DataFrame/src/DataFrame-IO-Tests/DataFrameTypeDetectorTest.class.st at scatterplot · PolyMathOrg/DataFrame · GitHub

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Class {
	#name : #DataFrameTypeDetectorTest,
	#superclass : #TestCase,
	#instVars : [
		'detector'
	],
	#category : #'DataFrame-IO-Tests-Type'
}

{ #category : #running }
DataFrameTypeDetectorTest >> setUp [
	super setUp.
	detector := DataFrameTypeDetector new
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testBooleanColumn [
	| column expected actual |
	column := #('true' 'false' 'true' 'true') asDataSeries.
	expected := #(true false true true) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testBooleanColumnWithNils [
	| column expected actual |
	column := #('true' 'false' 'true' nil) asDataSeries.
	expected := #(true false true nil) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testBooleanColumnWithNilsMixedCase [
	| column expected actual |
	column := #('TRUE' 'False' 'true' nil) asDataSeries.
	expected := #(true false true nil) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testBooleanColumnWithNumbers [
	"Make sure that our boolean type detector doesn't return true for numbers"
	| column expected actual |
	column := #(1 2 3 4 5) asDataSeries.
	expected := false.
	actual := detector canAllBeBoolean: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testBooleanColumnWithStrings [
	"Make sure that our boolean type detector doesn't return true for strings that aren't true or false"
	| column expected actual |
	column := #('this' 'should' 'be' 'false') asDataSeries.
	expected := false.
	actual := detector canAllBeBoolean: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testColumnAllNils [
	| column expected actual |
	column := #(nil nil nil nil) asDataSeries.
	expected := #(nil nil nil nil) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testDateAndTimeColumn [
	| column expected actual |
	column := #('18 March 1996 1:10' '6 March 1996 2:30 am' '12 March 2019 14:24 am' '9 February 2019 00:00 am') asDataSeries.
	expected := (#('1996-03-18T01:10:00' '1996-03-06T02:30:00' '2019-03-12T14:24:00' '2019-02-09T00:00:00') collect: #asDateAndTime) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testDateAndTimeColumnWithNils [
	| column expected actual |
	column := #(nil '6 March 1996 2:30 am' '12 March 2019 14:24 am' nil) asDataSeries.
	expected := { nil. '1996-03-06T02:30:00' asDateAndTime. '2019-03-12T14:24:00' asDateAndTime. nil} asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testExplicitType [
	"Test that DataFrameTypeDetector can be convert types without guessing"
	| df expected |
	df := DataFrame
		withColumns:
			#(#('2.4' '0.5' '-1.2' '-2.3' '3.2') #('true' 'true' 'true' 'false' 'true') #('rain' 'rain' 'snow' '-' 'rain')).
	df columnNames: #(temperature precipitation type).
	detector
		columnTypes:
			{('temperature' -> Float).
			('precipitation' -> Boolean).
			('type' -> String)} asDictionary.
	expected := DataFrame
		withColumns:
			#(#(2.4 0.5 -1.2 -2.3 3.2) #(true true true false true) #('rain' 'rain' 'snow' '-' 'rain')).
	expected columnNames: #(temperature precipitation type).
	detector detectTypesAndConvert: df.
	self assert: df equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testExplicitTypeCustomConversion [
	"Test that DataFrameTypeDetector can be convert types
	 without guessing using a user supplied block"

