add tests for verifying the var file content being written is correct

Tasks/PackerBuildV0/Tests/L0.ts

@@ -36,14 +36,43 @@ describe('PackerBuild Suite', function() {
             done();
         });
 
+        it('Writes packer var file successfully for windows template', (done:MochaDone) => {
+            let tp = path.join(__dirname, 'L0Windows.js');
+            let tr : ttm.MockTestRunner = new ttm.MockTestRunner(tp);
+            let match1 = 'writing to file C:\\somefolder\\somevarfile.json content: {"subscription_id":"sId","client_id":"spId","client_secret":"spKey","tenant_id":"tenant","object_id":"oId"}';
+            let match2 = 'writing to file C:\\somefolder\\somevarfile.json content: {"resource_group":"testrg","storage_account":"teststorage","image_publisher":"MicrosoftWindowsServer","image_offer":"WindowsServer","image_sku":"2012-R2-Datacenter","location":"South India","capture_name_prefix":"Release-1","skip_clean":"true","script_relative_path":"dir3\\\\somedir\\\\deploy.ps1","package_path":"C:\\\\dir1\\\\somedir\\\\dir2","package_name":"dir2","script_arguments":"-target \\"subdir 1\\" -shouldFail false"}';
+            tr.run();
+
+            assert(tr.invokedToolCount == 4, 'should have invoked tool four times. actual: ' + tr.invokedToolCount);
+            assert(tr.stdout.indexOf(match1) > -1, 'correctly writes contents of var file (containing azure spn details)');
+            assert(tr.stdout.indexOf(match2) > -1, 'correctly writes contents of var file (containing template variables)');
+
+            done();
+        });
+
         it('Runs successfully for custom template', (done:MochaDone) => {
             let tp = path.join(__dirname, 'L0CustomTemplate.js');
             let tr : ttm.MockTestRunner = new ttm.MockTestRunner(tp);
+
             tr.run();
 
             assert(tr.invokedToolCount == 4, 'should have invoked tool four times. actual: ' + tr.invokedToolCount);
             assert(tr.stderr.length == 0 || tr.errorIssues.length, 'should not have written to stderr');
             assert(tr.succeeded, 'task should have succeeded');
+            done();
+        });
+
+        it('Writes packer var file successfully for custom template', (done:MochaDone) => {
+            let tp = path.join(__dirname, 'L0CustomTemplate.js');
+            let tr : ttm.MockTestRunner = new ttm.MockTestRunner(tp);
+            let match1 = 'writing to file C:\\somefolder\\somevarfile.json content: {"client_id":"abcdef","drop-location":"C:\\\\folder 1\\\\folder-2"}';
+            let match2 = 'writing to file C:\\somefolder\\somevarfile.json content: {}';
+
+            tr.run();
+
+            assert(tr.invokedToolCount == 4, 'should have invoked tool four times. actual: ' + tr.invokedToolCount);
+            assert(tr.stdout.indexOf(match1) > -1, 'correctly writes contents of var file (containing azure spn details)');
+            assert(tr.stdout.indexOf(match2) > -1, 'correctly writes contents of var file (containing template variables)');
 
             done();
         });
@@ -109,8 +138,6 @@ describe('PackerBuild Suite', function() {
             done();
         });
 
-
-
         it('Should copy builtin template to temp location for windows template', (done:MochaDone) => {
             let tp = path.join(__dirname, 'L0WindowsCustomImage.js');
             let tr : ttm.MockTestRunner = new ttm.MockTestRunner(tp);

Tasks/PackerBuildV0/Tests/L0CustomTemplate.ts

@@ -70,9 +70,12 @@ var utMock = {
             console.log('copying ' + source + ' to ' + destination);
         }
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "C:\\somefolder\\somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0Linux.ts

@@ -104,9 +104,12 @@ var utMock = {
     copyFile: function(source: string, destination: string) {
         console.log('copying ' + source + ' to ' + destination);
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "/somefolder/somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0LinuxBuiltinTemplateAdditionalParameters.ts

@@ -107,9 +107,12 @@ var utMock = {
     readJsonFile: function(filePath: string) {
         return "{\"builders\":[{\"type\":\"azure-arm\"}]}";
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "/somefolder/somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0LinuxCustomImage.ts

@@ -109,9 +109,12 @@ var utMock = {
             console.log('copying ' + source + ' to ' + destination);
         }
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "/somefolder/somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0LinuxInstallPacker.ts

