test: examples

.dockerignore

@@ -0,0 +1,48 @@
+*~
+.fuse_hidden*
+.directory
+.Trash-*
+.nfs*
+/public/
+/resources/_gen/
+hugo.exe
+hugo.darwin
+hugo.linux
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+*.test
+*.out
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+*.stackdump
+[Dd]esktop.ini
+$RECYCLE.BIN/
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+*.lnk
+.DS_Store
+.AppleDouble
+.LSOverride
+Icon
+._*
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+/docs

Dockerfile

@@ -5,6 +5,6 @@ WORKDIR /app
 COPY go.* ./
 RUN go mod download
 
-COPY *.go ./
+COPY . ./
 
 RUN go test ./... -cover

examples/chaining.go

@@ -1,19 +1,15 @@
 package examples
 
 import (
-	"fmt"
-
 	"github.com/rjNemo/underscore/chain"
 )
 
-func chaining() {
-	sum := chain.Of([]int{1, 2, 3, 4, 5, 6, 7, 8, 9}).
+func chaining() int {
+	return chain.Of([]int{1, 2, 3, 4, 5, 6, 7, 8, 9}).
 		// filter even numbers from the slice
 		Filter(func(n int) bool { return n%2 == 0 }).
 		// square every number in the slice
 		Map(func(n int) int { return n * n }).
 		// reduce to the sum
 		Reduce(func(n, acc int) int { return n + acc }, 0)
-
-	fmt.Println(sum)
 }

examples/chaining_test.go

@@ -0,0 +1,11 @@
+package examples
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestChainingExample(t *testing.T) {
+	assert.Equal(t, 120, chaining())
+}

examples/filterMapReduce.go

@@ -1,12 +1,10 @@
 package examples
 
 import (
-	"fmt"
-
 	u "github.com/rjNemo/underscore"
 )
 
-func filterMapReduce() {
+func filterMapReduce() int {
 	numbers := []int{1, 2, 3, 4, 5, 6, 7, 8, 9}
 	// filter even numbers from the slice
 	evens := u.Filter(numbers, func(n int) bool { return n%2 == 0 })
@@ -15,5 +13,5 @@ func filterMapReduce() {
 	// reduce to the sum
 	res := u.Reduce(squares, func(n, acc int) int { return n + acc }, 0)
 
-	fmt.Println(res)
+	return res
 }

examples/filterMapReduce_test.go

@@ -0,0 +1,11 @@
+package examples
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFilterMapReduceExample(t *testing.T) {
+	assert.Equal(t, 120, filterMapReduce())
+}