Debugging works in command line but breakpoint is not hit in UI

Question

I have installed the following in my Windows 10 machine:

VS Code - version 1.38.1
Golang - version go1.13
Delve - version 1.3.0

I have set GOROOT and GOPATH in environment variables. My GOPATH has the following three folders:

src
bin
pkg

Under src, I have created a basic sam-app. It auto-creates main_test.go file. When I do 'debug test', breakpoint is not hitting in UI. Howerver, I am able to debug using dlv in command line.

I have tried different configurations in launch.json. None of them worked. In my friend's machine, the UI Debugging works even without configurations
In VS Code settings --> node debug --> auto attach --> I have set 'on'
I have closed VS Code and re-opened. It did not work
I have opened VS Code as Administrator, it did't work either
I have uninstalled and reinstalled VS Code
I have uninstalled and reinstalled Golang

I have installed Go extension in VS Code

package main

import (
    "fmt"
    "net/http"
    "net/http/httptest"
    "testing"

    "github.com/aws/aws-lambda-go/events"
)

func TestHandler(t *testing.T) {
    t.Run("Unable to get IP", func(t *testing.T) {
        DefaultHTTPGetAddress = "http://127.0.0.1:12345"

        _, err := handler(events.APIGatewayProxyRequest{})
        if err == nil {
            t.Fatal("Error failed to trigger with an invalid request")
        }
    })

    t.Run("Non 200 Response", func(t *testing.T) {
        ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            w.WriteHeader(500)
        }))
        defer ts.Close()

        DefaultHTTPGetAddress = ts.URL

        _, err := handler(events.APIGatewayProxyRequest{})
        if err != nil && err.Error() != ErrNon200Response.Error() {
            t.Fatalf("Error failed to trigger with an invalid HTTP response: %v", err)
        }
    })

    t.Run("Unable decode IP", func(t *testing.T) {
        ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            w.WriteHeader(500)
        }))
        defer ts.Close()

        DefaultHTTPGetAddress = ts.URL

        _, err := handler(events.APIGatewayProxyRequest{})
        if err == nil {
            t.Fatal("Error failed to trigger with an invalid HTTP response")
        }
    })

    t.Run("Successful Request", func(t *testing.T) {
        ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            w.WriteHeader(200)
            fmt.Fprintf(w, "127.0.0.1")
        }))
        defer ts.Close()

        DefaultHTTPGetAddress = ts.URL

        _, err := handler(events.APIGatewayProxyRequest{})
        if err != nil {
            t.Fatal("Everything should be ok")
        }
    })
}

I want the breakpoint to be hit, in UI, when I debug main.go or main_test.go.

UPDATE:

After I downgraded my VS Code to 1.30.2 and installed Go extension and Delve, I get the following error when I debug:

"Debug adapter process has terminated unexpectedly (read error)"

MAK MAK · Accepted Answer · 2019-09-14T11:36:10

I solved it as follows:

Deleted the '%USERPROFILE%\.vscode\extensions\ms-vscode.go-0.11.4' folder alone & reinstalled Go extension -- It did NOT work
Deleted the entire '%USERPROFILE%\.vscode' folder & reinstalled Go extension -- It worked :)

Some other extension was erroneous and so the Go debug failed to work. Cleaning all the extensions fixed it.

Hope, this might be useful to others.

Debugging works in command line but breakpoint is not hit in UI

1 Answers