Add makefile code sample for tests

pkg/analyzer/analyzer_test.go

@@ -108,10 +108,15 @@ func TestMatchingFiles(t *testing.T) {
 					Language:  "PHP",
 				},
 				{
+					FilePath:  filepath.Join(codeSamplesDir, "Makefile"),
+					Extension: "Makefile",
+					Language:  "Makefile",
+        },
+        {
 					FilePath:  filepath.Join(codeSamplesDir, "App.vue"),
 					Extension: ".vue",
 					Language:  "Vue",
-				},
+        },
 			},
 		},
 		{
@@ -180,6 +185,12 @@ func TestMatchingFiles(t *testing.T) {
 					Language:  "PHP",
 				},
 				{
+
+					FilePath:  filepath.Join(codeSamplesDir, "Makefile"),
+					Extension: "Makefile",
+					Language:  "Makefile",
+        },
+        {
 					FilePath:  filepath.Join(codeSamplesDir, "App.vue"),
 					Extension: ".vue",
 					Language:  "Vue",
@@ -252,6 +263,11 @@ func TestMatchingFiles(t *testing.T) {
 					Language:  "PHP",
 				},
 				{
+					FilePath:  filepath.Join(codeSamplesDir, "Makefile"),
+					Extension: "Makefile",
+					Language:  "Makefile",
+        },
+        {
 					FilePath:  filepath.Join(codeSamplesDir, "App.vue"),
 					Extension: ".vue",
 					Language:  "Vue",

pkg/scanner/scanner_test.go

@@ -84,6 +84,11 @@ func TestScan(t *testing.T) {
 			Language:  "PHP",
 		},
 		{
+			FilePath:  filepath.Join(codeSamplesDir, "Makefile"),
+			Extension: "Makefile",
+			Language:  "Makefile",
+    },
+    {
 			FilePath:  filepath.Join(codeSamplesDir, "App.vue"),
 			Extension: ".vue",
 			Language:  "Vue",
@@ -177,6 +182,13 @@ func TestScan(t *testing.T) {
 		},
 		{
 			Metadata:   files[12],
+			Lines:      24,
+			CodeLines:  19,
+			BlankLines: 4,
+			Comments:   1,
+    },
+    {
+    	Metadata:   files[13],
 			Lines:      51,
 			CodeLines:  39,
 			BlankLines: 7,

test/fixtures/code_samples/Makefile

@@ -0,0 +1,24 @@
+.PHONY:build
+
+# build
+build:
+	@echo "building the gcloc executable"
+	go build -o bin/gcloc cmd/gcloc/main.go
+	@echo "executable created bin/gcloc"
+
+.PHONY:clean
+clean:
+	@echo "cleaning the gcloc package"
+	rm -rf bin coverage.out coverage.html
+
+.PHONY:unit-test
+unit-test:
+	@echo "running unit tests"
+	go test -v `go list ./... | grep -v test/`
+
+.PHONY:coverage
+coverage:
+	@echo "coverage report"
+	go test -cover -v -timeout 60s -coverprofile=coverage.out ./...
+	go tool cover -func=coverage.out
+	g  tool cover -html=coverage.out -o coverage.html