docs-v2/content/flux/v0/stdlib/testing/assertequals.md

title	description	menu	weight	flux/v0/tags
testing.assertEquals() function	`testing.assertEquals()` tests whether two streams of tables are identical.	flux_v0_ref name parent identifier testing.assertEquals testing testing/assertEquals	101	tests

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]

{{% caption %}} For more information, see Function type signatures. {{% /caption %}}

Parameters

name

({{< req >}}) Unique assertion name.

got

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

want

({{< req >}}) Expected data to test against.

Examples

• Test if streams of tables are different
• Test if streams of tables are different mid-script

Test if streams of tables are different

import "sampledata"
import "testing"

want = sampledata.int()
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)