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jasmine_assertions.javascript.txt
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jasmine_assertions.javascript.txt
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οοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοο οοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοο
οοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοο JASMINE ASSERTIONS οοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοο
οοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοο οοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοοο
ALTERNATIVES ==> #See chai
VERSION ==> #Part of Jasmine (see its doc)
#Generic assertions
/=+===============================+=\
/ : : \
)==: CONFIG :==(
\ :_______________________________: /
\=+===============================+=/
--fail-spec-with-no-expectations
CONF.failSpecWithNoExpectations #BOOL (def: false). Do not allow tests with no assertions
JASMINE.debugLog(STR) #Like console.log() if test succeeds, console.trace() if fails
/=+===============================+=\
/ : : \
)==: GENERIC :==(
\ :_______________________________: /
\=+===============================+=/
expect(VAL) #EXPECT
EXPECT.withContext('MESSAGE') #Add ': MESSAGE' to error message
throwUnless[Async](VAL) #Like expect[Async](VAL) but throws directly
#Meant for integration with other libraries like `testing-library`
EXPECT.not... #Invert assertion
EXPECT.nothing() #Noop
EXPECT.toBe(VAL2) #=== VAL2
EXPECT.toEqual(VAL2) #== VAL2
#For OBJ, compare own enumerated by copy
/=+===============================+=\
/ : : \
)==: NULL|UNDEFINED :==(
\ :_______________________________: /
\=+===============================+=/
EXPECT.toBeDefined|Undefined() #=== undefined
EXPECT.toBeNull() #=== null
/=+===============================+=\
/ : : \
)==: BOOLEAN :==(
\ :_______________________________: /
\=+===============================+=/
EXPECT_BOOL.toBeTruthy|Falsy() #== true|false
EXPECT_BOOL.toBeTrue|False() #=== true|false
/=+===============================+=\
/ : : \
)==: NUMBER :==(
\ :_______________________________: /
\=+===============================+=/
EXPECT_NUM.toBeNaN() #Object.is(NaN)
EXPECT_NUM.toBePositive|NegativeInfinity() #=== Infinity|-Infinity
EXPECT_NUM.toBeLess|GreaterThan[OrEqual](NUM) #< > <= >= NUM
EXPECT_NUM.toBeCloseTo(NUM[, NUM2]) #== Math.round(NUM, NUM2)
#Def NUM2: 2
/=+===============================+=\
/ : : \
)==: STRING :==(
\ :_______________________________: /
\=+===============================+=/
EXPECT_STR.toHaveSize(NUM) #
EXPECT_STR.toMatch(REGEXP) #REGEXP.test(STR)
EXPECT_STR.toContain(STR2) #Is substring
/=+===============================+=\
/ : : \
)==: ARRAY|OBJECT :==(
\ :_______________________________: /
\=+===============================+=/
EXPECT_ARR|OBJ|[WEAK]MAP|SET|DATAVIEW.
toHaveSize(NUM) #
EXPECT_ARR.toContain(VAL) #Any ARR element deep equal
EXPECT_OBJ.toBeInstanceOf(FUNC) #instanceof
/=+===============================+=\
/ : : \
)==: FUNCTION :==(
\ :_______________________________: /
\=+===============================+=/
EXPECT_FUNC.toThrow() #
EXPECT_FUNC.toThrow(VAL) #Using toEqual()
EXPECT_FUNC.toThrowError([TYPE], [STR|REGEXP]) #Def TYPE is Error
EXPECT_FUNC.toThrowMatching
(FUNC(ERROR)->BOOL) #
/=+===============================+=\
/ : : \
)==: PROMISE :==(
\ :_______________________________: /
\=+===============================+=/
expectAsync(PROMISE).toBePending( ) #PROMISE not resolved|rejected
expectAsync(PROMISE).toBeResolved() #PROMISE resolved
expectAsync(PROMISE).toBeResolvedTo(VAL) #PROMISE resolved with VAL (deep equal)
expectAsync(PROMISE).toBeRejected() #PROMISE rejected
expectAsync(PROMISE).toBeRejectedWith(VAL) #PROMISE rejected with VAL (deep equal)
expectAsync(PROMISE).toBeRejectedWithError
(ERROR[, MESSAGE_REGEXP|STR]) #PROMISE rejected with ERROR with that ERROR.message
expectAsync(PROMISE).already.* #Same as expectAsync(PROMISE).* but fails if PROMISE still pending
/=+===============================+=\
/ : : \
)==: DEEP ASSERTION :==(
\ :_______________________________: /
\=+===============================+=/
DEEP ASSERTIONS ==> #Assertions that can either be used:
# - top-level, e.g. EXPECT.toEqual(JASMINE.any(TYPE))
# - nested level, e.g. EXPECT.toEqual({ ..., VAR: JASMINE.any(TYPE) })
JASMINE.addCustomObjectFormatter(FUNC(VAL)->STR)#Customize key used in deep equal
EXPECT.toEqual #FUNC(VAL)->BOOL
({ asymmetricMatch: FUNC, ... }) #`this` is { ... } (must not use arrow functions)
#Can also do the reverse (i.e. assymetricMatch(...) on the expected value) but not both.
