feat!(test): add unit tests for CRUD operations in main_test.go

goServerCRUD/main_test.go

@@ -0,0 +1,115 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"github.com/gorilla/mux"	
+)
+
+func TestGetMovies(t *testing.T) {
+	// Initialize the movies slice with dummy data
+	movies = []Movie{
+		{ID: "1", Isbn: "12345", Title: "Test Movie 1", Director: &Director{Firstname: "Robert", Lastname: "Griesemer"}},
+		{ID: "2", Isbn: "67890", Title: "Test Movie 2", Director: &Director{Firstname: "Rob", Lastname: "Pike"}},
+	}
+
+	// Create a new HTTP request
+	req, err := http.NewRequest("GET", "/movies", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Create a new response recorder
+	rr := httptest.NewRecorder()
+
+	// Create a new router and register the handler
+	router := mux.NewRouter()
+	router.HandleFunc("/movies", getMovies).Methods("GET")
+	router.ServeHTTP(rr, req)
+
+	// Check the status code
+	if status := rr.Code; status != http.StatusOK {
+		t.Errorf("Handler returned wrong status code: got %v, want %v", status, http.StatusOK)
+	}
+
+	// Decode the response body
+	var responseMovies []Movie
+	err = json.NewDecoder(rr.Body).Decode(&responseMovies)
+	if err != nil {
+		t.Errorf("Failed to decode response body: %v", err)
+	}
+
+	// Ensure the response contains the dummy data
+	if len(responseMovies) != len(movies) {
+		t.Errorf("Expected %d movies, got %d", len(movies), len(responseMovies))
+	}
+}
+
+
+// Test CreateMovie handler
+func TestCreateMovie(t *testing.T) {
+	newMovie := Movie{
+		Isbn:     "123456",
+		Title:    "Test Movie",
+		Director: &Director{Firstname: "Robert", Lastname: "Griesemer"},
+	}
+
+	body, err := json.Marshal(newMovie)
+	if err != nil {
+		t.Fatalf("Failed to marshal new movie: %v", err)
+	}
+
+	req, err := http.NewRequest("POST", "/movies", bytes.NewBuffer(body))
+	if err != nil {
+		t.Fatal(err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+
+	rr := httptest.NewRecorder()
+	router := mux.NewRouter()
+	router.HandleFunc("/movies", createMovie).Methods("POST")
+	router.ServeHTTP(rr, req)
+
+	if status := rr.Code; status != http.StatusOK {
+		t.Errorf("Handler returned wrong status code: got %v, want %v", status, http.StatusOK)
+	}
+
+	var createdMovie Movie
+	err = json.NewDecoder(rr.Body).Decode(&createdMovie)
+	if err != nil {
+		t.Fatalf("Failed to decode response body: %v", err)
+	}
+
+	if createdMovie.Title != newMovie.Title || createdMovie.Director.Firstname != newMovie.Director.Firstname {
+		t.Errorf("Created movie does not match input: got %+v, want %+v", createdMovie, newMovie)
+	}
+}
+
+// Test DeleteMovie handler
+func TestDeleteMovie(t *testing.T) {
+	movies = append(movies, Movie{ID: "999", Isbn: "test", Title: "Delete Test Movie", Director: &Director{Firstname: "Test", Lastname: "Delete"}})
+
+	req, err := http.NewRequest("DELETE", "/movie/999", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	rr := httptest.NewRecorder()
+	router := mux.NewRouter()
+	router.HandleFunc("/movie/{id}", deleteMovie).Methods("DELETE")
+	router.ServeHTTP(rr, req)
+
+	if status := rr.Code; status != http.StatusOK {
+		t.Errorf("Handler returned wrong status code: got %v, want %v", status, http.StatusOK)
+	}
+
+	// Check if movie is deleted
+	for _, movie := range movies {
+		if movie.ID == "999" {
+			t.Errorf("Movie with ID 999 was not deleted")
+		}
+	}
+}

