terraform/terraform/graph_test.go

71 lines
1.5 KiB
Go

package terraform
import (
"testing"
"github.com/hashicorp/terraform/dag"
)
// testGraphContains is an assertion helper that tests that a node is
// contained in the graph.
func testGraphContains(t *testing.T, g *Graph, name string) {
for _, v := range g.Vertices() {
if dag.VertexName(v) == name {
return
}
}
t.Fatalf(
"Expected %q in:\n\n%s",
name, g.String())
}
// testGraphnotContains is an assertion helper that tests that a node is
// NOT contained in the graph.
func testGraphNotContains(t *testing.T, g *Graph, name string) {
for _, v := range g.Vertices() {
if dag.VertexName(v) == name {
t.Fatalf(
"Expected %q to NOT be in:\n\n%s",
name, g.String())
}
}
}
// testGraphHappensBefore is an assertion helper that tests that node
// A (dag.VertexName value) happens before node B.
func testGraphHappensBefore(t *testing.T, g *Graph, A, B string) {
t.Helper()
// Find the B vertex
var vertexB dag.Vertex
for _, v := range g.Vertices() {
if dag.VertexName(v) == B {
vertexB = v
break
}
}
if vertexB == nil {
t.Fatalf(
"Expected %q before %q. Couldn't find %q in:\n\n%s",
A, B, B, g.String())
}
// Look at ancestors
deps, err := g.Ancestors(vertexB)
if err != nil {
t.Fatalf("Error: %s in graph:\n\n%s", err, g.String())
}
// Make sure B is in there
for _, v := range deps.List() {
if dag.VertexName(v) == A {
// Success
return
}
}
t.Fatalf(
"Expected %q before %q in:\n\n%s",
A, B, g.String())
}