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65 lines
1.7 KiB
Smalltalk
65 lines
1.7 KiB
Smalltalk
Koan subclass: TestBasic [
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<comment: 'A collection of introductory tests.'>
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testDeclarationAndAssignment [
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| declaration anotherDeclaration |
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"You must declare variables before using them."
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"Variables are separated by a single space."
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declaration _ 1. "Squeak Smalltalk way to assign value"
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anotherDeclaration := 'string'. "typical way to assign value
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(this will be used throughout the koans)"
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self expect: fillMeIn toEqual: declaration.
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self expect: fillMeIn toEqual: anotherDeclaration.
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]
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testEqualSignIsNotAnAssignmentOperator [
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| variableA variableB value |
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variableA := variableB := 1234. "multiple assignments work"
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value := variableA = variableB. "equal is not used for assignment"
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self expect: fillMeIn toEqual: (variableA = variableB).
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"#== is a message that checks if identity is equal. More about messages in the TestMessage koan."
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]
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testMultipleStatementsInASingleLine [
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| variableA variableB variableC |
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"Multiple statements are separated by periods."
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variableA := 1. variableB := 2. variableC := 3.
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self expect: fillMeIn toEqual: variableA.
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self expect: fillMeIn toEqual: variableB.
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self expect: fillMeIn toEqual: variableC.
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]
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testInequality [
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self expect: fillMeIn toEqual: ('hello' ~= 'world').
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"#~~ is a message that checks if identity is not equal. More about messages in the TestMessage koan."
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]
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testLogicalOr [
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| expression |
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expression := (3 > 4) | (5 < 6).
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self expect: fillMeIn toEqual: expression.
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]
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testLogicalAnd [
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| expression |
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expression := (2 > 1) & ('a' < 'b').
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self expect: fillMeIn toEqual: expression.
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]
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testNot [
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self expect: fillMeIn toEqual: true not.
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]
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]
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