldNotMatchGreaterThan it419            }420          }421          "Numbers greater than itself" {422            checkAll(100, nonMinNorMaxValueDoubles) {423              it shouldNotMatchGreaterThan it.slightlyGreater()424              it shouldNotMatchGreaterThan it.muchGreater()425            }426          }427          "NaN" {428            checkAll(100, nonMinNorMaxValueDoubles) {429              it shouldNotMatchGreaterThan NaN430            }431          }432          "Positive Infinity" {433            checkAll(100, nonMinNorMaxValueDoubles) {434              it shouldNotMatchGreaterThan POSITIVE_INFINITY435            }436          }437        }438      }439      "The non-numeric double" - {440        "NaN" - {441          "Should not be greater than" - {442            "Itself" {443              NaN shouldNotMatchGreaterThan NaN444            }445            "Any numeric double" {446              checkAll(100, numericDoubles) {447                NaN shouldNotMatchGreaterThan it448              }449            }450            "Positive Infinity" {451              NaN shouldNotMatchGreaterThan POSITIVE_INFINITY452            }453            "Negative Infinity" {454              NaN shouldNotMatchGreaterThan NEGATIVE_INFINITY455            }456          }457        }458      }459    }460    "Greater than or equal matcher" - {461      "Every numeric double" - {462        "Should be greater than or equal to" - {463          "Itself" {464            checkAll(100, nonMinNorMaxValueDoubles) {465              it shouldMatchGreaterThanOrEqual it466            }467          }468          "Numbers smaller than itself" {469            checkAll(100, nonMinNorMaxValueDoubles) {470              it shouldMatchGreaterThanOrEqual it.slightlySmaller()471              it shouldMatchGreaterThanOrEqual it.muchSmaller()472            }473          }474          "Negative Infinity" {475            checkAll(100, nonMinNorMaxValueDoubles) {476              it shouldMatchGreaterThanOrEqual NEGATIVE_INFINITY477            }478          }479        }480        "Should not be greater than or equal to" - {481          "Numbers bigger than itself" {482            checkAll(100, nonMinNorMaxValueDoubles) {483              it shouldNotMatchGreaterThanOrEqual it.slightlyGreater()484              it shouldNotMatchGreaterThanOrEqual it.muchGreater()485            }486          }487          "Positive Infinity" {488            checkAll(100, nonMinNorMaxValueDoubles) {489              it shouldNotMatchGreaterThanOrEqual POSITIVE_INFINITY490            }491          }492          "NaN" {493            checkAll(100, nonMinNorMaxValueDoubles) {494              it shouldNotMatchGreaterThanOrEqual NaN495            }496          }497        }498      }499      "The non-numeric double" - {500        "NaN" - {501          "Should not be greater than or equal to" - {502            "Itself" {503              NaN shouldNotMatchGreaterThanOrEqual NaN504            }505            "Any numeric double" {506              checkAll(100, numericDoubles) {507                NaN shouldNotMatchGreaterThanOrEqual it508              }509            }510            "Positive Infinity" {511              NaN shouldNotMatchGreaterThanOrEqual POSITIVE_INFINITY512            }513            "Negative Infinity" {514              NaN shouldNotMatchGreaterThanOrEqual NEGATIVE_INFINITY515            }516          }517        }518        "Positive Infinity" - {519          "Should be greater than or equal to" - {520            "Itself" {521              POSITIVE_INFINITY shouldMatchGreaterThanOrEqual POSITIVE_INFINITY522            }523            "Negative Infinity" {524              