Assert.IsAlmost

Name	Mandatory	Description	Default	Type
⬅️ Input		The input can be of any number type or a sequence of such types.		FloatFloat2Float3Float4IntInt2Int3Int4Int8Int16[Any]
Output ➡️		The output will be the input (passthrough).		Any
Value	No	The value to test against for almost equality.	none	FloatFloat2Float3Float4IntInt2Int3Int4Int8Int16[Any]Var(Float Float2 Float3 Float4 Int Int2 Int3 Int4 Int8 Int16 [Any])
Break	No	If we should trigger a debug breakpoint on failure.	false	Bool
Threshold	No	The smallest difference to be considered equal. Should be greater than zero.	1.19209e-07	FloatInt

This assertion is used to check whether the input is almost equal to a given value.

Details

Checks whether the input value lies within the range defined by the Threshold parameter around the specified Value. The shard returns true if the input is within this range (exclusive of the lower limit and inclusive of the upper limit), and false otherwise.

If the Break parameter is set to false - logs an assertion validation error but continues running the programme.

See also

• Assert.Is
• Assert.IsNot

Examples

Code

; :Break = `true`, assertion true
; => log no errors and dont abort program
8 | Assert.IsAlmost(7 Break: true Threshold: 1)

 

Code

; :Break = `true`, assertion false
; => abort the program
7.0 | Maybe({
  Assert.IsAlmost(8.0 Break: true)
})

[error] Failed assertion IsAlmost, input: 7 expected: 8
[error] Assert.IsAlmost -> Error: Assert failed - IsAlmost, <unknown>:4:3
[warning] Maybe shard Ignored an error: Assert failed - IsAlmost, line: 3, column: 7, wire: sample-wire

 

Code

; :Break = `false`, assertion true
; => log no errors and dont abort program
8.0 | Assert.IsAlmost(8.0 Break: false)

 

Code

; :Break = `false`, assertion false
; => log assertion error but dont abort program
8.0 | Maybe({
  Assert.IsAlmost(7.999 Break: false Threshold: 0.0001)
})

[error] Failed assertion IsAlmost, input: 8 expected: 7.999
[error] Assert.IsAlmost -> Error: Assert failed - IsAlmost, <unknown>:4:3
[warning] Maybe shard Ignored an error: Assert failed - IsAlmost, line: 3, column: 7, wire: sample-wire

 

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