	| df expected |
	df := DataFrame
		withColumns:
			#(#('2.4' '0.5' '-1.2' '-2.3' '3.2') #('1' '1' '1' '0' '1') #('rain' 'rain' 'snow' '-' 'rain')).
	df columnNames: #(temperature precipitation type).
	detector
		columnTypes:
			{('temperature' -> Float).
			('precipitation'
				-> [ :array | array collect: [ :each | each asInteger = 1 ] ]).
			('type' -> String)} asDictionary.
	expected := DataFrame
		withColumns:
			#(#(2.4 0.5 -1.2 -2.3 3.2) #(true true true false true) #('rain' 'rain' 'snow' '-' 'rain')).
	expected columnNames: #(temperature precipitation type).
	detector detectTypesAndConvert: df.
	self assert: df equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testExplicitTypeGuess [
	"Test that DataFrameTypeDetector can be convert types with guessing"
	| df expected |
	df := DataFrame
		withColumns:
			#(#('2.4' '0.5' '-1.2' '-2.3' '3.2') #('true' 'true' 'true' 'false' 'true') #('rain' 'rain' 'snow' '-' 'rain')).
	df columnNames: #(temperature precipitation type).
	detector
		columnTypes:
			{('temperature' -> nil).
			('precipitation' -> Boolean).
			('type' -> String)} asDictionary.
	expected := DataFrame
		withColumns:
			#(#(2.4 0.5 -1.2 -2.3 3.2) #(true true true false true) #('rain' 'rain' 'snow' '-' 'rain')).
	expected columnNames: #(temperature precipitation type).
	detector detectTypesAndConvert: df.
	self assert: df equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testExplicitTypeMissing [
	"Test that DataFrameTypeDetector can be convert types with guessing"
	| df expected |
	df := DataFrame
		withColumns:
			#(#('2.4' '0.5' '-1.2' '-2.3' '3.2') #('true' 'true' 'true' 'false' 'true') #('rain' 'rain' 'snow' '-' 'rain')).
	df columnNames: #(temperature precipitation type).
	detector
		columnTypes:
			{('precipitation' -> Boolean).
			('type' -> String)} asDictionary.
	expected := DataFrame
		withColumns:
			#(#(2.4 0.5 -1.2 -2.3 3.2) #(true true true false true) #('rain' 'rain' 'snow' '-' 'rain')).
	expected columnNames: #(temperature precipitation type).
	detector detectTypesAndConvert: df.
	self assert: df equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testFloatColumn [
	| column expected actual |
	column := #('1.2' '3.3' '-10.1' '0.0') asDataSeries.
	expected := #(1.2 3.3 -10.1 0.0) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testFloatColumnWithNils [
	| column expected actual |
	column := #('1.2' nil '-10.1' '0.0') asDataSeries.
	expected := #(1.2 nil -10.1 0.0) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testIntegerColumn [
	| column expected actual |
	column := #('1' '3' '-10' '0') asDataSeries.
	expected := #(1 3 -10 0) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testIntegerColumnWithNils [
	| column expected actual |
	column := #('1' '3' '-10' nil) asDataSeries.
	expected := #(1 3 -10 nil) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testMixedNumberColumn [
	| column expected actual |
	column := #('1' '3.3' '-10' '0') asDataSeries.
	expected := #(1.0 3.3 -10.0 0.0) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testMixedNumberColumnWithNils [
	| column expected actual |
	column := #(nil '3.3' nil '0') asDataSeries.
	expected := #(nil 3.3 nil 0.0) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testStringColumn [
	| column actual |
	column := #('lorem' 'ipsum' 'dolor' 'sit') asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: column
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testStringColumnWithNils [
	| column actual |
	column := #(nil 'ipsum' 'dolor' 'sit') asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: column
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testTimeColumn [
	| column expected actual |
	column := #('1:10' '2:30' '14:24' '00:00') asDataSeries.
	expected := (#('1:10 am' '2:30 am' '14:24 am' '00:00 am') collect: #asTime) asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]

{ #category : #tests }
DataFrameTypeDetectorTest >> testTimeColumnWithNils [
	| column expected actual |
	column := #('1:10' nil '14:24' nil) asDataSeries.
	expected := {'1:10 am' asTime. nil. '14:24 am' asTime. nil} asDataSeries.
	actual := detector detectColumnTypeAndConvert: column.
	self assert: actual equals: expected
]