POSITIVE_INFINITY shouldMatchGreaterThanOrEqual NEGATIVE_INFINITY525            }526            "Any numeric double" {527              checkAll(100, numericDoubles) {528                POSITIVE_INFINITY shouldMatchGreaterThanOrEqual it529              }530            }531          }532          "Should not be greater than or equal to" - {533            "NaN" {534              POSITIVE_INFINITY shouldNotMatchGreaterThanOrEqual NaN535            }536          }537        }538        "Negative Infinity" - {539          "Should be greater than or equal to" - {540            "Itself" {541              NEGATIVE_INFINITY shouldMatchGreaterThanOrEqual NEGATIVE_INFINITY542            }543          }544          "Should not be greater than or equal to" - {545            "Any numeric double" {546              checkAll(100, numericDoubles) {547                NEGATIVE_INFINITY shouldNotMatchGreaterThanOrEqual it548              }549            }550            "Positive Infinity" {551              NEGATIVE_INFINITY shouldNotMatchGreaterThanOrEqual POSITIVE_INFINITY552            }553            "NaN" {554              NEGATIVE_INFINITY shouldNotMatchGreaterThanOrEqual NaN555            }556          }557        }558      }559    }560    "NaN matcher" - {561      "Every numeric double" - {562        "Should not be NaN" {563          checkAll(100, numericDoubles) {564            it.shouldNotMatchNaN()565          }566        }567      }568      "The non-numeric double" - {569        "NaN" - {570          "Should match NaN" {571            NaN.shouldMatchNaN()572          }573        }574        "Positive Infinity" - {575          "Should not match NaN" {576            POSITIVE_INFINITY.shouldNotMatchNaN()577          }578        }579        "Negative Infinity" - {580          "Should not match NaN" {581            NEGATIVE_INFINITY.shouldNotMatchNaN()582          }583        }584      }585    }586    "Positive Infinity matcher" - {587      "Any numeric double" - {588        "Should not match positive infinity" {589          checkAll(100, numericDoubles) {590            it.shouldNotMatchPositiveInfinity()591          }592        }593      }594      "The non-numeric double" - {595        "Positive Infinity" - {596          "Should match positive infinity" {597            POSITIVE_INFINITY.shouldMatchPositiveInfinity()598          }599        }600        "Negative Infinity" - {601          "Should not match positive infinity" {602            NEGATIVE_INFINITY.shouldNotMatchPositiveInfinity()603          }604        }605        "NaN" - {606          "Should not match positive infinity" {607            NaN.shouldNotMatchPositiveInfinity()608          }609        }610      }611    }612    "Negative Infinity matcher" - {613      "Any numeric double" - {614        "Should not match negative infinity" {615          checkAll(100, numericDoubles) {616            it.shouldNotMatchNegativeInfinity()617          }618        }619      }620      "The non-numeric double" - {621        "Negative Infinity" - {622          "Should match negative infinity" {623            NEGATIVE_INFINITY.shouldMatchNegativeInfinity()624          }625        }626        "Positive Infinity" - {627          "Should not match negative infinity" {628            POSITIVE_INFINITY.shouldNotMatchNegativeInfinity()629          }630        }631        "NaN" - {632          "Should not match negative infinity" {633            NaN.shouldNotMatchNegativeInfinity()634          }635        }636      }637    }638    "shouldBeZero" {639      (0.0).shouldBeZero()640      (-0.1).shouldNotBeZero()641      (0.1).shouldNotBeZero()642      MIN_VALUE.shouldNotBeZero()643      