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Overview
| Comment: | Add requirements test cases for determining when an expression is true and when it is false. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
838654e56304a5788ac384ca506c1938 |
| User & Date: | drh 2013-11-26 22:46:54 |
Context
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2013-11-26
| ||
| 23:27 | Make sure the update hook is not invoked for WITHOUT ROWID tables, as the documentation specifies. This bug was found while adding requirements marks, so a few extraneous requirements marks are included in this check-in. (check-in: 0978bac6 user: drh tags: trunk) | |
| 22:46 | Add requirements test cases for determining when an expression is true and when it is false. (check-in: 838654e5 user: drh tags: trunk) | |
| 21:18 | Changing the CAST behavior of REAL values actually changed a documented requirement. So we also have to change the requirement evidence text to match. (check-in: d84aa44e user: drh tags: trunk) | |
Changes
Changes to test/e_expr.test.
1844 1844 # 1845 1845 foreach {tn expr} { 1846 1846 1 { ( SELECT x FROM t4 WHERE x>3 ORDER BY x ) } 1847 1847 2 { ( SELECT x FROM t4 WHERE y<'one' ORDER BY y ) } 1848 1848 } { 1849 1849 do_expr_test e_expr-36.4.$tn $expr null {} 1850 1850 } 1851 + 1852 +# EVIDENCE-OF: R-62477-06476 For example, the values NULL, 0.0, 0, 1853 +# 'english' and '0' are all considered to be false. 1854 +# 1855 +do_execsql_test e_expr-37.1 { 1856 + SELECT CASE WHEN NULL THEN 'true' ELSE 'false' END; 1857 +} {false} 1858 +do_execsql_test e_expr-37.2 { 1859 + SELECT CASE WHEN 0.0 THEN 'true' ELSE 'false' END; 1860 +} {false} 1861 +do_execsql_test e_expr-37.3 { 1862 + SELECT CASE WHEN 0 THEN 'true' ELSE 'false' END; 1863 +} {false} 1864 +do_execsql_test e_expr-37.4 { 1865 + SELECT CASE WHEN 'engligh' THEN 'true' ELSE 'false' END; 1866 +} {false} 1867 +do_execsql_test e_expr-37.5 { 1868 + SELECT CASE WHEN '0' THEN 'true' ELSE 'false' END; 1869 +} {false} 1870 + 1871 +# EVIDENCE-OF: R-55532-10108 Values 1, 1.0, 0.1, -0.1 and '1english' are 1872 +# considered to be true. 1873 +# 1874 +do_execsql_test e_expr-37.6 { 1875 + SELECT CASE WHEN 1 THEN 'true' ELSE 'false' END; 1876 +} {true} 1877 +do_execsql_test e_expr-37.7 { 1878 + SELECT CASE WHEN 1.0 THEN 'true' ELSE 'false' END; 1879 +} {true} 1880 +do_execsql_test e_expr-37.8 { 1881 + SELECT CASE WHEN 0.1 THEN 'true' ELSE 'false' END; 1882 +} {true} 1883 +do_execsql_test e_expr-37.9 { 1884 + SELECT CASE WHEN -0.1 THEN 'true' ELSE 'false' END; 1885 +} {true} 1886 +do_execsql_test e_expr-37.10 { 1887 + SELECT CASE WHEN '1english' THEN 'true' ELSE 'false' END; 1888 +} {true} 1851 1889 1852 1890 1853 1891 finish_test