Add a runnable Go example

This commit is contained in:
Simon Drake 2021-06-24 14:40:40 +01:00
commit 5075f3a11a
7 changed files with 125 additions and 1 deletions

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@ -290,7 +290,7 @@ If you just want to try out vimspector without changing your vim config, there
are example projects for a number of languages in `support/test`, including:
* Python (`support/test/python/simple_python`)
* Go (`support/test/go/hello_world`)
* Go (`support/test/go/hello_world` and `support/test/go/name-starts-with-vowel`)
* Nodejs (`support/test/node/simple`)
* Chrome (`support/test/chrome/`)
* etc.

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{
"configurations": {
"run-cmd": {
"adapter": "vscode-go",
"configuration": {
"request": "launch",
"program": "${workspaceRoot}/cmd/namestartswithvowel/main.go",
"mode": "debug",
"dlvToolPath": "$HOME/go/bin/dlv",
"dlvLoadConfig": {
"maxArrayValues": 1000,
"maxStringLen": 1000
}
}
},
"test-current-file": {
"adapter": "vscode-go",
"configuration": {
"request": "launch",
"mode": "test",
"program": "${fileDirname}",
"cwd": "${fileDirname}",
"dlvToolPath": "$GOPATH/bin/dlv",
"env": {},
"args": []
}
}
}
}

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# Purpose
This example comes with two example vimspector configs for the Go programming language.
1) `run-cmd` will launch the main programme under `cmd/namestartswithvowel`.
1) `test-current-file` will run the tests in the current file in debug mode.
## Example use-cases
### run-cmd
* Open `cmd/namestartswithvowel/main.go`
* Add a breakpoint somewhere within the programme
* Start the debugger (`:call vimspector#Continue()` or your relevant keymapping)
* Select the first launch configuration (`1: run-cmd`)
### test-current-file
* Open `internal/vowels/vowels_test.go`
* Add a breakpoint somewhere within the test
* Start the debugger (`:call vimspector#Continue()` or your relevant keymapping)
* Select the second launch configuration (`2: test-current-file`)
## Additional Configuration
There are two additional configuration options specified under `run-cmd`; these parameters configure the maximum string/array size to be shown while debugging.
```
"dlvLoadConfig": {
"maxArrayValues": 1000,
"maxStringLen": 1000
}
```

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package main
import (
"fmt"
"example.com/internal/vowels"
)
func main() {
names := []string{"Simon", "Bob", "Jennifer", "Amy", "Duke", "Elizabeth"}
for _, n := range names {
if vowels.NameStartsWithVowel(n) {
fmt.Printf("%s starts with a vowel!\n", n)
continue
}
fmt.Printf("%s does not start with a vowel!\n", n)
}
}

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module example.com
go 1.16

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@ -0,0 +1,9 @@
package vowels
import "strings"
func NameStartsWithVowel(name string) bool {
s := strings.Split(strings.ToLower(name), "")
return s[0] == "a" || s[0] == "e" || s[0] == "i" || s[0] == "o" || s[0] == "u"
}

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package vowels
import (
"fmt"
"testing"
)
func TestNameStartsWithVowel(t *testing.T) {
testCases := []struct {
input string
expectedOutput bool
}{
{
input: "Simon",
expectedOutput: false,
},
{
input: "Andy",
expectedOutput: true,
},
}
for _, tt := range testCases {
t.Run(fmt.Sprintf("%s should product %t", tt.input, tt.expectedOutput), func(t *testing.T) {
out := NameStartsWithVowel(tt.input)
if out != tt.expectedOutput {
t.Errorf("%s produced %t, when %t was expected", tt.input, out, tt.expectedOutput)
}
})
}
}