MAX_VALUE.shouldNotBeZero()644      NaN.shouldNotBeZero()645      POSITIVE_INFINITY.shouldNotBeZero()646      NEGATIVE_INFINITY.shouldNotBeZero()647    }648  }649  private fun shouldThrowAssertionError(message: String, vararg expression: () -> Any?) {650    expression.forEach {651      val exception = shouldThrow<AssertionError>(it)652      exception.message shouldBe message653    }654  }655  private fun Double.shouldMatchBetween(a: Double, b: Double, tolerance: Double) {656    this.shouldBeBetween(a, b, tolerance)657    this shouldBe between(a, b, tolerance)658    this.shouldThrowExceptionOnNotBetween(a, b, tolerance)659  }660  private fun Double.shouldNotMatchBetween(a: Double, b: Double, tolerance: Double) {661    this.shouldNotBeBetween(a, b, tolerance)662    this shouldNotBe between(a, b, tolerance)663    this.shouldThrowExceptionOnBetween(a, b, tolerance)664  }665  private fun Double.shouldThrowExceptionOnBetween(a: Double, b: Double, tolerance: Double) {666    when {667      this < a -> this.shouldThrowMinimumExceptionOnBetween(a, b, tolerance)668      this > b -> this.shouldThrowMaximumExceptionOnBetween(a, b, tolerance)669      else     -> throw IllegalStateException()670    }671  }672  private fun Double.shouldThrowMinimumExceptionOnBetween(a: Double, b: Double, tolerance: Double) {673    val message = "$this should be bigger than $a"674    shouldThrowExceptionOnBetween(a, b, tolerance, message)675  }676  private fun Double.shouldThrowMaximumExceptionOnBetween(a: Double, b: Double, tolerance: Double) {677    val message = "$this should be smaller than $b"678    shouldThrowExceptionOnBetween(a, b, tolerance, message)679  }680  private fun Double.shouldThrowExceptionOnBetween(681    a: Double,682    b: Double,683    tolerance: Double,684    message: String = "$this should be smaller than $b and bigger than $a"685  ) {686    shouldThrowAssertionError(message,687                              { this.shouldBeBetween(a, b, tolerance) },688                              { this shouldBe between(a, b, tolerance) })689  }690  private fun Double.shouldThrowExceptionOnNotBetween(691    a: Double,692    b: Double,693    tolerance: Double,694    message: String = "$this should not be smaller than $b and should not be bigger than $a"695  ) {696    shouldThrowAssertionError(message,697                              { this.shouldNotBeBetween(a, b, tolerance) },698                              { this shouldNotBe between(a, b, tolerance) })699  }700  private infix fun Double.shouldMatchLessThan(x: Double) {701    this shouldBe lt(x)702    this shouldBeLessThan x703    this should beLessThan(x)704    this shouldThrowExceptionOnNotLessThan x705  }706  private infix fun Double.shouldThrowExceptionOnNotLessThan(x: Double) {707    shouldThrowAssertionError("$this should not be < $x",708                              { this shouldNotBe lt(x) },709                              { this shouldNotBeLessThan x },710                              { this shouldNot beLessThan(x) })711  }712  private infix fun Double.shouldNotMatchLessThan(x: Double) {713    this shouldNotBe lt(x)714    this shouldNotBeLessThan x715    this shouldNot beLessThan(x)716    this shouldThrowExceptionOnLessThan x717  }718  private infix fun Double.shouldThrowExceptionOnLessThan(x: Double) {719    shouldThrowAssertionError("$this should be < $x",720                              { this shouldBe lt(x) },721                              { this shouldBeLessThan x },722                              { this should beLessThan(x) }723    )724  }725  private fun Double.shouldMatchPositive() {726    this.shouldBePositive()727    this shouldBe positive()728    