Adding shared workflow (#3)

* Adding shared workflow

* better in the right spot

* added test and cov badge

.github/dependabot.yml

@@ -0,0 +1,16 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every week
+      interval: "weekly"

.github/workflows/include.yml

@@ -0,0 +1,16 @@
+# Same as full workflow (eg from fortio/multicurl) but without the goreleaser step
+name: "Shared library fortio workflows"
+
+on:
+    push:
+      branches: [ main ]
+    pull_request:
+      branches: [ main ]
+
+jobs:
+    call-gochecks:
+        uses: fortio/workflows/.github/workflows/gochecks.yml@main
+    call-codecov:
+        uses: fortio/workflows/.github/workflows/codecov.yml@main
+    call-codeql:
+        uses: fortio/workflows/.github/workflows/codeql-analysis.yml@main

README.md

@@ -2,11 +2,13 @@
 
 [![Go Report Card](https://goreportcard.com/badge/fortio.org/safecast)](https://goreportcard.com/report/fortio.org/safecast)
 [![GoDoc](https://godoc.org/fortio.org/safecast?status.svg)](https://pkg.go.dev/fortio.org/safecast)
+[![codecov](https://codecov.io/gh/fortio/safecast/branch/main/graph/badge.svg)](https://codecov.io/gh/fortio/safecast)
 
 Avoid accidental overflow of numbers during go type conversions (e.g instead of `shorter := bigger.(int8)` type conversions use `shorter := safecast.MustConvert[int8](bigger)`.
 
 Safecast allows you to safely convert between numeric types in Go and return errors (or panic when using the `Must*` variants) when the cast would result in a loss of precision, range or sign.
 
 See https://pkg.go.dev/fortio.org/safecast for docs and example.
+This is usable from any go with generics (1.18 or later) though our CI uses the latest go.
 
 Idea: @ccoVeille see https://github.com/ccoVeille/go-safecast for an different style API and implementation.

go.mod

@@ -1,3 +1,3 @@
 module fortio.org/safecast
 
-go 1.20
+go 1.20 // Really 1.18 or higher, just need generics. do use a supported version of go.

safecast_test.go

@@ -7,6 +7,8 @@ import (
 	"fortio.org/safecast"
 )
 
+// TODO: steal the tests from https://github.com/ccoVeille/go-safecast
+
 func TestConvert(t *testing.T) {
 	var inp uint32 = 42
 	out, err := safecast.Convert[int8](inp)
@@ -70,9 +72,13 @@ func TestConvert(t *testing.T) {
 	if ub != 255 {
 		t.Errorf("unexpected value: %v", ub)
 	}
+	ub = safecast.MustConvert[uint8](int64(255)) // shouldn't panic
+	if ub != 255 {
+		t.Errorf("unexpected value: %v", ub)
+	}
 }
 
-func TestPanic(t *testing.T) {
+func TestPanicMustRound(t *testing.T) {
 	defer func() {
 		r := recover()
 		if r == nil {
@@ -87,6 +93,36 @@ func TestPanic(t *testing.T) {
 	safecast.MustRound[uint8](float32(255.5))
 }
 
+func TestPanicMustTruncate(t *testing.T) {
+	defer func() {
+		r := recover()
+		if r == nil {
+			t.Errorf("expected panic")
+		} else {
+			expected := "safecast: out of range for -1.5 (float32) to uint8"
+			if r != expected {
+				t.Errorf("unexpected panic: %q wanted %q", r, expected)
+			}
+		}
+	}()
+	safecast.MustTruncate[uint8](float32(-1.5))
+}
+
+func TestPanicMustConvert(t *testing.T) {
+	defer func() {
+		r := recover()
+		if r == nil {
+			t.Errorf("expected panic")
+		} else {
+			expected := "safecast: out of range for 256 (int) to uint8"
+			if r != expected {
+				t.Errorf("unexpected panic: %q wanted %q", r, expected)
+			}
+		}
+	}()
+	safecast.MustConvert[uint8](256)
+}
+
 func Example() {
 	var in int16 = 256
 	// will error out