package getproviders import ( "testing" "github.com/google/go-cmp/cmp" "github.com/hashicorp/terraform/addrs" ) func TestMemoizeSource(t *testing.T) { provider := addrs.NewDefaultProvider("foo") version := MustParseVersion("1.0.0") protocols := VersionList{MustParseVersion("5.0")} platform := Platform{OS: "gameboy", Arch: "lr35902"} meta := FakePackageMeta(provider, version, protocols, platform) nonexistProvider := addrs.NewDefaultProvider("nonexist") nonexistPlatform := Platform{OS: "gamegear", Arch: "z80"} t.Run("AvailableVersions for existing provider", func(t *testing.T) { mock := NewMockSource([]PackageMeta{meta}) source := NewMemoizeSource(mock) got, err := source.AvailableVersions(provider) want := VersionList{version} if err != nil { t.Fatalf("unexpected error: %s", err) } if diff := cmp.Diff(want, got); diff != "" { t.Fatalf("wrong result from first call to AvailableVersions\n%s", diff) } got, err = source.AvailableVersions(provider) want = VersionList{version} if err != nil { t.Fatalf("unexpected error: %s", err) } if diff := cmp.Diff(want, got); diff != "" { t.Fatalf("wrong result from second call to AvailableVersions\n%s", diff) } _, err = source.AvailableVersions(nonexistProvider) if want, ok := err.(ErrProviderNotKnown); !ok { t.Fatalf("wrong error type from nonexist call:\ngot: %T\nwant: %T", err, want) } got, err = source.AvailableVersions(provider) want = VersionList{version} if err != nil { t.Fatalf("unexpected error: %s", err) } if diff := cmp.Diff(want, got); diff != "" { t.Fatalf("wrong result from third call to AvailableVersions\n%s", diff) } gotLog := mock.CallLog() wantLog := [][]interface{}{ // Only one call for the main provider, because the others were returned from the cache. {"AvailableVersions", provider}, // The call for nonexist also shows through, because it didn't match the cache. {"AvailableVersions", nonexistProvider}, } if diff := cmp.Diff(wantLog, gotLog); diff != "" { t.Fatalf("unexpected call log\n%s", diff) } }) t.Run("PackageMeta for existing provider", func(t *testing.T) { mock := NewMockSource([]PackageMeta{meta}) source := NewMemoizeSource(mock) got, err := source.PackageMeta(provider, version, platform) want := meta if err != nil { t.Fatalf("unexpected error: %s", err) } if diff := cmp.Diff(want, got); diff != "" { t.Fatalf("wrong result from first call to PackageMeta\n%s", diff) } got, err = source.PackageMeta(provider, version, platform) want = meta if err != nil { t.Fatalf("unexpected error: %s", err) } if diff := cmp.Diff(want, got); diff != "" { t.Fatalf("wrong result from second call to PackageMeta\n%s", diff) } _, err = source.PackageMeta(nonexistProvider, version, platform) if want, ok := err.(ErrPlatformNotSupported); !ok { t.Fatalf("wrong error type from nonexist provider call:\ngot: %T\nwant: %T", err, want) } _, err = source.PackageMeta(provider, version, nonexistPlatform) if want, ok := err.(ErrPlatformNotSupported); !ok { t.Fatalf("wrong error type from nonexist platform call:\ngot: %T\nwant: %T", err, want) } got, err = source.PackageMeta(provider, version, platform) want = meta if err != nil { t.Fatalf("unexpected error: %s", err) } if diff := cmp.Diff(want, got); diff != "" { t.Fatalf("wrong result from third call to PackageMeta\n%s", diff) } gotLog := mock.CallLog() wantLog := [][]interface{}{ // Only one call for the main provider, because the others were returned from the cache. {"PackageMeta", provider, version, platform}, // The other calls for non-exist things also show through, because they missed the cache. {"PackageMeta", nonexistProvider, version, platform}, {"PackageMeta", provider, version, nonexistPlatform}, } if diff := cmp.Diff(wantLog, gotLog); diff != "" { t.Fatalf("unexpected call log\n%s", diff) } }) t.Run("AvailableVersions for non-existing provider", func(t *testing.T) { mock := NewMockSource([]PackageMeta{meta}) source := NewMemoizeSource(mock) _, err := source.AvailableVersions(nonexistProvider) if want, ok := err.(ErrProviderNotKnown); !ok { t.Fatalf("wrong error type from first call:\ngot: %T\nwant: %T", err, want) } _, err = source.AvailableVersions(nonexistProvider) if want, ok := err.(ErrProviderNotKnown); !ok { t.Fatalf("wrong error type from second call:\ngot: %T\nwant: %T", err, want) } gotLog := mock.CallLog() wantLog := [][]interface{}{ // Only one call, because the other was returned from the cache. {"AvailableVersions", nonexistProvider}, } if diff := cmp.Diff(wantLog, gotLog); diff != "" { t.Fatalf("unexpected call log\n%s", diff) } }) t.Run("PackageMeta for non-existing provider", func(t *testing.T) { mock := NewMockSource([]PackageMeta{meta}) source := NewMemoizeSource(mock) _, err := source.PackageMeta(nonexistProvider, version, platform) if want, ok := err.(ErrPlatformNotSupported); !ok { t.Fatalf("wrong error type from first call:\ngot: %T\nwant: %T", err, want) } _, err = source.PackageMeta(nonexistProvider, version, platform) if want, ok := err.(ErrPlatformNotSupported); !ok { t.Fatalf("wrong error type from second call:\ngot: %T\nwant: %T", err, want) } gotLog := mock.CallLog() wantLog := [][]interface{}{ // Only one call, because the other was returned from the cache. {"PackageMeta", nonexistProvider, version, platform}, } if diff := cmp.Diff(wantLog, gotLog); diff != "" { t.Fatalf("unexpected call log\n%s", diff) } }) }