bug(MatInputHarness): error setting decimal value on input with type="number"

[mischkl]

Reproduction

Steps to reproduce:

1. Create a matInput with type="number" and step="0.01"
2. Get MatInputHarness for the input and attempt to set a decimal value on it, e.g.

await input.setValue('22.45');

Expected Behavior

The value is set to 22.45

Actual Behavior

What behavior did you actually see?

Chrome gives the error The specified value "22." is not a valid number. The value must match to the following regular expression: -?(\d+|\d+\.\d+|\.\d+)([eE][-+]?\d+)?

The actual set value is only the decimal part of the number, i.e. 45.

Environment

• Angular: 9.1.9
• CDK/Material: 9.2.4
• Browser(s): Chrome 80.0.3987.149
• Operating System (e.g. Windows, macOS, Ubuntu): macOS 10.15.5

[crisbeto]

I believe this should be resolved by #18812.

[tobiasschweizer]

I also experienced problems with a decimal value, see #18790 (comment).

I think it would be good to add a test for a decimal value to make sure it is fixed by #18812.

[crisbeto]

Closing since the related fix was merged in.

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