goServerCRUD/readme.md

@@ -13,3 +13,12 @@ go get "github.com/gorilla/mux"
 | CREATE    | createMovie | /movies    | POST    |
 | UPDATE    | updateMovie | /movies/id | PUT     |
 | DELETE    | deleteMovie | /movies/id | DELETE  |
+
+
+#### Run the server
+
+go run main.go
+
+#### Test the server
+
+go test

goServerDocker/Dockerfile

@@ -0,0 +1,31 @@
+
+# Dockerfile
+FROM golang:latest
+
+
+WORKDIR /app
+
+# Copy go mod and sum files
+COPY go.mod go.sum ./
+
+
+# Download all dependencies
+RUN go mod download
+
+
+# Copy the source code
+COPY . .
+
+
+# Build the application
+RUN go build -o main .
+
+
+# Expose port 8080
+EXPOSE 8080
+
+
+# Command to run the application
+CMD ["./main"]
+
+

goServerDocker/Dockerfile.multistage

@@ -0,0 +1,32 @@
+# Stage 1 : Build the app
+FROM golang:1.23 AS builder
+
+# Set working directory in container
+WORKDIR /app
+
+# Copy the Go modules and download dependencies
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+# The application source code is copied
+COPY . .
+
+# Build the application binary
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64
+RUN go build -o myapp .
+
+# Step 2: Prepare a light weight runtime environment
+FROM alpine:latest
+
+# Within instances of the runtime container, also set the working directory
+WORKDIR /root/
+
+# COPY — Copy the binary from builder stage
+COPY --from=builder /app/myapp .
+
+# Expose the port the application listens on.
+EXPOSE 8080
+
+# Run the application
+CMD ["./myapp"]

goServerDocker/docker-compose.yaml

@@ -0,0 +1,11 @@
+
+services:          # Defines the services (containers) to be managed by Docker Compose.
+  app:             # Service name representing the application.
+    build:         # Configuration for building the Docker image.
+      context: .   # Build the container image from the Dockerfile in the current dir.
+      dockerfile: Dockerfile.multistage # Specifies the Dockerfile to use (multi-stage / normal Dockerfile).
+
+    ports:         
+      - "8080:8080" # Maps port 8080 on the host to port 8080 in the container.
+
+    restart: unless-stopped # Automatically restarts the container unless has explicitly stopped the container by the user.

goServerDocker/go.mod

@@ -0,0 +1,34 @@
+module github.com/Aniket762/namaste-go/goServerCRUD
+
+go 1.23.1
+
+require github.com/gin-gonic/gin v1.10.0
+
+require (
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.20.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

goServerDocker/go.sum

@@ -0,0 +1,89 @@
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+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

goServerDocker/main.go

@@ -0,0 +1,23 @@
+package main
+
+import(
+	"github.com/gin-gonic/gin"
+	"log"
+)
+
+func HelloWorldHandler() gin.HandlerFunc{
+	return func(c*gin.Context){
+		c.JSON(200,gin.H{"status":"success","message":"Hello world"})
+	}
+}
+
+func main(){
+	router:=gin.Default()
+	router.GET("/hello",HelloWorldHandler())
+	err:=router.Run(":8080")
+	if err!=nil{
+		log.Fatal()
+	}
+}
+
+

goServerDocker/readme.md

@@ -0,0 +1,33 @@
+### Pre-requisites
+
+```
+go get "github.com/gin-gonic/gin"
+```
+
+### Flow of the Server 💪
+
+Aim was to build a basic server using golang and gin framework running inside Docker environment.
+
+server -> /hello ->HelloWorldHandler func
+
+### To Run the server Locally
+
+go run main.go
+
+### To Run the server inside Docker
+
+docker compose up  
+
+### Stop the server and remove containers inside Docker
+
+docker compose down
+
+###  Choose Dockerfile
+
+You can choose which docker file need to be used for creating the container, choose multistage dockerfile for low size.
+specify it in bellow part of docker-compose.yaml file  
+
+      dockerfile: Dockerfile.multistage # Specifies the Dockerfile to use (multi-stage / normal Dockerfile).
+
+
+