this.shouldThrowExceptionOnNotPositive()729  }730  private fun Double.shouldThrowExceptionOnNotPositive() {731    shouldThrowAssertionError("$this should not be > 0.0",732                              { this shouldNotBe positive() },733                              { this.shouldNotBePositive() }734    )735  }736  private fun Double.shouldNotMatchPositive() {737    this.shouldNotBePositive()738    this shouldNotBe positive()739    this.shouldThrowExceptionOnPositive()740  }741  private fun Double.shouldThrowExceptionOnPositive() {742    shouldThrowAssertionError("$this should be > 0.0",743                              { this shouldBe positive() },744                              { this.shouldBePositive() }745    )746  }747  private fun Double.shouldMatchNegative() {748    this.shouldBeNegative()749    this shouldBe negative()750    this.shouldThrowExceptionOnNotNegative()751  }752  private fun Double.shouldThrowExceptionOnNotNegative() {753    shouldThrowAssertionError("$this should not be < 0.0",754                              { this shouldNotBe negative() },755                              { this.shouldNotBeNegative() }756    )757  }758  private fun Double.shouldNotMatchNegative() {759    this.shouldNotBeNegative()760    this shouldNotBe negative()761    this.shouldThrowExceptionOnNegative()762  }763  private fun Double.shouldThrowExceptionOnNegative() {764    shouldThrowAssertionError("$this should be < 0.0",765                              { this shouldBe negative() },766                              { this.shouldBeNegative() }767    )768  }769  private infix fun Double.shouldMatchLessThanOrEqual(x: Double) {770    this should beLessThanOrEqualTo(x)771    this shouldBe lte(x)772    this shouldBeLessThanOrEqual x773    this shouldThrowExceptionOnNotLessThanOrEqual x774  }775  private infix fun Double.shouldThrowExceptionOnNotLessThanOrEqual(x: Double) {776    shouldThrowAssertionError("$this should not be <= $x",777                              { this shouldNot beLessThanOrEqualTo(x) },778                              { this shouldNotBe lte(x) },779                              { this shouldNotBeLessThanOrEqual x }780    )781  }782  private infix fun Double.shouldNotMatchLessThanOrEqual(x: Double) {783    this shouldNot beLessThanOrEqualTo(x)784    this shouldNotBe lte(x)785    this shouldNotBeLessThanOrEqual x786    this shouldThrowExceptionOnLessThanOrEqual x787  }788  private infix fun Double.shouldThrowExceptionOnLessThanOrEqual(x: Double) {789    shouldThrowAssertionError("$this should be <= $x",790                              { this should beLessThanOrEqualTo(x) },791                              { this shouldBe lte(x) },792                              { this shouldBeLessThanOrEqual x }793    )794  }795  private infix fun Double.shouldMatchGreaterThan(x: Double) {796    this should beGreaterThan(x)797    this shouldBe gt(x)798    this shouldBeGreaterThan x799    this shouldThrowExceptionOnNotGreaterThan x800  }801  private infix fun Double.shouldThrowExceptionOnNotGreaterThan(x: Double) {802    shouldThrowAssertionError("$this should not be > $x",803                              { this shouldNot beGreaterThan(x) },804                              { this shouldNotBeGreaterThan (x) },805                              { this shouldNotBe gt(x) })806  }807  private infix fun Double.shouldNotMatchGreaterThan(x: Double) {808    this shouldNot beGreaterThan(x)809    this shouldNotBe gt(x)810    this shouldNotBeGreaterThan x811    this shouldThrowExceptionOnGreaterThan (x)812  }813  private infix fun Double.shouldThrowExceptionOnGreaterThan(x: Double) {814    shouldThrowAssertionError("$this should be > $x",815                              { this should beGreaterThan(x) },816                              { this shouldBe gt(x) },817                              { this shouldBeGreaterThan x })818  }819  private infix fun Double.shouldMatchGreaterThanOrEqual(x: Double) {820    this should beGreaterThanOrEqualTo(x)821    this shouldBe gte(x)822    this shouldBeGreaterThanOrEqual x823    this shouldThrowExceptionOnNotGreaterThanOrEqual (x)824  }825  private infix fun Double.shouldThrowExceptionOnNotGreaterThanOrEqual(x: Double) {826    shouldThrowAssertionError("$this should not be >= $x",827                              { this shouldNot beGreaterThanOrEqualTo(x) },828                              { this shouldNotBe gte(x) },829                              { this shouldNotBeGreaterThanOrEqual x })830  }831  private infix fun Double.shouldNotMatchGreaterThanOrEqual(x: Double) {832    this shouldNot beGreaterThanOrEqualTo(x)833    this shouldNotBe gte(x)834    this shouldNotBeGreaterThanOrEqual x835    this shouldThrowExceptionOnGreaterThanOrEqual (x)836  }837  private infix fun Double.shouldThrowExceptionOnGreaterThanOrEqual(x: Double) {838    shouldThrowAssertionError("$this should be >= $x",839                              { this should beGreaterThanOrEqualTo(x) },840                              { this shouldBe gte(x) },841                              { this shouldBeGreaterThanOrEqual x })842  }843  private fun Double.shouldMatchNaN() {844    this should beNaN()845    this.shouldBeNaN()846    this.shouldThrowExceptionOnNotBeNaN()847  }848  private fun Double.shouldThrowExceptionOnNotBeNaN() {849    shouldThrowAssertionError("$this should not be NaN",850                              { this.shouldNotBeNaN() },851                              { this shouldNot beNaN() })852  }853  private fun Double.shouldNotMatchNaN() {854    this shouldNot beNaN()855    this.shouldNotBeNaN()856    this.shouldThrowExceptionOnBeNaN()857  }858  private fun Double.shouldThrowExceptionOnBeNaN() {859    shouldThrowAssertionError("$this should be NaN",860                              { this.shouldBeNaN() },861                              { this should beNaN() })862  }863  private fun Double.shouldMatchPositiveInfinity() {864    this should bePositiveInfinity()865    this.shouldBePositiveInfinity()866    this.shouldThrowExceptionOnNotBePositiveInfinity()867  }868  private fun Double.shouldThrowExceptionOnNotBePositiveInfinity() {869    shouldThrowAssertionError("$this should not be POSITIVE_INFINITY",870                              { this shouldNot bePositiveInfinity() },871                              { this.shouldNotBePositiveInfinity() })872  }873  private fun Double.shouldNotMatchPositiveInfinity() {874    this shouldNot bePositiveInfinity()875    this.shouldNotBePositiveInfinity()876    this.shouldThrowExceptionOnBePositiveInfinity()877  }878  private fun Double.shouldThrowExceptionOnBePositiveInfinity() {879    shouldThrowAssertionError("$this should be POSITIVE_INFINITY",880                              { this should bePositiveInfinity() },881                              { this.shouldBePositiveInfinity() })882  }883  private fun Double.shouldMatchNegativeInfinity() {884    this should beNegativeInfinity()885    this.shouldBeNegativeInfinity()886    this.shouldThrowExceptionOnNotBeNegativeInfinity()887  }888  private fun Double.shouldThrowExceptionOnNotBeNegativeInfinity() {889    shouldThrowAssertionError("$this should not be NEGATIVE_INFINITY",890            { this shouldNot beNegativeInfinity() },891            { this.shouldNotBeNegativeInfinity() })892  }893  private fun Double.shouldNotMatchNegativeInfinity() {894    this shouldNot beNegativeInfinity()895    this.shouldNotBeNegativeInfinity()896    this.shouldThrowExceptionOnBeNegativeInfinity()897  }898  private fun Double.shouldThrowExceptionOnBeNegativeInfinity() {899    shouldThrowAssertionError("$this should be NEGATIVE_INFINITY",900            { this should beNegativeInfinity() },901            { this.shouldBeNegativeInfinity() })902  }903}...

