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Diffstat (limited to 'tests')
| -rwxr-xr-x | tests/expr.test | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tests/expr.test b/tests/expr.test index c95d0301..69e4bc4d 100755 --- a/tests/expr.test +++ b/tests/expr.test @@ -17,5 +17,38 @@ testing "% * same priority" "expr 3 % 2 \* 4" "4\n" "" "" testing "* % same priority" "expr 3 \* 2 % 4" "2\n" "" "" testing "= > same priority" "expr 0 = 2 \> 3" "0\n" "" "" testing "> = same priority" "expr 3 \> 2 = 1" "1\n" "" "" + +testing "/ by zero" "expr 1 / 0; echo \$?" "2\n" "" "" +testing "% by zero" "expr 1 % 0; echo \$?" "2\n" "" "" + +testing "regex position" "expr ab21xx : '[^0-9]*[0-9]*'" "4\n" "" "" +testing "regex extraction" "expr ab21xx : '[^0-9]*\([0-9]*\).*'" "21\n" "" "" +testing "regex no match" "expr ab21xx : x" "0\n" "" "" + +# result of ':' regex match can subsequently be used for arithmetic testing "string becomes integer" "expr ab21xx : '[^0-9]*\([0-9]*\)' + 3" \ "24\n" "" "" + +testing "integer comparison" "expr -3 \< -2" "1\n" "" "" +testing "string comparison" "expr -3 \< -2s" "0\n" "" "" +testing "integer expr comparison" "expr 2 - 5 \< -2" "1\n" "" "" +# result of arithmetic can subsequently be compared as a string +testing "string expr comparison" "expr 2 - 5 \< -2s" "0\n" "" "" + +testing "parens around literal" "expr \( a \)" "a\n" "" "" + +testing "exit code when true" "expr a; echo \$?" "a\n0\n" "" "" +testing "exit code when false" "expr 0; echo \$?" "0\n1\n" "" "" +testing "exit code with syntax error" "expr \(; echo \$?" "2\n" "" "" +testing "exit code when evaluating to 0" "expr -1 + 1; echo \$?" "0\n1\n" "" "" + +# BUG: segfaults because '3' is coerced to integer and regexc gets NULL +testing "regex segfault" "expr 3 : '\(.\)'" "3\n" "" "" + +# syntax errors +testing "no expression" "expr; echo \$?" "2\n" "" "" +testing "empty ()" "expr \( \); echo \$?" "2\n" "" "" +testing "missing )" "expr \( 1; echo \$?" "2\n" "" "" +testing "missing outer )" "expr \( 1 + \( 2 \* 3 \); echo \$?" "2\n" "" "" +testing "bad operator" "expr 1 @ 2; echo \$?" "2\n" "" "" +testing "adjacent literals" "expr 1 2; echo \$?" "2\n" "" "" |