@@ -6,7 +6,7 @@ const getAngleType = require("../implement/1-get-angle-type");
66// including boundary and invalid cases.
77
88// Case 1: Acute angles
9- test ( "should return 'Acute angle' when (0 < angle < 90) " , ( ) => {
9+ test ( "should return 'Acute angle' when angle ∈ ]0, 90[ " , ( ) => {
1010 expect ( getAngleType ( 1 ) ) . toEqual ( "Acute angle" ) ;
1111 expect ( getAngleType ( 45 ) ) . toEqual ( "Acute angle" ) ;
1212 expect ( getAngleType ( 89 ) ) . toEqual ( "Acute angle" ) ;
@@ -18,7 +18,7 @@ test("should return 'Right angle' when angle is 90", () => {
1818} ) ;
1919
2020// Case 3: Obtuse angles
21- test ( "should return 'Obtuse angle' when (90 < angle < 180) " , ( ) => {
21+ test ( "should return 'Obtuse angle' when angle ∈ ]90, 180[ " , ( ) => {
2222 expect ( getAngleType ( 91 ) ) . toEqual ( "Obtuse angle" ) ;
2323 expect ( getAngleType ( 135 ) ) . toEqual ( "Obtuse angle" ) ;
2424 expect ( getAngleType ( 179 ) ) . toEqual ( "Obtuse angle" ) ;
@@ -30,16 +30,15 @@ test("should return 'Straight angle' when angle is 180", () => {
3030} ) ;
3131
3232// Case 5: Reflex angles
33- test ( "should return 'Reflex angle' when (180 < angle < 360) " , ( ) => {
33+ test ( "should return 'Reflex angle' when angle ∈ ]180, 360[ " , ( ) => {
3434 expect ( getAngleType ( 181 ) ) . toEqual ( "Reflex angle" ) ;
3535 expect ( getAngleType ( 270 ) ) . toEqual ( "Reflex angle" ) ;
3636 expect ( getAngleType ( 359 ) ) . toEqual ( "Reflex angle" ) ;
3737} ) ;
3838
3939// Case 6: Invalid angles
40- test ( "should return 'Invalid angle' when angle is < 0, >= 360, or not a number " , ( ) => {
40+ test ( "should return 'Invalid angle' when angle is < 0 or >= 360" , ( ) => {
4141 expect ( getAngleType ( - 1 ) ) . toEqual ( "Invalid angle" ) ;
4242 expect ( getAngleType ( 360 ) ) . toEqual ( "Invalid angle" ) ;
4343 expect ( getAngleType ( 400 ) ) . toEqual ( "Invalid angle" ) ;
44- expect ( getAngleType ( "invalid" ) ) . toEqual ( "Invalid angle" ) ;
4544} ) ;
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