Add tests

pkg/config/config_test.go

@@ -0,0 +1,81 @@
+package config
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+// Changing defaults could be a breaking change,
+// if this needs to be modified to pass the test,
+// an item should be added to the changelog.
+//
+// This should be maintained, as it is the primary
+// interface between an app and the app framework.
+var testDefaultConfig = &AppConfig{
+	Environment: "development",
+	Version:     getVersion(),
+	Logging: &LogConfig{
+		Enabled:    true,
+		Level:      "info",
+		Format:     LogFormatJSON,
+		Output:     "stderr",
+		TimeFormat: TimeFormatLong,
+	},
+	HTTP: &HTTPConfig{
+		Listen:       "127.0.0.1:8080",
+		LogRequests:  false,
+		ReadTimeout:  "10s",
+		WriteTimeout: "10s",
+		IdleTimeout:  "1m",
+	},
+	OTEL: &OTELConfig{
+		Enabled:            true,
+		PrometheusEnabled:  true,
+		PrometheusPath:     "/metrics",
+		StdoutEnabled:      false,
+		MetricIntervalSecs: 30,
+	},
+}
+
+func Test_loadConfig(t *testing.T) {
+	type args struct {
+		configPath string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    *AppConfig
+		wantErr bool
+	}{
+		{
+			name:    "Ensure defaults",
+			args:    args{configPath: ""},
+			want:    testDefaultConfig,
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := loadConfig(tt.args.configPath)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("loadConfig() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+
+			// Marshal both the expected and actual structs to JSON
+			gotJSON, err := json.Marshal(got)
+			if err != nil {
+				t.Fatalf("Failed to marshal got to JSON: %v", err)
+			}
+			wantJSON, err := json.Marshal(tt.want)
+			if err != nil {
+				t.Fatalf("Failed to marshal want to JSON: %v", err)
+			}
+
+			// Compare the JSON strings
+			if string(gotJSON) != string(wantJSON) {
+				t.Errorf("loadConfig() JSON = %s, want JSON = %s", string(gotJSON), string(wantJSON))
+			}
+		})
+	}
+}

pkg/config/ctx_test.go

@@ -0,0 +1,43 @@
+package config
+
+import (
+	"context"
+	"testing"
+)
+
+func TestFromCtx(t *testing.T) {
+	app := &AppConfig{
+		Name: "testapp",
+	}
+	appCtx := app.AddToCtx(context.Background())
+
+	type args struct {
+		ctx context.Context
+	}
+
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name:    "Unprepared app context",
+			args:    args{ctx: context.Background()},
+			wantErr: true,
+		},
+		{
+			name:    "Prepared app context",
+			args:    args{ctx: appCtx},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := FromCtx(tt.args.ctx)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("FromCtx() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+		})
+	}
+}