-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathYY_PAO_MONEY_CHAPTER05.abap
141 lines (110 loc) · 3.33 KB
/
YY_PAO_MONEY_CHAPTER05.abap
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
*&---------------------------------------------------------------------*
*& The Money Example for Test-Driven Development in ABAP
*& based on TDD by Example: Part 1; Chapter 5
*&---------------------------------------------------------------------*
PROGRAM yy_pao_money_chapter05.
"" $5 + 10 CHF = $10 if rate is 2:1
"" Money rounding?
"" Equal null
"" Equal object
** 5 CHF * 2 = 10 CHF
*& Production Code
CLASS lcl_dollar DEFINITION.
PUBLIC SECTION.
METHODS:
constructor
IMPORTING iv_amount TYPE i,
times
IMPORTING iv_multiple TYPE i
RETURNING VALUE(ro_product) TYPE REF TO lcl_dollar,
equals
IMPORTING iv_data_object TYPE data
RETURNING VALUE(rv_result) TYPE abap_bool,
amount
RETURNING VALUE(rv_amount) TYPE i.
PRIVATE SECTION.
DATA:
mv_amount TYPE i.
ENDCLASS.
CLASS lcl_franc DEFINITION.
PUBLIC SECTION.
METHODS:
constructor
IMPORTING iv_amount TYPE i,
times
IMPORTING iv_multiple TYPE i
RETURNING VALUE(ro_product) TYPE REF TO lcl_franc,
equals
IMPORTING iv_data_object TYPE data
RETURNING VALUE(rv_result) TYPE abap_bool.
PROTECTED SECTION.
METHODS:
amount
RETURNING VALUE(rv_amount) TYPE i.
PRIVATE SECTION.
DATA:
mv_amount TYPE i.
ENDCLASS.
CLASS lcl_dollar IMPLEMENTATION.
METHOD constructor.
mv_amount = iv_amount.
ENDMETHOD.
METHOD times.
ro_product = NEW lcl_dollar( amount( ) * iv_multiple ).
ENDMETHOD.
METHOD equals.
DATA(lo_dollar) = CAST lcl_dollar( iv_data_object ).
rv_result = xsdbool( amount( ) = lo_dollar->amount( ) ).
ENDMETHOD.
METHOD amount.
rv_amount = mv_amount.
ENDMETHOD.
ENDCLASS.
CLASS lcl_franc IMPLEMENTATION.
METHOD constructor.
mv_amount = iv_amount.
ENDMETHOD.
METHOD times.
ro_product = NEW lcl_franc( amount( ) * iv_multiple ).
ENDMETHOD.
METHOD equals.
DATA(lo_franc) = CAST lcl_franc( iv_data_object ).
rv_result = xsdbool( amount( ) = lo_franc->amount( ) ).
ENDMETHOD.
METHOD amount.
rv_amount = mv_amount.
ENDMETHOD.
ENDCLASS.
*& Test Code
CLASS ltc_example DEFINITION
INHERITING FROM cl_aunit_assert
FOR TESTING RISK LEVEL HARMLESS.
PRIVATE SECTION.
METHODS:
multiplication FOR TESTING,
equality FOR TESTING,
franc_multiplication FOR TESTING.
ENDCLASS.
CLASS ltc_example IMPLEMENTATION.
METHOD multiplication.
DATA(lo_five) = NEW lcl_dollar( 5 ).
assert_equals( exp = abap_true
act = lo_five->times( 2 )->equals( NEW lcl_dollar( 10 ) ) ).
assert_equals( exp = abap_true
act = lo_five->times( 3 )->equals( NEW lcl_dollar( 15 ) ) ).
ENDMETHOD.
METHOD equality.
DATA(lo_test_double) = NEW lcl_dollar( 5 ).
assert_equals( exp = abap_true
act = lo_test_double->equals( NEW lcl_dollar( 5 ) ) ).
assert_equals( exp = abap_false
act = lo_test_double->equals( NEW lcl_dollar( 6 ) ) ).
ENDMETHOD.
METHOD franc_multiplication.
DATA(lo_five) = NEW lcl_franc( 5 ).
assert_equals( exp = abap_true
act = lo_five->times( 2 )->equals( NEW lcl_franc( 10 ) ) ).
assert_equals( exp = abap_true
act = lo_five->times( 3 )->equals( NEW lcl_franc( 15 ) ) ).
ENDMETHOD.
ENDCLASS.