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fish-shell/tests/math.in

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Implement support for bare vars by `math` This change allows you to type `math x + 3` rather than `math $x + 3`. Another step to resolving issue #3157.
2017-08-24 11:38:40 +08:00
logmsg Validate basic expressions
add floating point output to `math` command This makes it easy for the user to request floating point output with the desired number of digits after the decimal point (not to be confused with significant digits). Note that this is just a thin wrapper so someone can say `math -s3 10 / 3` rather than `math "scale=3; 10 /3"`. Resolves #1643
2016-05-03 11:53:48 +08:00
math 3 / 2
math 10/6
math -s0 10 / 6
Default math scale to 6 This changes the behavior of builtin math to floating point by default. If the result of a computation is an integer, then it will be printed as an integer; otherwise it will be printed as a floating point decimal with up to 'scale' digits past the decimal point (default is 6, matching printf). Trailing zeros are trimmed. Values are rounded following printf semantics. Fixes #4478
2018-07-24 15:00:06 +08:00
math 'floor(10 / 6)'
add floating point output to `math` command This makes it easy for the user to request floating point output with the desired number of digits after the decimal point (not to be confused with significant digits). Note that this is just a thin wrapper so someone can say `math -s3 10 / 3` rather than `math "scale=3; 10 /3"`. Resolves #1643
2016-05-03 11:53:48 +08:00
math -s3 10/6
math '10 % 6'
math -s0 '10 % 6'
math '23 % 7'
fix `math` regression The previous change to use `argparse` for parity with every other builtin and function introduced a regression. Invocations that start with a negative number can fail because the negative value looks like an invalid flag.
2017-07-15 07:03:31 +08:00
math --scale=6 '5 / 3 * 0.3'
math: Allow --scale=max
2019-02-13 19:54:19 +08:00
math --scale=max '5 / 3'
Make builtin `math` the default implementation Remove our `math` function that wraps `bc`. Our math builtin is now good enough that it can be the default implementation. Another step in resolving #3157.
2017-08-24 08:32:49 +08:00
math "7^2"
fix `math` regression The previous change to use `argparse` for parity with every other builtin and function introduced a regression. Invocations that start with a negative number can fail because the negative value looks like an invalid flag.
2017-07-15 07:03:31 +08:00
math -1 + 1
math '-2 * -2'
math 5 \* -2
math -- -4 / 2
math -- '-4 * 2'
Implement support for bare vars by `math` This change allows you to type `math x + 3` rather than `math $x + 3`. Another step to resolving issue #3157.
2017-08-24 11:38:40 +08:00
Add 'round' function to builtin math
2018-12-02 05:25:00 +08:00
logmsg Validate some rounding functions
math 'round(3/2)' ; math 'floor(3/2)' ; math 'ceil(3/2)'
math 'round(-3/2)' ; math 'floor(-3/2)' ; math 'ceil(-3/2)'
Default math scale to 6 This changes the behavior of builtin math to floating point by default. If the result of a computation is an integer, then it will be printed as an integer; otherwise it will be printed as a floating point decimal with up to 'scale' digits past the decimal point (default is 6, matching printf). Trailing zeros are trimmed. Values are rounded following printf semantics. Fixes #4478
2018-07-24 15:00:06 +08:00
logmsg Validate some integral computations
math 1
math 10
math 100
math 1000
math '10^15'
math '-10^14'
math '-10^15'
math -s0 '1.0 / 2.0'
math -s0 '3.0 / 2.0'
math -s0 '10^15 / 2.0'
[math] Remove more bare variable support Prior to this fix, a "bare variable" in math like 'x + 1' would be looked up in the environment, i.e. equivalent to '$x + 1'. This appears to have been done for performance. However this breaks the orthogonality of fish; performance is not a sufficient justification to give math this level of built-in power, especially because the performance of math is not a bottleneck. The implementation is also ugly. Remove this feature so that variables must be prefixed with the dollar sign and undergo normal variable expansion. Reading 'git grep' output does not show any uses of this in fish functions or completions. Also added to changelog. Fixes #4393
2017-12-18 04:31:39 +08:00
logmsg Validate how variables in an expression are handled
math $x + 1
Implement support for bare vars by `math` This change allows you to type `math x + 3` rather than `math $x + 3`. Another step to resolving issue #3157.
2017-08-24 11:38:40 +08:00
set x 1
[math] Remove more bare variable support Prior to this fix, a "bare variable" in math like 'x + 1' would be looked up in the environment, i.e. equivalent to '$x + 1'. This appears to have been done for performance. However this breaks the orthogonality of fish; performance is not a sufficient justification to give math this level of built-in power, especially because the performance of math is not a bottleneck. The implementation is also ugly. Remove this feature so that variables must be prefixed with the dollar sign and undergo normal variable expansion. Reading 'git grep' output does not show any uses of this in fish functions or completions. Also added to changelog. Fixes #4393
2017-12-18 04:31:39 +08:00
math $x + 1
Implement support for bare vars by `math` This change allows you to type `math x + 3` rather than `math $x + 3`. Another step to resolving issue #3157.
2017-08-24 11:38:40 +08:00
set x 3
set y 1.5
[math] Remove more bare variable support Prior to this fix, a "bare variable" in math like 'x + 1' would be looked up in the environment, i.e. equivalent to '$x + 1'. This appears to have been done for performance. However this breaks the orthogonality of fish; performance is not a sufficient justification to give math this level of built-in power, especially because the performance of math is not a bottleneck. The implementation is also ugly. Remove this feature so that variables must be prefixed with the dollar sign and undergo normal variable expansion. Reading 'git grep' output does not show any uses of this in fish functions or completions. Also added to changelog. Fixes #4393
2017-12-18 04:31:39 +08:00
math "-$x * $y"
Default math scale to 6 This changes the behavior of builtin math to floating point by default. If the result of a computation is an integer, then it will be printed as an integer; otherwise it will be printed as a floating point decimal with up to 'scale' digits past the decimal point (default is 6, matching printf). Trailing zeros are trimmed. Values are rounded following printf semantics. Fixes #4478
2018-07-24 15:00:06 +08:00
math -s0 "-$x * $y"
Add some math tests for invalid inputs
2017-11-25 15:04:44 +08:00
logmsg Validate math error reporting
[math] Adjust tests for new error reporting This shows how it's still weird - "2 - " and "max()" return the same error.
2018-02-26 18:25:35 +08:00
not math '2 - '
not math 'ncr(1)'
Add some math tests for invalid inputs
2017-11-25 15:04:44 +08:00
not math 'max()'
[math] Adjust tests for new error reporting This shows how it's still weird - "2 - " and "max()" return the same error.
2018-02-26 18:25:35 +08:00
not math 'sin()'
[math] Better error for `2 + 2 4` This now reports "TOO_MANY_ARGS" instead of no error (and triggering an assertion). We might want to add a new error type or report the missing operator before, but this is okay for now.
2018-02-26 21:00:29 +08:00
not math '2 + 2 4'
[math] Fail without arguments See #4768.
2018-03-02 05:27:24 +08:00
not math
not math -s 12
Default math scale to 6 This changes the behavior of builtin math to floating point by default. If the result of a computation is an integer, then it will be printed as an integer; otherwise it will be printed as a floating point decimal with up to 'scale' digits past the decimal point (default is 6, matching printf). Trailing zeros are trimmed. Values are rounded following printf semantics. Fixes #4478
2018-07-24 15:00:06 +08:00
not math 2^999999
[math] Add tests for runtime errors And fix "isinfinite" - it's called "isinf".
2018-03-08 01:13:26 +08:00
not math 1 / 0
math: Allow "x" for multiplication It's always a bit annoying that `*` requires quoting. So we allow "x" as an alternative, only it needs to be followed by whitespace to distinguish it from "0x" hexadecimal notation.
2019-05-30 22:00:45 +08:00
logmsg Validate "x" as multiplier
math 0x2 # Hex
math 5 x 4
math 2x 4
math 2 x4 # ERROR
math 0x 3
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