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Add auto colors functionality (#296)
Co-authored-by: Pascal Jufer <[email protected]> Co-authored-by: Gustavo Henke <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| import chalk from 'chalk'; | ||
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| import { PrefixColorSelector } from './prefix-color-selector'; | ||
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| afterEach(() => { | ||
| jest.restoreAllMocks(); | ||
| }); | ||
|
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| describe('#getNextColor', function () { | ||
| const customTests: Record< | ||
| string, | ||
| { | ||
| acceptableConsoleColors?: Array<keyof typeof chalk>; | ||
| customColors?: string[]; | ||
| expectedColors: string[]; | ||
| } | ||
| > = { | ||
| 'does not produce a color if prefixColors empty': { | ||
| customColors: [], | ||
| expectedColors: ['', '', ''], | ||
| }, | ||
| 'does not produce a color if prefixColors undefined': { | ||
| expectedColors: ['', '', ''], | ||
| }, | ||
| 'uses user defined prefix colors only, if no auto is used': { | ||
| customColors: ['red', 'green', 'blue'], | ||
| expectedColors: [ | ||
| 'red', | ||
| 'green', | ||
| 'blue', | ||
|
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| // Uses last color if last color is not "auto" | ||
| 'blue', | ||
| 'blue', | ||
| 'blue', | ||
| ], | ||
| }, | ||
| 'picks varying colors when user defines an auto color': { | ||
| acceptableConsoleColors: ['green', 'blue'], | ||
| customColors: [ | ||
| 'red', | ||
| 'green', | ||
| 'auto', | ||
| 'green', | ||
| 'auto', | ||
| 'green', | ||
| 'auto', | ||
| 'blue', | ||
| 'auto', | ||
| 'orange', | ||
| ], | ||
| expectedColors: [ | ||
| // Custom colors | ||
| 'red', | ||
| 'green', | ||
| 'blue', // Picks auto color "blue", not repeating consecutive "green" color | ||
| 'green', // Manual | ||
| 'blue', // Auto picks "blue" not to repeat last | ||
| 'green', // Manual | ||
| 'blue', // Auto picks "blue" again not to repeat last | ||
| 'blue', // Manual | ||
| 'green', // Auto picks "green" again not to repeat last | ||
| 'orange', | ||
|
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| // Uses last color if last color is not "auto" | ||
| 'orange', | ||
| 'orange', | ||
| 'orange', | ||
| ], | ||
| }, | ||
| 'uses user defined colors then recurring auto colors without repeating consecutive colors': | ||
| { | ||
| acceptableConsoleColors: ['green', 'blue'], | ||
| customColors: ['red', 'green', 'auto'], | ||
| expectedColors: [ | ||
| // Custom colors | ||
| 'red', | ||
| 'green', | ||
|
|
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| // Picks auto colors, not repeating consecutive "green" color | ||
| 'blue', | ||
| 'green', | ||
| 'blue', | ||
| 'green', | ||
| ], | ||
| }, | ||
| 'can sometimes produce consecutive colors': { | ||
| acceptableConsoleColors: ['green', 'blue'], | ||
| customColors: ['blue', 'auto'], | ||
| expectedColors: [ | ||
| // Custom colors | ||
| 'blue', | ||
|
|
||
| // Picks auto colors | ||
| 'green', | ||
| // Does not repeat custom colors for initial auto colors, i.e. does not use "blue" again so soon | ||
| 'green', // Consecutive color picked, however practically there would be a lot of colors that need to be set in a particular order for this to occur | ||
| 'blue', | ||
| 'green', | ||
| 'blue', | ||
| 'green', | ||
| 'blue', | ||
| ], | ||
| }, | ||
| 'considers the Bright variants of colors equal to the normal colors to avoid similar colors': | ||
| { | ||
| acceptableConsoleColors: ['greenBright', 'blueBright', 'green', 'blue', 'magenta'], | ||
| customColors: ['green', 'blue', 'auto'], | ||
| expectedColors: [ | ||
| // Custom colors | ||
| 'green', | ||
| 'blue', | ||
|
|
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| // Picks auto colors, not repeating green and blue colors and variants initially | ||
| 'magenta', | ||
|
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| // Picks auto colors | ||
| 'greenBright', | ||
| 'blueBright', | ||
| 'green', | ||
| 'blue', | ||
| 'magenta', | ||
| ], | ||
| }, | ||
| }; | ||
| it.each(Object.entries(customTests))( | ||
| '%s', | ||
| (_, { acceptableConsoleColors, customColors, expectedColors }) => { | ||
| if (acceptableConsoleColors) { | ||
| jest.spyOn(PrefixColorSelector, 'ACCEPTABLE_CONSOLE_COLORS', 'get').mockReturnValue( | ||
| acceptableConsoleColors | ||
| ); | ||
| } | ||
| const prefixColorSelector = new PrefixColorSelector(customColors); | ||
| const prefixColorSelectorValues = expectedColors.map(() => | ||
| prefixColorSelector.getNextColor() | ||
| ); | ||
|
|
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| expect(prefixColorSelectorValues).toEqual(expectedColors); | ||
| } | ||
| ); | ||
|
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| const autoTests = { | ||
| 'does not repeat consecutive colors when last prefixColor is auto': false, | ||
| 'handles when more individual auto prefixColors exist than acceptable console colors': true, | ||
| }; | ||
| it.each(Object.entries(autoTests))('%s', (_, map) => { | ||
| // Pick auto colors over 2 sets | ||
| const expectedColors: string[] = [ | ||
| ...PrefixColorSelector.ACCEPTABLE_CONSOLE_COLORS, | ||
| ...PrefixColorSelector.ACCEPTABLE_CONSOLE_COLORS, | ||
| ]; | ||
|
|
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| const prefixColorSelector = new PrefixColorSelector( | ||
| map ? expectedColors.map(() => 'auto') : ['auto'] | ||
| ); | ||
|
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| expectedColors.reduce((previousColor, currentExpectedColor) => { | ||
| const actualSelectedColor = prefixColorSelector.getNextColor(); | ||
| expect(actualSelectedColor).not.toBe(previousColor); // No consecutive colors | ||
| expect(actualSelectedColor).toBe(currentExpectedColor); // Expected color | ||
| return actualSelectedColor; | ||
| }, ''); | ||
| }); | ||
| }); | ||
|
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| describe('PrefixColorSelector#ACCEPTABLE_CONSOLE_COLORS', () => { | ||
| it('has more than 1 auto color defined', () => { | ||
| // (!) The current implementation is based on the assumption that 'ACCEPTABLE_CONSOLE_COLORS' | ||
| // always has more than one entry, which is what we enforce via this test | ||
| expect(PrefixColorSelector.ACCEPTABLE_CONSOLE_COLORS.length).toBeGreaterThan(1); | ||
| }); | ||
| }); |
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