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Math median tests and documentation additions (#2018)
* Add math median example and unit tests * Update output of other all math ls command examples to keep consistent with math median output * Fix output of math max example * Update output of other math commands using pwd examples to keep data consistent
This commit is contained in:
Joseph T. Lyons
GitHub
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b0c30098e4
commit
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2 changed files with 63 additions and 22 deletions
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@ -35,7 +35,8 @@ impl WholeStreamCommand for Command {
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mod tests {
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use super::*;
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use crate::commands::math::{
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avg::average, max::maximum, min::minimum, sum::summation, utils::MathFunction,
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avg::average, max::maximum, median::median, min::minimum, sum::summation,
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utils::MathFunction,
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};
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use nu_plugin::test_helpers::value::{decimal, int};
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use nu_protocol::Value;
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@ -67,13 +68,25 @@ mod tests {
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description: "Single value",
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values: vec![int(10)],
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expected_err: None,
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expected_res: vec![Ok(decimal(10)), Ok(int(10)), Ok(int(10)), Ok(int(10))],
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expected_res: vec![
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Ok(decimal(10)),
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Ok(int(10)),
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Ok(int(10)),
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Ok(int(10)),
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Ok(int(10)),
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],
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},
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TestCase {
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description: "Multiple Values",
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values: vec![int(10), int(30), int(20)],
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values: vec![int(10), int(20), int(30)],
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expected_err: None,
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expected_res: vec![Ok(decimal(20)), Ok(int(10)), Ok(int(30)), Ok(int(60))],
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expected_res: vec![
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Ok(decimal(20)),
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Ok(int(10)),
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Ok(int(30)),
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Ok(int(20)),
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Ok(int(60)),
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],
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},
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TestCase {
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description: "Mixed Values",
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@ -83,23 +96,31 @@ mod tests {
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Ok(decimal(21)),
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Ok(int(10)),
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Ok(decimal(26.5)),
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Ok(decimal(26.5)),
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Ok(decimal(63)),
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],
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},
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TestCase {
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description: "Negative Values",
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values: vec![int(10), int(-11), int(-14)],
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values: vec![int(-14), int(-11), int(10)],
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expected_err: None,
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expected_res: vec![Ok(decimal(-5)), Ok(int(-14)), Ok(int(10)), Ok(int(-15))],
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expected_res: vec![
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Ok(decimal(-5)),
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Ok(int(-14)),
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Ok(int(10)),
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Ok(int(-11)),
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Ok(int(-15)),
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],
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},
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TestCase {
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description: "Mixed Negative Values",
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values: vec![int(10), decimal(-11.5), decimal(-13.5)],
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values: vec![decimal(-13.5), decimal(-11.5), int(10)],
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expected_err: None,
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expected_res: vec![
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Ok(decimal(-5)),
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Ok(decimal(-13.5)),
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Ok(int(10)),
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Ok(decimal(-11.5)),
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Ok(decimal(-15)),
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],
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},
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@ -126,7 +147,8 @@ mod tests {
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for tc in tt.iter() {
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let tc: &TestCase = tc; // Just for type annotations
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let math_functions: Vec<MathFunction> = vec![average, minimum, maximum, summation];
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let math_functions: Vec<MathFunction> =
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vec![average, minimum, maximum, median, summation];
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let results = math_functions
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.iter()
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.map(|mf| mf(&tc.values, &test_tag))
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@ -6,6 +6,7 @@ Currently the following functions are implemented:
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* `math avg`: Finds the average of a list of numbers or tables
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* `math min`: Finds the minimum within a list of numbers or tables
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* `math max`: Finds the maximum within a list of numbers or tables
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* `math median`: Finds the median of a list of numbers or tables
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* `math sum`: Finds the sum of a list of numbers or tables
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However, the mathematical functions like `min` and `max` are more permissive and also work on `Dates`.
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@ -46,6 +47,8 @@ To get the average of the file sizes in a directory, simply pipe the size column
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```shell
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> ls | get size | math avg
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───┬────────
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# │
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───┼────────
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0 │ 7.2 KB
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───┴────────
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```
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@ -53,21 +56,35 @@ To get the average of the file sizes in a directory, simply pipe the size column
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```shell
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> ls | get size | math min
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───┬─────
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# │
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───┼─────
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0 │ 0 B
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───┴─────
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```
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```shell
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> ls | get size | math max
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───┬──────────
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0 │ 113.5 KB
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# │
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───┼──────────
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0 │ 113.6 KB
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───┴──────────
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```
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```shell
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> ls | get size | math median
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───┬───────
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# │
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───┼───────
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0 │ 320 B
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───┴───────
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```
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```shell
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> ls | get size | math sum
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───┬──────────
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0 │ 143.4 KB
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# │
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───┼──────────
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0 │ 143.6 KB
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───┴──────────
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```
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@ -91,29 +108,31 @@ To get the average of the file sizes in a directory, simply pipe the size column
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# │ lines │ words │ chars │ max length
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───┼───────┼───────┼───────┼────────────
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0 │ 0 │ 1 │ 5 │ 5
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1 │ 0 │ 1 │ 7 │ 7
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2 │ 0 │ 1 │ 9 │ 9
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3 │ 0 │ 1 │ 7 │ 7
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1 │ 0 │ 1 │ 11 │ 11
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2 │ 0 │ 1 │ 11 │ 11
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3 │ 0 │ 1 │ 4 │ 4
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4 │ 0 │ 2 │ 12 │ 12
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5 │ 0 │ 1 │ 7 │ 7
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───┴───────┴───────┴───────┴────────────
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```
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```shell
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> pwd | split row / | size | math max
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───────────┬───
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────────────┬────
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lines │ 0
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words │ 1
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chars │ 9
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max length │ 9
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────────────┴───
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words │ 2
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chars │ 12
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max length │ 12
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────────────┴────
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```
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```shell
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> pwd | split row / | size | math avg
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────────────┬────────
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lines │ 0.0000
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words │ 1.0000
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chars │ 7.0000
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max length │ 7.0000
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words │ 1.1666
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chars │ 8.3333
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max length │ 8.3333
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────────────┴────────
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```
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