opentofu/terraform/eval_context_mock.go
Martin Atkins 73053eb5ef core: Context.Eval method
Some of the objects that are referencable from expressions are transient
values computed only during a graph walk, and not persisted in state. In
order to support arbitrary evaluation of expressions, such as in the
"terraform console" CLI command, it's necessary to be able to evaluate
these values before we start evaluating.

This new Eval method achieves this by performing a special graph walk that
ignores resources (except for dependency resolution) and just focuses on
evaluating all of these transient values, before returning an evaluation
scope that can then resolve expressions in terms of that result.

This replaces the Context.Interpolator method, which was fraught with
various issues due to it not properly priming the state before evaluating.
2018-10-16 18:46:46 -07:00

279 lines
7.8 KiB
Go

package terraform
import (
"sync"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/lang"
"github.com/hashicorp/hcl2/hcl"
"github.com/hashicorp/terraform/config/configschema"
"github.com/hashicorp/terraform/tfdiags"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/config"
)
// MockEvalContext is a mock version of EvalContext that can be used
// for tests.
type MockEvalContext struct {
StoppedCalled bool
StoppedValue <-chan struct{}
HookCalled bool
HookHook Hook
HookError error
InputCalled bool
InputInput UIInput
InitProviderCalled bool
InitProviderType string
InitProviderAddr addrs.ProviderConfig
InitProviderProvider ResourceProvider
InitProviderError error
ProviderCalled bool
ProviderAddr addrs.AbsProviderConfig
ProviderProvider ResourceProvider
ProviderSchemaCalled bool
ProviderSchemaAddr addrs.AbsProviderConfig
ProviderSchemaSchema *ProviderSchema
CloseProviderCalled bool
CloseProviderAddr addrs.ProviderConfig
CloseProviderProvider ResourceProvider
ProviderInputCalled bool
ProviderInputAddr addrs.ProviderConfig
ProviderInputValues map[string]cty.Value
SetProviderInputCalled bool
SetProviderInputAddr addrs.ProviderConfig
SetProviderInputValues map[string]cty.Value
ConfigureProviderCalled bool
ConfigureProviderAddr addrs.ProviderConfig
ConfigureProviderConfig cty.Value
ConfigureProviderDiags tfdiags.Diagnostics
InitProvisionerCalled bool
InitProvisionerName string
InitProvisionerProvisioner ResourceProvisioner
InitProvisionerError error
ProvisionerCalled bool
ProvisionerName string
ProvisionerProvisioner ResourceProvisioner
ProvisionerSchemaCalled bool
ProvisionerSchemaName string
ProvisionerSchemaSchema *configschema.Block
CloseProvisionerCalled bool
CloseProvisionerName string
CloseProvisionerProvisioner ResourceProvisioner
EvaluateBlockCalled bool
EvaluateBlockBody hcl.Body
EvaluateBlockSchema *configschema.Block
EvaluateBlockSelf addrs.Referenceable
EvaluateBlockKey addrs.InstanceKey
EvaluateBlockResult cty.Value
EvaluateBlockExpandedBody hcl.Body
EvaluateBlockDiags tfdiags.Diagnostics
EvaluateExprCalled bool
EvaluateExprExpr hcl.Expression
EvaluateExprWantType cty.Type
EvaluateExprSelf addrs.Referenceable
EvaluateExprResult cty.Value
EvaluateExprDiags tfdiags.Diagnostics
EvaluationScopeCalled bool
EvaluationScopeSelf addrs.Referenceable
EvaluationScopeKey addrs.InstanceKey
EvaluationScopeScope *lang.Scope
InterpolateCalled bool
InterpolateConfig *config.RawConfig
InterpolateResource *Resource
InterpolateConfigResult *ResourceConfig
InterpolateError error
InterpolateProviderCalled bool
InterpolateProviderConfig *config.ProviderConfig
InterpolateProviderResource *Resource
InterpolateProviderConfigResult *ResourceConfig
InterpolateProviderError error
PathCalled bool
PathPath addrs.ModuleInstance
SetModuleCallArgumentsCalled bool
SetModuleCallArgumentsModule addrs.ModuleCallInstance
SetModuleCallArgumentsValues map[string]cty.Value
DiffCalled bool
DiffDiff *Diff
DiffLock *sync.RWMutex
StateCalled bool
StateState *State
StateLock *sync.RWMutex
}
// MockEvalContext implements EvalContext
var _ EvalContext = (*MockEvalContext)(nil)
func (c *MockEvalContext) Stopped() <-chan struct{} {
c.StoppedCalled = true
return c.StoppedValue
}
func (c *MockEvalContext) Hook(fn func(Hook) (HookAction, error)) error {
c.HookCalled = true
