| 1 | // RUN: %clang_analyze_cc1 -w -analyzer-checker=core.DivideZero -analyzer-output=text -verify %s |
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| 2 | |
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| 3 | // This test file verifies the "Assuming..." diagnostic pieces that are being |
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| 4 | // reported when the branch condition was too complicated to explain. |
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| 5 | // Therefore, if your change replaces the generic "Assuming the condition is |
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| 6 | // true" with a more specific message, causing this test to fail, the condition |
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| 7 | // should be replaced with a more complicated condition that we still cannot |
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| 8 | // properly explain to the user. Once we reach the point at which all conditions |
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| 9 | // are "diagnosable", this test (or this note) should probably be removed, |
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| 10 | // together with the code section that handles generic messages for |
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| 11 | // non-diagnosable conditions. |
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| 12 | |
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| 13 | // Function calls are currently non-diagnosable. |
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| 14 | int non_diagnosable(); |
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| 15 | |
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| 16 | void test_true() { |
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| 17 | if (non_diagnosable()) { |
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| 18 | // expected-note@-1{{Assuming the condition is true}} |
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| 19 | // expected-note@-2{{Taking true branch}} |
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| 20 | 1 / 0; |
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| 21 | // expected-warning@-1{{Division by zero}} |
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| 22 | // expected-note@-2{{Division by zero}} |
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| 23 | } |
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| 24 | } |
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| 25 | |
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| 26 | void test_false() { |
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| 27 | if (non_diagnosable()) { |
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| 28 | // expected-note@-1{{Assuming the condition is false}} |
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| 29 | // expected-note@-2{{Taking false branch}} |
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| 30 | } else { |
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| 31 | 1 / 0; |
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| 32 | // expected-warning@-1{{Division by zero}} |
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| 33 | // expected-note@-2{{Division by zero}} |
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| 34 | } |
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| 35 | } |
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| 36 | |
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| 37 | // Test that we're still reporting that the condition is true, |
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| 38 | // when we encounter an exclamation mark (used to be broken). |
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| 39 | void test_exclamation_mark() { |
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| 40 | if (!non_diagnosable()) { |
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| 41 | // expected-note@-1{{Assuming the condition is true}} |
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| 42 | // expected-note@-2{{Taking true branch}} |
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| 43 | 1 / 0; |
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| 44 | // expected-warning@-1{{Division by zero}} |
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| 45 | // expected-note@-2{{Division by zero}} |
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| 46 | } |
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| 47 | } |
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| 48 | |
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