Tests that InspectorBackendDispatcher is catching incorrect messages.

{
    error : {
        code : -32700
        message : "Message must be in JSON format"
    }
    id : null
}
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{
    error : {
        code : -32600
        message : "'id' property was not found"
    }
    id : null
}
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{
    error : {
        code : -32600
        message : "The type of 'id' property must be number"
    }
    id : null
}
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{
    error : {
        code : -32600
        message : "The type of 'method' property must be string"
    }
    id : 1
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'resourceContent' wasn't found"
    }
    id : 2
}
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{
    error : {
        code : -32601
        message : "'DOM.test' wasn't found"
    }
    id : 3
}
-------------------------------------------------------
{
    error : {
        code : -32602
        message : "Some arguments of method 'Page.getResourceContent' can't be processed"
        data : [
            "'params' object must contain required parameter 'frameId' with type 'String'."
            "'params' object must contain required parameter 'url' with type 'String'."
        ]
    }
    id : 4
}
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{
    error : {
        code : -32602
        message : "Some arguments of method 'Page.getResourceContent' can't be processed"
        data : [
            "'params' object must contain required parameter 'frameId' with type 'String'."
            "'params' object must contain required parameter 'url' with type 'String'."
        ]
    }
    id : 5
}
-------------------------------------------------------
{
    error : {
        code : -32602
        message : "Some arguments of method 'Page.getResourceContent' can't be processed"
        data : [
            "Parameter 'frameId' with type 'String' was not found."
            "Parameter 'url' with type 'String' was not found."
        ]
    }
    id : 6
}
-------------------------------------------------------
{
    error : {
        code : -32602
        message : "Some arguments of method 'Page.getResourceContent' can't be processed"
        data : [
            "Parameter 'url' with type 'String' was not found."
        ]
    }
    id : 7
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 8
}
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{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 9
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 10
}
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{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 11
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 12
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 13
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 14
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 15
}
-------------------------------------------------------
{
    error : {
        code : -32601
        message : "'Page.test' wasn't found"
    }
    id : 16
}
-------------------------------------------------------