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annotate test_ltpda_connection_manager.m @ 0:d5fef23867bb

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First workig implementation.
author Daniele Nicolodi <daniele@science.unitn.it>
date Sun, 23 May 2010 10:51:35 +0200
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d5fef23867bb First workig implementation.
Daniele Nicolodi <daniele@science.unitn.it>
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1 function test_ltpda_connection_manager()
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2
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3 % change with valid credentials
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4 host = '127.0.0.1'; % sometimes using localhost causes problems
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5 db = 'one';
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6 user = 'daniele';
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7 passwd = 'daniele';
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8
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9 % hack user properties
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10 p = getappdata(0, 'LTPDApreferences');
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11 p.cm.credentialsExpiry = 120; % seconds
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12 p.cm.cachePassword = 2; % 0=no 1=yes 2=ask
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13 p.cm.maxConnectionsNumber = 10;
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14 setappdata(0, 'LTPDApreferences', p);
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15
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16
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17 % reset
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18 setappdata(0, 'LTPDAConnectionManager', []);
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19 % connection manager
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20 cm = LTPDAConnectionManager();
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21
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22
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23 % add credentials
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24 n = numel(cm.credentials);
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25 cm.add(credentials(host, 'db', 'user', 'passwd'));
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26 assert(numel(cm.credentials) == n+1);
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27
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28 % try again
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29 cm.add(credentials(host, 'db', 'user', 'passwd'));
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30 % just updated previous entry
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31 assert(numel(cm.credentials) == n+1);
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32
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33 % add other credentials
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34 cm.add(credentials('host', 'db'));
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35 assert(numel(cm.credentials) == n+2);
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36
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37 % add user
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38 cm.add(credentials('host', 'db', 'user'));
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39 assert(numel(cm.credentials) == n+2);
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40
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41 % add password
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42 cm.add(credentials('host', 'db', 'user', 'passwd'));
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43 assert(numel(cm.credentials) == n+2);
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44
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45 % add the oned will be used now on
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46 cm.add(credentials(host, db, user, passwd));
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47 assert(numel(cm.credentials) == n+3);
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48
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49
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50 % use the credentials cache
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51 c = cm.connect(host, db);
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52 % one connection in the pool
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53 assert(cm.count() == 1);
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54 c.close();
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55 % still there
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56 assert(numel(cm.connections) == 1);
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57 n = cm.count();
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58 % count has the side effect of removing closed connections from the pool
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59 assert(n == 0);
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60
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61 % open two connections
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62 c1 = cm.connect(host, db);
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63 c2 = cm.connect(host, db, user);
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64 % one connection in the pool
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65 assert(numel(cm.connections) == 2);
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66 % even when we remove the closed ones
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67 assert(cm.count() == 2);
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68 % clean up
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69 c1.close();
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70 c2.close();
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71 % no more connections in the pool
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72 assert(cm.count() == 0);
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73 assert(numel(cm.connections) == 0);
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74
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75 % plist parameters
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76 c = cm.connect(plist('hostname', host, 'database', db));
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77 % one more connection in the pool
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78 assert(numel(cm.connections) == 1);
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79 % clen up
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80 c.close();
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81
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82 % create a connection
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83 c1 = cm.connect(host, db);
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84 n = cm.count();
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85 % specify it as connction parameter
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86 c2 = cm.connect(plist('connection', c1));
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87 % we should get back the same connection
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88 assert(c2 == c1);
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89 % it should not have been added to the connection pool
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90 assert(numel(cm.connections) == n);
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91 % clean up
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92 c1.close();
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93
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94 % no connections in the pool
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95 assert(cm.count() == 0);
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96 assert(numel(cm.connections) == 0);
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97
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98 % open a bunch of connections
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99 c = cm.connect(host, db);
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100 c = cm.connect(host, db);
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101 c = cm.connect(host, db);
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102 c = cm.connect(host, db);
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103 c = cm.connect(host, db);
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104 assert(numel(cm.connections) == 5);
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105 assert(cm.count() == 5);
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106 % close them all
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107 cm.close();
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108 % check
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109 assert(cm.count() == 0);
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110
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111 end