1package io.kotest.matchers.doubles2import io.kotest.matchers.Matcher3import io.kotest.matchers.MatcherResult4import io.kotest.matchers.shouldBe5import io.kotest.matchers.shouldNotBe6import kotlin.math.abs7/**8 * Asserts that this [Double] is in the interval [[a]-[tolerance] , [b]+[tolerance]]9 *10 * Verifies that this [Double] is greater than or equal to ([a] - [tolerance]) and less than or equal to ([b] + [tolerance])11 *12 * Opposite of [Double.shouldNotBeBetween]13 *14 * ```15 * 0.5.shouldBeBetween(0.2, 0.7, 0.0)   // Assertion passes16 * 0.5.shouldBeBetween(0.2, 0.3, 0.0)   // Assertion fails17 * 0.5.shouldBeBetween(0.2, 0.3, 0.2)   // Assertion passes18 * 0.5.shouldBeBetween(0.2, 0.3, 0.1)   // Assertion fails19 * ```20 */21fun Double.shouldBeBetween(a: Double, b: Double, tolerance: Double) = this shouldBe between(a, b, tolerance)22/**23 * Asserts that this [Double] is NOT in the interval [[a]-[tolerance] , [b]+[tolerance]]24 *25 * Verifies that this [Double] is not:26 * - Greater than or equal to ([a] - [tolerance])27 * - Less than or equal to ([b] + [tolerance])28 *29 * If and only if both the assertions are true, which means that this [Double] is in the interval, this assertion fails.30 *31 * Opposite of [Double.shouldBeBetween]32 *33 *34 * ```35 * 0.5.shouldNotBeBetween(0.2, 0.7, 0.0)   // Assertion fails36 * 0.5.shouldNotBeBetween(0.2, 0.3, 0.0)   // Assertion passes37 * 0.5.shouldNotBeBetween(0.2, 0.3, 0.2)   // Assertion fails38 * 0.5.shouldNotBeBetween(0.2, 0.3, 0.1)   // Assertion passes39 * ```40 */41fun Double.shouldNotBeBetween(a: Double, b: Double, tolerance: Double) = this shouldNotBe between(a, b, tolerance)42/**43 * Matcher that matches doubles and intervals44 *45 * Verifies that a specific [Double] is in the interval [[a] - [tolerance] , [b] + [tolerance]].46 *47 * For example:48 *49 * 0.5 is in the interval [0.4 , 0.6], because 0.4 <= 0.5 <= 0.6.50 *51 * This matcher also includes the bonds of the interval, so:52 *53 * 0.5 is in the interval [0.5, 0.6] because 0.5 <= 0.5 <= 0.6.54 *55 * The parameter [tolerance] is used to allow a slightly wider range, to include possible imprecision, and can be 0.0.56 *57 * 0.5 is in the interval [0.6, 0.7] when there's a tolerance of 0.1, because (0.6 - 0.1) <= 0.5 <= (0.7 + 0.1)58 *59 * ```60 *  0.5 shouldBe between(0.1, 1.0, 0.0)     // Assertion passes61 *  0.5 shouldNotBe between(1.0, 2.0, 0.1)  // Assertion passes62 * ```63 *64 * @see [Double.shouldBeBetween]65 * @see [Double.shouldNotBeBetween]66 */67fun between(a: Double, b: Double, tolerance: Double): Matcher<Double> = object : Matcher<Double> {68  override fun test(value: Double): MatcherResult {69    val differenceToMinimum = value - a70    val differenceToMaximum = b - value71    if (differenceToMinimum < 0 && abs(differenceToMinimum) > tolerance) {72      return MatcherResult(false, "$value should be bigger than $a", "$value should not be bigger than $a")73    }74    if (differenceToMaximum < 0 && abs(differenceToMaximum) > tolerance) {75      return MatcherResult(false, "$value should be smaller than $b", "$value should not be smaller than $b")76    }77    return MatcherResult(true,78      "$value should be smaller than $b and bigger than $a",79      "$value should not be smaller than $b and should not be bigger than $a")80  }81}...

