Here we create two observables one and two using the cold helper provided by jasmine marbles if you aren t familiar with hot and cold read this post by ben lesh.
Install jasmine marbles.
A required library for unit testing of effects ngrx store freeze.
For this article i will use jasmine marbles to add marble testing to my jasmine based unit tests.
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Npm install jasmine marbles save dev.
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Marble testing helpers for rxjs and jasmine.
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The following are dev tools for ngrx npm install jasmine marbles ngrx store freeze generate ngrx ngrx store devtools only dev save brief description.
0 2 0 supports rxjs 5.
A code generator which can speed up your ngrx.
0 3 supports rxjs 6.
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Protect the immutable of the app state generate ngrx.
Providing mock actions for testing ngrx actions with jasmine marbles.
Npm install jasmine marbles save dev testing colormixer.
Better yet how should you wish to get what you wan.
When executed this method will return an observable of what color the mixer is outputting.
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Another option would be to use rxjs marbles which can be used with any test framework.
The colormixer has one static method mix that takes observables of whether or not a color is going into the mixer.