75 lines
2.8 KiB
Go
75 lines
2.8 KiB
Go
package initwd
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import (
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"context"
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"testing"
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"github.com/hashicorp/terraform/internal/configs"
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"github.com/hashicorp/terraform/internal/configs/configload"
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"github.com/hashicorp/terraform/internal/registry"
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"github.com/hashicorp/terraform/internal/tfdiags"
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)
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// LoadConfigForTests is a convenience wrapper around configload.NewLoaderForTests,
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// ModuleInstaller.InstallModules and configload.Loader.LoadConfig that allows
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// a test configuration to be loaded in a single step.
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//
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// If module installation fails, t.Fatal (or similar) is called to halt
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// execution of the test, under the assumption that installation failures are
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// not expected. If installation failures _are_ expected then use
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// NewLoaderForTests and work with the loader object directly. If module
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// installation succeeds but generates warnings, these warnings are discarded.
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//
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// If installation succeeds but errors are detected during loading then a
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// possibly-incomplete config is returned along with error diagnostics. The
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// test run is not aborted in this case, so that the caller can make assertions
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// against the returned diagnostics.
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//
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// As with NewLoaderForTests, a cleanup function is returned which must be
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// called before the test completes in order to remove the temporary
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// modules directory.
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func LoadConfigForTests(t *testing.T, rootDir string) (*configs.Config, *configload.Loader, func(), tfdiags.Diagnostics) {
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t.Helper()
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var diags tfdiags.Diagnostics
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loader, cleanup := configload.NewLoaderForTests(t)
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inst := NewModuleInstaller(loader.ModulesDir(), registry.NewClient(nil, nil))
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_, moreDiags := inst.InstallModules(context.Background(), rootDir, true, ModuleInstallHooksImpl{})
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diags = diags.Append(moreDiags)
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if diags.HasErrors() {
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cleanup()
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t.Fatal(diags.Err())
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return nil, nil, func() {}, diags
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}
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// Since module installer has modified the module manifest on disk, we need
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// to refresh the cache of it in the loader.
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if err := loader.RefreshModules(); err != nil {
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t.Fatalf("failed to refresh modules after installation: %s", err)
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}
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config, hclDiags := loader.LoadConfig(rootDir)
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diags = diags.Append(hclDiags)
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return config, loader, cleanup, diags
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}
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// MustLoadConfigForTests is a variant of LoadConfigForTests which calls
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// t.Fatal (or similar) if there are any errors during loading, and thus
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// does not return diagnostics at all.
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//
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// This is useful for concisely writing tests that don't expect errors at
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// all. For tests that expect errors and need to assert against them, use
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// LoadConfigForTests instead.
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func MustLoadConfigForTests(t *testing.T, rootDir string) (*configs.Config, *configload.Loader, func()) {
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t.Helper()
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config, loader, cleanup, diags := LoadConfigForTests(t, rootDir)
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if diags.HasErrors() {
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cleanup()
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t.Fatal(diags.Err())
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}
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return config, loader, cleanup
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}
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