testing.assertEquals() function

testing.assertEquals() tests whether two streams of tables are identical.

If equal, the function outputs the tested data stream unchanged. If unequal, the function returns an error.

assertEquals can be used to perform in-line tests in a query.

Function type signature
(<-got: stream[A], name: string, want: stream[A]) => stream[A]

For more information, see Function type signatures.



(Required) Unique assertion name.


Data to test. Default is piped-forward data (<-).


(Required) Expected data to test against.


Test if streams of tables are different

import "sampledata"
import "testing"

want =
got = sampledata.float() |> toInt()

testing.assertEquals(name: "test_equality", got: got, want: want)

Test if streams of tables are different mid-script

import "testing"

want =
    from(bucket: "backup-example-bucket")
        |> range(start: -5m)

from(bucket: "example-bucket")
    |> range(start: -5m)
    |> testing.assertEquals(want: want)

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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following: