TASK: code analysis tests

analysis/codeAnalyzer_test.go

@@ -0,0 +1,32 @@
+package analysis
+
+import (
+	"regexp"
+	"testing"
+
+	"github.com/sandstorm/dependency-analysis/dataStructures"
+)
+
+// this test runs the code analysis against this project
+// if you change the package structure, you need to adjust the expectations as well
+func TestBuildDependencyGraph(t *testing.T) {
+	t.Run("analyze sda", func(t *testing.T) {
+		settings := &AnalyzerSettings{
+			SourcePath: "..",
+			Depth: 1,
+			IncludePattern: regexp.MustCompile(".*"),
+		}
+		actual, err := BuildDependencyGraph(settings)
+		AssertNil(t, err)
+		expected := dataStructures.NewDirectedStringGraph().
+			AddEdge("main", "cmd").
+			AddEdge("cmd", "analysis").
+			AddEdge("cmd", "dataStructures").
+			AddEdge("cmd", "rendering").
+			AddEdge("analysis", "parsing").
+			AddEdge("analysis", "dataStructures").
+			AddEdge("parsing", "dataStructures").
+			AddEdge("rendering", "dataStructuress")
+		AssertEquals(t, "incorrect graph", expected, actual)
+	})
+}

analysis/graphAnalyzer_test.go

@@ -1,9 +1,10 @@
 package analysis
 
 import (
-	"github.com/sandstorm/dependency-analysis/dataStructures"
 	"reflect"
 	"testing"
+
+	"github.com/sandstorm/dependency-analysis/dataStructures"
 )
 
 func AssertEquals(t *testing.T, message string, expected interface{}, actual interface{}) {
@@ -16,6 +17,14 @@ func AssertEquals(t *testing.T, message string, expected interface{}, actual int
 		actual, reflect.TypeOf(actual))
 }
 
+func AssertNil(t *testing.T, actual interface{}) {
+	if actual == nil {
+		return
+	}
+	t.Errorf("expected nil, received %v (type %v)",
+		actual, reflect.TypeOf(actual))
+}
+
 func TestWeightByNumberOfDescendant(t *testing.T) {
 	testCases := []struct {
 		name     string

dataStructures/directedGraph.go

@@ -1,5 +1,7 @@
 package dataStructures
 
+import "fmt"
+
 // directed graph with nodes of type string
 type DirectedStringGraph struct {
 	// all nodes with their set of children (might be empty)
@@ -50,3 +52,11 @@ func (this *DirectedStringGraph) GetEdges() map[string][]string {
 	}
 	return result
 }
+
+func (this *DirectedStringGraph) String() string {
+	result := "{ "
+	for source, targets := range this.Edges {
+		result += fmt.Sprintf("%v -> %v ", source, targets)
+	}
+	return result + "}"
+}

dataStructures/stringSet.go

@@ -1,5 +1,9 @@
 package dataStructures
 
+import (
+	"fmt"
+)
+
 type StringSet struct {
 	content map[string]bool
 }
@@ -31,9 +35,17 @@ func (this *StringSet) Remove(value string) {
 func (this *StringSet) ToArray() []string {
 	result := make([]string, len(this.content))
 	var i = 0
-	for key, _ := range this.content {
+	for key := range this.content {
 		result[i] = key
 		i++
 	}
 	return result
 }
+
+func (this *StringSet) String() string {
+	result := "[ "
+	for key := range this.content {
+		result += fmt.Sprintf("%v ", key)
+	}
+	return result + "]"
+}

dev.sh

@@ -48,7 +48,7 @@ function test() {
 # runs the dependency analysis against this project
 function self_check() {
   go run . validate .
-  go run . visualize .
+  go run . visualize --show-image=false .
 }
 
 # Builds the project locall and creates a release