Tests basic functionality of tab target.
[
    [0] : {
        attached : false
        browserContextId : <string>
        canAccessOpener : false
        targetId : <string>
        title : 127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
        type : tab
        url : http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
    }
    [1] : {
        attached : false
        browserContextId : <string>
        canAccessOpener : false
        targetId : <string>
        title : 127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-test.html?test=http://127.0.0.1:8000/inspector-protocol/target/tab-target.js
        type : tab
        url : http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-test.html?test=http://127.0.0.1:8000/inspector-protocol/target/tab-target.js
    }
]
Tab target info, as obtained from target {
    id : <number>
    result : {
        targetInfo : {
            attached : true
            browserContextId : <string>
            canAccessOpener : false
            targetId : <string>
            title : 127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
            type : tab
            url : http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
        }
    }
    sessionId : <string>
}
Auto-attached targets (there should be exactly 1): [
    [0] : {
        sessionId : <string>
        targetInfo : {
            attached : true
            browserContextId : <string>
            canAccessOpener : false
            targetId : <string>
            title : 127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
            type : page
            url : http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
        }
        waitingForDebugger : false
    }
]
Attached to page http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
Auto-attached subframe target {
    method : Target.attachedToTarget
    params : {
        sessionId : <string>
        targetInfo : {
            attached : true
            browserContextId : <string>
            canAccessOpener : false
            parentFrameId : <string>
            parentId : <string>
            targetId : <string>
            title :
            type : iframe
            url :
        }
        waitingForDebugger : false
    }
    sessionId : <string>
}
Number of auto-attached tab sessions (should be 1): 1