src/mock/MethodMocker.ps1

# Copyright 2019, Adam Edwards
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

function __MethodMocker_Get {
    $mocker = try {
        $script:__MethodMocker
    } catch {
    }

    if ( ! $mocker ) {
        $mocker = [PSCustomObject] @{
            MethodPatcher = __MethodPatcher_Get
        }

        $script:__MethodMocker = $mocker
    }

    $mocker
}

function __MethodMocker_Mock($mockManager, $className, $methodName, $isStatic, $object, $mockScriptBlock, $parameterFilter, $isVerifiableMock) {
    $patchedMethod = __MethodPatcher_PatchMethod $mockManager.MethodPatcher $className $MethodName $isStatic $object

    __MethodMocker_MockPatchedMethod $patchedMethod $object $mockScriptBlock $parameterFilter $isVerifiableMock
}

function __MethodMocker_MockPatchedMethod($patchedMethod, $object, $mockScriptBlock, $parameterFilter, $isVerifiableMock) {
    $adjustedParameterFilter = if ( $object ) {
        $patchedObject = __PatchedClassMethod_GetPatchedObject $patchedMethod $Object
        __PatchedObject_Mock $patchedObject $mockScriptBlock $parameterFilter
        $patchedObject.ParameterFilter
    } else {
        $parameterFilter
    }

    Mock $patchedMethod.FunctionName -parameterfilter $adjustedParameterfilter -Verifiable:$IsVerifiableMock -MockWith $mockScriptBlock
}

function __MethodMocker_Unmock($className, $methodName, $isStatic, $object, $allMocks) {
    $patcher = __MethodPatcher_Get

    $targetMethods = if ( $allMocks ) {
        __MethodPatcher_GetPatchedMethods $patcher
    } else {
        __MethodPatcher_QueryPatchedMethods $patcher $ClassName $MethodName $Static $Object
    }

    $targetMethods | foreach {
        __MethodPatcher_Unpatch $patcher $_ $object
    }
}