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5 | 5 |
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6 | 6 | import java.util.List; |
7 | 7 |
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8 | | -public class LoadersAndSaversExamplesTest { |
9 | | - public static class Step0 { |
10 | | - // begin-snippet: step0 |
11 | | - @Test |
12 | | - public void senior_customer_list_includes_only_those_over_age_65() { |
13 | | - DataBase database = initializeDatabase(); |
14 | | - MailServer mailServer = initializeMailServer(); |
15 | | - sendOutSeniorDiscounts(database, mailServer); |
16 | | - Approvals.verifyAll("", mailServer.getRecipients()); |
17 | | - } |
18 | | - // end-snippet |
19 | | - |
20 | | - private MailServer initializeMailServer() { |
21 | | - return new MailServer(); |
22 | | - } |
23 | | - |
24 | | - private DataBase initializeDatabase() { |
25 | | - return null; |
26 | | - } |
27 | | - |
28 | | - private void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) { |
29 | | - |
30 | | - } |
| 8 | +public class LoadersAndSaversExamplesTest |
| 9 | +{ |
| 10 | + public static class Step0 |
| 11 | + { |
| 12 | + // begin-snippet: step0 |
| 13 | + @Test |
| 14 | + public void senior_customer_list_includes_only_those_over_age_65() |
| 15 | + { |
| 16 | + DataBase database = initializeDatabase(); |
| 17 | + MailServer mailServer = initializeMailServer(); |
| 18 | + sendOutSeniorDiscounts(database, mailServer); |
| 19 | + Approvals.verifyAll("", mailServer.getRecipients()); |
31 | 20 | } |
32 | | - |
33 | | - public static class Step0_5 { |
34 | | - @Test |
35 | | - void test_dump_data() { |
36 | | - MyDatabase database = new MyDatabase(); |
37 | | - // begin-snippet: step_capture_data |
38 | | - List<Customer> seniorCustomers = database.getSeniorCustomers(); |
39 | | - seniorCustomers.stream().forEach(System.out::println); |
40 | | - // end-snippet |
41 | | - Approvals.verifyAll("", seniorCustomers, c -> c.toString()); |
42 | | - } |
43 | | - public static class MyDatabase { |
44 | | - public List<Customer> getSeniorCustomers() { |
45 | | - return |
46 | | - // begin-snippet: step_fake_data |
47 | | - List.of( |
48 | | - new Customer( "Bob, Jones, 123 Elm St., Tempe, AZ, 14-MAR-1958"), |
49 | | - new Customer("Mary, Smith, 345 Oak St., Mason, VA, 04-MAY-1944")); |
50 | | - // end-snippet |
51 | | - } |
52 | | - } |
| 21 | + // end-snippet |
| 22 | + private MailServer initializeMailServer() |
| 23 | + { |
| 24 | + return new MailServer(); |
53 | 25 | } |
54 | | - |
55 | | - class Step1 { |
56 | | - // begin-snippet: step1 |
57 | | - public void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) { |
58 | | - List<Customer> seniorCustomers = database.getSeniorCustomers(); |
59 | | - for (Customer customer : seniorCustomers) { |
60 | | - Discount seniorDiscount = getSeniorDiscount(); |
61 | | - String message = generateDiscountMessage(customer, seniorDiscount); |
62 | | - mailServer.sendMessage(customer, message); |
63 | | - } |
64 | | - } |
65 | | - // end-snippet |
| 26 | + private DataBase initializeDatabase() |
| 27 | + { |
| 28 | + return null; |
66 | 29 | } |
67 | | - |
68 | | - class Step2 { |
69 | | - // begin-snippet: step2 |
70 | | - public void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) { |
71 | | - Loader<List<Customer>> seniorCustomerLoader = () -> database.getSeniorCustomers(); |
72 | | - List<Customer> seniorCustomers = seniorCustomerLoader.load(); |
73 | | - for (Customer customer : seniorCustomers) { |
74 | | - Discount seniorDiscount = getSeniorDiscount(); |
75 | | - String message = generateDiscountMessage(customer, seniorDiscount); |
76 | | - mailServer.sendMessage(customer, message); |
77 | | - } |
78 | | - } |
79 | | - // end-snippet |
| 30 | + private void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) |
| 31 | + { |
80 | 32 | } |
81 | | - |
82 | | - class Step3 { |
83 | | - // begin-snippet: step3 |
84 | | - public void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) { |
85 | | - sendOutSeniorDiscounts(mailServer, database::getSeniorCustomers); // + |
86 | | - } // + |
87 | | - |
88 | | - // + |
89 | | - public void sendOutSeniorDiscounts(MailServer mailServer, Loader<List<Customer>> seniorCustomerLoader) { // + |
90 | | - List<Customer> seniorCustomers = seniorCustomerLoader.load(); |
91 | | - for (Customer customer : seniorCustomers) { |
92 | | - Discount seniorDiscount = getSeniorDiscount(); |
93 | | - String message = generateDiscountMessage(customer, seniorDiscount); |
94 | | - mailServer.sendMessage(customer, message); |
95 | | - } |
96 | | - } |
| 33 | + } |
| 34 | + public static class Step0_5 |
| 35 | + { |
| 36 | + @Test |
| 37 | + void test_dump_data() |
| 38 | + { |
| 39 | + MyDatabase database = new MyDatabase(); |
| 40 | + // begin-snippet: step_capture_data |