if c.HookHook != nil {
if _, err := fn(c.HookHook); err != nil {
return err
}
}
return c.HookError
}
func (c *MockEvalContext) Input() UIInput {
c.InputCalled = true
return c.InputInput
}
func (c *MockEvalContext) InitProvider(t string, addr addrs.ProviderConfig) (ResourceProvider, error) {
c.InitProviderCalled = true
c.InitProviderType = t
c.InitProviderAddr = addr
return c.InitProviderProvider, c.InitProviderError
}
func (c *MockEvalContext) Provider(addr addrs.AbsProviderConfig) ResourceProvider {
c.ProviderCalled = true
c.ProviderAddr = addr
return c.ProviderProvider
}
func (c *MockEvalContext) ProviderSchema(addr addrs.AbsProviderConfig) *ProviderSchema {
c.ProviderSchemaCalled = true
c.ProviderSchemaAddr = addr
return c.ProviderSchemaSchema
}
func (c *MockEvalContext) CloseProvider(addr addrs.ProviderConfig) error {
c.CloseProviderCalled = true
c.CloseProviderAddr = addr
return nil
}
func (c *MockEvalContext) ConfigureProvider(addr addrs.ProviderConfig, cfg cty.Value) tfdiags.Diagnostics {
c.ConfigureProviderCalled = true
c.ConfigureProviderAddr = addr
c.ConfigureProviderConfig = cfg
return c.ConfigureProviderDiags
}
func (c *MockEvalContext) ProviderInput(addr addrs.ProviderConfig) map[string]cty.Value {
c.ProviderInputCalled = true
c.ProviderInputAddr = addr
return c.ProviderInputValues
}
func (c *MockEvalContext) SetProviderInput(addr addrs.ProviderConfig, vals map[string]cty.Value) {
c.SetProviderInputCalled = true
c.SetProviderInputAddr = addr
c.SetProviderInputValues = vals
}
func (c *MockEvalContext) InitProvisioner(n string) (ResourceProvisioner, error) {
c.InitProvisionerCalled = true
c.InitProvisionerName = n
return c.InitProvisionerProvisioner, c.InitProvisionerError
}
func (c *MockEvalContext) Provisioner(n string) ResourceProvisioner {
c.ProvisionerCalled = true
c.ProvisionerName = n
return c.ProvisionerProvisioner
}
func (c *MockEvalContext) ProvisionerSchema(n string) *configschema.Block {
c.ProvisionerSchemaCalled = true
c.ProvisionerSchemaName = n
return c.ProvisionerSchemaSchema
}
func (c *MockEvalContext) CloseProvisioner(n string) error {
c.CloseProvisionerCalled = true
c.CloseProvisionerName = n
return nil
}
func (c *MockEvalContext) EvaluateBlock(body hcl.Body, schema *configschema.Block, self addrs.Referenceable, key addrs.InstanceKey) (cty.Value, hcl.Body, tfdiags.Diagnostics) {
c.EvaluateBlockCalled = true
c.EvaluateBlockBody = body
c.EvaluateBlockSchema = schema
c.EvaluateBlockSelf = self
c.EvaluateBlockKey = key
return c.EvaluateBlockResult, c.EvaluateBlockExpandedBody, c.EvaluateBlockDiags
}
func (c *MockEvalContext) EvaluateExpr(expr hcl.Expression, wantType cty.Type, self addrs.Referenceable) (cty.Value, tfdiags.Diagnostics) {
c.EvaluateExprCalled = true
c.EvaluateExprExpr = expr
c.EvaluateExprWantType = wantType
c.EvaluateExprSelf = self
return c.EvaluateExprResult, c.EvaluateExprDiags
}
func (c *MockEvalContext) EvaluationScope(self addrs.Referenceable, key addrs.InstanceKey) *lang.Scope {
c.EvaluationScopeCalled = true
c.EvaluationScopeSelf = self
c.EvaluationScopeKey = key
return c.EvaluationScopeScope
}
func (c *MockEvalContext) Interpolate(
config *config.RawConfig, resource *Resource) (*ResourceConfig, error) {
c.InterpolateCalled = true
c.InterpolateConfig = config
c.InterpolateResource = resource
return c.InterpolateConfigResult, c.InterpolateError
}
func (c *MockEvalContext) InterpolateProvider(
config *config.ProviderConfig, resource *Resource) (*ResourceConfig, error) {
c.InterpolateProviderCalled = true
c.InterpolateProviderConfig = config
c.InterpolateProviderResource = resource
return c.InterpolateProviderConfigResult, c.InterpolateError
}
func (c *MockEvalContext) Path() addrs.ModuleInstance {
c.PathCalled = true
return c.PathPath
}
func (c *MockEvalContext) SetModuleCallArguments(n addrs.ModuleCallInstance, values map[string]cty.Value) {
c.SetModuleCallArgumentsCalled = true
c.SetModuleCallArgumentsModule = n
c.SetModuleCallArgumentsValues = values
}
func (c *MockEvalContext) Diff() (*Diff, *sync.RWMutex) {
c.DiffCalled = true
return c.DiffDiff, c.DiffLock
}
func (c *MockEvalContext) State() (*State, *sync.RWMutex) {
c.StateCalled = true
return c.StateState, c.StateLock
}