1    1.0.shouldNotBeBetween(2.0, 3.0)2    1.0.shouldNotBeBetween(2.0, 3.0, 0.1)3    1.0.shouldNotBeBetween(2.0, 3.0, 0.1, 0.1)4    1.0.shouldNotBeBetween(2.0, 3.0)5    1.0.shouldNotBeBetween(2.0, 3.0, 0.1)6    1.0.shouldNotBeBetween(2.0, 3.0, 0.1, 0.1)

1double.shouldNotBeBetween(5.0, 10.0)2double.shouldNotBeBetween(5.0, 10.0)3double.shouldBeBetween(5.0, 10.0)4double.shouldBeBetween(5.0, 10.0)5double.shouldNotBeBetween(5.0, 10.0)6double.shouldNotBeBetween(5.0, 10.0)7double.shouldBeBetween(5.0, 10.0)8double.shouldBeBetween(5.0, 10.0)9double.shouldNotBeBetween(5.0, 10.0)10double.shouldNotBeBetween(5.0, 10.0)11double.shouldBeBetween(5.0, 10.0)12double.shouldBeBetween(5.0, 10.0)13double.shouldNotBeBetween(5.0, 10.0)14double.shouldNotBeBetween(5.0, 10.0)

1    1.1.shouldNotBeBetween(1.0, 1.2)2    1.1.shouldNotBeBetween(1.0, 1.2, 0.1)3    1.1.shouldNotBeBetween(1.0, 1.2, 0.1, 0.2)4    1.1.shouldNotBeBetween(1.0, 1.2, 0.1, 0.2, 0.3)5    1.1.shouldNotBeBetween(1.0, 1.2, 0.1, 0.2, 0.3, 0.4)6    1.1.shouldNotBeBetween(1.0, 1.2, 0.1, 0.2, 0.3, 0.4, 0.5)7    1.1.shouldNotBeBetween(1.0, 1.2, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6)8    1.1.shouldNotBeBetween(1.0, 1.2, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7)9    1.1.shouldNotBeBetween(1.0,

1@DisplayName ( "Double.shouldNotBeBetween" ) @Test fun testDoubleShouldNotBeBetween ( ) { 1.0 . shouldNotBeBetween ( 2.0 , 3.0 ) }2@DisplayName ( "Double.shouldNotBeBetween" ) @Test fun testDoubleShouldNotBeBetween ( ) { 1.0 . shouldNotBeBetween ( 2.0 , 3.0 ) }3@DisplayName ( "Double.shouldBeBetween" ) @Test fun testDoubleShouldBeBetween ( ) { 1.0 . shouldBeBetween ( 2.0 , 3.0 ) }4@DisplayName ( "Double.shouldBeBetween" ) @Test fun testDoubleShouldBeBetween ( ) { 1.0 . shouldBeBetween ( 2.0 , 3.0 ) }5@DisplayName ( "Double.shouldBeGreaterThan" ) @Test fun testDoubleShouldBeGreaterThan ( ) { 1.0 . shouldBeGreaterThan ( 2.0 ) }6@DisplayName ( "Double.shouldBeGreaterThan" ) @Test fun testDoubleShouldBeGreaterThan ( ) { 1.0 . shouldBeGreaterThan ( 2.0 ) }7@DisplayName ( "Double.shouldBeGreaterThanOrEqual" ) @Test fun testDoubleShouldBeGreaterThanOrEqual ( ) { 1.0 . shouldBeGreaterThanOrEqual ( 2.0 ) }8@DisplayName ( "Double.shouldBeGreaterThanOrEqual" ) @Test fun testDoubleShouldBeGreaterThanOrEqual ( ) { 1.0 . shouldBeGreaterThanOrEqual ( 2.0 ) }

1@DisplayName("Testing Double.shouldNotBeBetween method of io.kotest.matchers.doubles.Between class")2fun testShouldNotBeBetween() {3double.shouldNotBeBetween(0.0, 2.0)4}5}6@DisplayName("Testing Double.shouldNotBeBetween method of io.kotest.matchers.doubles.Between class")7fun testShouldNotBeBetween() {8double.shouldNotBeBetween(0.0, 2.0)9}10}11@DisplayName("Testing Double.shouldNotBeBetween method of io.kotest.matchers.doubles.Between class")12fun testShouldNotBeBetween() {13double.shouldNotBeBetween(0.0, 2.0)14}15}16@DisplayName("Testing Double.shouldNotBeBetween method of io.kotest.matchers.doubles.Between class")17fun testShouldNotBeBetween() {18double.shouldNotBeBetween(0.0, 2.0)19}20}21@DisplayName("Testing Double.shouldNotBeBetween method of io.kotest.matchers.doubles.Between class")22fun testShouldNotBeBetween() {23double.shouldNotBeBetween(0.0, 2.0)24}25}26@DisplayName("Testing Double.shouldNotBeBetween method of io.kotest.matchers.doubles.Between class")27fun testShouldNotBeBetween() {28double.shouldNotBeBetween(0.0, 2.0)29}30}31@DisplayName("Testing Double.shouldNotBeBetween method of io

1    0.0.shouldNotBeBetween(0.0, 10.0)2    0.0.shouldNotBeBetween(0.0, 10.0)3    0.0.shouldBeBetween(0.0, 10.0)4    0.0.shouldBeBetween(0.0, 10.0)5    0.0.shouldBeBetween(0.0, 10.0)6    0.0.shouldBeBetween(0.0, 10.0)