EXPECT.toEqual(JASMINE.is(VAL)) #===
EXPECT.toEqual(JASMINE.anything()) #!== undefined|null
EXPECT.toEqual(JASMINE.any(TYPE)) #instanceof TYPE
EXPECT_BOOL.toEqual(JASMINE.falsy|truthy()) #== false|true
EXPECT_STR.toEqual
(JASMINE.stringMatching(REGEXP|'REGEXP')) #REGEXP.test(STR)
EXPECT_STR.toEqual
(JASMINE.stringContaining(STR)) #STR2.includes(STR)
EXPECT_STR.toEqual(JASMINE.[not]empty()) #=== ''
EXPECT_ARR.toEqual(JASMIN.arrayContaining(ARR2))#ARR2 is a subset of ARR (using toEqual())
#Duplicates are removed. Order does not matter.
EXPECT_ARR.toEqual #ARR2 has exact same elements as ARR (using toEqual())
(JASMINE.arrayWithExactContents(ARR2)) #Order does not matter.
EXPECT_OBJ.toEqual(JASMN.objectContaining(OBJ2))#OBJ2 is a subset of OBJ (using toEqual())
EXPECT_MAP.toEqual(JASMINE.mapContaining(MAP2)) #Same for MAP
EXPECT_SET.toEqual(JASMINE.setContaining(SET2)) #Same for SET
EXPECT_OBJ|ARR.toEqual(JASMINE.[not]empty()) #=== {}|[]
/=+===============================+=\
/ : : \
)==: HTML :==(
\ :_______________________________: /
\=+===============================+=/
EXPECT_ELEM.toHaveClass('CLASS') #Check HTML class
/=+===============================+=\
/ : : \
)==: EXTENSIONS :==(
\ :_______________________________: /
\=+===============================+=/
JASMINE.addCustomEqualityTester #Will be used in toEqual(), providing it does not return undefined.
(FUNC(VAL, VAL2)->BOOL|undefined) #Must be done in beforeAll()
MATCHER #FUNC(UTIL, TESTERS)->OBJ:
# - compare(VAL[, ARG...])->OBJ2:
# - pass BOOL
# - message STR:
# - "Expected VAL [not] to be ..."
# - def. ...: use CUSTOM by adding space between camelcase
# - must be set even if pass true, but using "not"
# - negativeCompare(...):
# - same but used when "not" is used
# - def: just inverse pass BOOL
JASMINE.addMatchers({ CUSTOM: MATCHER ... }) #Add custom assertion EXPECT.CUSTOM([ARG...]):
#Must be in beforeAll()
JASMINE.addAsyncMatchers({CUSTOM: MATCHER ...}) #Same but compare|negativeCompare() can be async
UTIL.equals(VAL, VAL2, TESTERS)->BOOL #Like toEqual() (including using deep assertions)
UTIL.contains(ARR|STR, VAL|STR2, TESTERS)->BOOL #Like toContain()