| 41 | + List<Customer> seniorCustomers = database.getSeniorCustomers(); |
| 42 | + seniorCustomers.stream().forEach(System.out::println); |
| 43 | + // end-snippet |
| 44 | + Approvals.verifyAll("", seniorCustomers, c -> c.toString()); |
| 45 | + } |
| 46 | + public static class MyDatabase |
| 47 | + { |
| 48 | + public List<Customer> getSeniorCustomers() |
| 49 | + { |
| 50 | + return |
| 51 | + // begin-snippet: step_fake_data |
| 52 | + List.of(new Customer("Bob, Jones, 123 Elm St., Tempe, AZ, 14-MAR-1958"), |
| 53 | + new Customer("Mary, Smith, 345 Oak St., Mason, VA, 04-MAY-1944")); |
97 | 54 | // end-snippet |
| 55 | + } |
98 | 56 | } |
99 | | - |
100 | | - private String generateDiscountMessage(Customer customer, Discount seniorDiscount) { |
101 | | - return null; |
| 57 | + } |
| 58 | + class Step1 |
| 59 | + { |
| 60 | + // begin-snippet: step1 |
| 61 | + public void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) |
| 62 | + { |
| 63 | + List<Customer> seniorCustomers = database.getSeniorCustomers(); |
| 64 | + for (Customer customer : seniorCustomers) |
| 65 | + { |
| 66 | + Discount seniorDiscount = getSeniorDiscount(); |
| 67 | + String message = generateDiscountMessage(customer, seniorDiscount); |
| 68 | + mailServer.sendMessage(customer, message); |
| 69 | + } |
102 | 70 | } |
103 | | - |
104 | | - private Discount getSeniorDiscount() { |
105 | | - return null; |
| 71 | + // end-snippet |
| 72 | + } |
| 73 | + class Step2 |
| 74 | + { |
| 75 | + // begin-snippet: step2 |
| 76 | + public void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) |
| 77 | + { |
| 78 | + Loader<List<Customer>> seniorCustomerLoader = () -> database.getSeniorCustomers(); |
| 79 | + List<Customer> seniorCustomers = seniorCustomerLoader.load(); |
| 80 | + for (Customer customer : seniorCustomers) |
| 81 | + { |
| 82 | + Discount seniorDiscount = getSeniorDiscount(); |
| 83 | + String message = generateDiscountMessage(customer, seniorDiscount); |
| 84 | + mailServer.sendMessage(customer, message); |
| 85 | + } |
106 | 86 | } |
107 | | - |
108 | | - private class DataBase { |
109 | | - public List<Customer> getSeniorCustomers() { |
110 | | - return List.of(); |
111 | | - } |
| 87 | + // end-snippet |
| 88 | + } |
| 89 | + class Step3 |
| 90 | + { |
| 91 | + // begin-snippet: step3 |
| 92 | + public void sendOutSeniorDiscounts(DataBase database, MailServer mailServer) |
| 93 | + { |
| 94 | + sendOutSeniorDiscounts(mailServer, database::getSeniorCustomers); // + |
| 95 | + } // + |
| 96 | + // + |
| 97 | + public void sendOutSeniorDiscounts(MailServer mailServer, Loader<List<Customer>> seniorCustomerLoader) |
| 98 | + { // + |
| 99 | + List<Customer> seniorCustomers = seniorCustomerLoader.load(); |
| 100 | + for (Customer customer : seniorCustomers) |
| 101 | + { |
| 102 | + Discount seniorDiscount = getSeniorDiscount(); |
| 103 | + String message = generateDiscountMessage(customer, seniorDiscount); |
| 104 | + mailServer.sendMessage(customer, message); |
| 105 | + } |
112 | 106 | } |
113 | | - |
114 | | - private static class MailServer { |
115 | | - public void sendMessage(Customer customer, String message) { |
116 | | - } |
117 | | - |
118 | | - public String[] getRecipients() { |
119 | | - return new String[] {}; |
120 | | - } |
| 107 | + // end-snippet |
| 108 | + } |
| 109 | + private String generateDiscountMessage(Customer customer, Discount seniorDiscount) |
| 110 | + { |
| 111 | + return null; |
| 112 | + } |
| 113 | + private Discount getSeniorDiscount() |
| 114 | + { |
| 115 | + return null; |
| 116 | + } |
| 117 | + private class DataBase |
| 118 | + { |
| 119 | + public List<Customer> getSeniorCustomers() |
| 120 | + { |
| 121 | + return List.of(); |
121 | 122 | } |
122 | | - |
123 | | - private static class Customer { |
124 | | - private final String s; |
125 | | - |
126 | | - public Customer(String s) { |
127 | | - this.s = s; |
128 | | - } |
129 | | - |
130 | | - @Override |
131 | | - public String toString() { |
132 | | - return s; |
133 | | - } |
| 123 | + } |
| 124 | + private static class MailServer |
| 125 | + { |
| 126 | + public void sendMessage(Customer customer, String message) |
| 127 | + { |
134 | 128 | } |
135 | | - |
136 | | - private class Discount { |
| 129 | + public String[] getRecipients() |
| 130 | + { |
| 131 | + return new String[]{}; |
| 132 | + } |
| 133 | + } |
| 134 | + private static class Customer |
| 135 | + { |
| 136 | + private final String s; |
| 137 | + public Customer(String s) |
| 138 | + { |
| 139 | + this.s = s; |
| 140 | + } |
| 141 | + @Override |
| 142 | + public String toString() |
| 143 | + { |
| 144 | + return s; |
137 | 145 | } |
| 146 | + } |
| 147 | + private class Discount |
| 148 | + { |
| 149 | + } |
138 | 150 | } |
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