@@ -118,9 +118,12 @@ var utMock = {
     copyFile: function(source: string, destination: string) {
         console.log('copying ' + source + ' to ' + destination);
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "/somefolder/somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0Parser.ts

@@ -84,9 +84,12 @@ var utMock = {
     copyFile: function(source: string, destination: string) {
         console.log('copying ' + source + ' to ' + destination);
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "C:\\somefolder\\somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0Windows.ts

@@ -98,9 +98,12 @@ var utMock = {
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "C:\\somefolder\\somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     findMatch: function(root: string, patterns: string[] | string) {
         if(root === DefaultWorkingDirectory) {
             return ["C:\\dir1\\somedir\\dir2"];

Tasks/PackerBuildV0/Tests/L0WindowsBuiltinTemplateAdditionalParameters.ts

@@ -92,9 +92,12 @@ var utMock = {
     readJsonFile: function(filePath: string) {
         return "{\"builders\":[{\"type\":\"azure-arm\"}]}";
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "C:\\somefolder\\somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0WindowsCustomImage.ts

@@ -94,9 +94,12 @@ var utMock = {
             console.log('copying ' + source + ' to ' + destination);
         }
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "C:\\somefolder\\somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0WindowsFail.ts

@@ -91,9 +91,12 @@ var utMock = {
     copyFile: function(source: string, destination: string) {
         console.log('copying ' + source + ' to ' + destination);
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "C:\\somefolder\\somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/Tests/L0WindowsInstallPacker.ts

@@ -106,9 +106,12 @@ var utMock = {
     copyFile: function(source: string, destination: string) {
         console.log('copying ' + source + ' to ' + destination);
     },
-    createTemplateVarFile: function (templateVariables) {
+    generateTemporaryFilePath: function () {
         return "C:\\somefolder\\somevarfile.json";
     },
+    getPackerVarFileContent: function(variables) {
+        return ut.getPackerVarFileContent(variables);
+    },
     writeFile: function(filePath: string, content: string) {
         console.log("writing to file " + filePath + " content: " + content);
     },

Tasks/PackerBuildV0/src/operations/packerBuild.ts

@@ -18,8 +18,10 @@ export async function run(packerHost: packerHost): Promise<any> {
     var variableProviders = packerHost.getTemplateVariablesProviders();
     for (var provider of variableProviders) {
         var variables = await provider.getTemplateVariables(packerHost);
-        let varFilePath = utils.createTemplateVarFile(variables);
-        command.arg(util.format("%s=%s", '-var-file', varFilePath));
+        let filePath: string = utils.generateTemporaryFilePath();
+        let content: string = utils.getPackerVarFileContent(variables);
+        utils.writeFile(filePath, content);
+        command.arg(util.format("%s=%s", '-var-file', filePath));
     }
 
     command.arg(packerHost.getTemplateFileProvider().getTemplateFileLocation(packerHost));

Tasks/PackerBuildV0/src/operations/packerValidate.ts

@@ -14,8 +14,10 @@ export async function run(packerHost: packerHost): Promise<void> {
     var variableProviders = packerHost.getTemplateVariablesProviders();
     for (var provider of variableProviders) {
         var variables = await provider.getTemplateVariables(packerHost);
-        let varFilePath = utils.createTemplateVarFile(variables);
-        command.arg(util.format("%s=%s", '-var-file', varFilePath));
+        let filePath: string = utils.generateTemporaryFilePath();
+        let content: string = utils.getPackerVarFileContent(variables);
+        utils.writeFile(filePath, content);
+        command.arg(util.format("%s=%s", '-var-file', filePath));
     }
 
     command.arg(packerHost.getTemplateFileProvider().getTemplateFileLocation(packerHost));

Tasks/PackerBuildV0/src/utilities.ts

@@ -84,15 +84,18 @@ export function readJsonFile(filePath: string): string {
     return content;
 }
 
-export function createTemplateVarFile (templateVariables: Map<string, string>): string {
+export function generateTemporaryFilePath (): string {
     let filePath: string = path.resolve(tl.getVariable('Agent.TempDirectory'), Math.random().toString(36).replace('0.', '') + '.json');
+    return filePath;
+}
+
+export function getPackerVarFileContent (templateVariables: Map<string, string>): string {
     let res = {};
     templateVariables.forEach((value: string, key: string) => {
         res[key] = value
     });
     let content: string = JSON.stringify(res);
-    writeFile(filePath, content);
-    return filePath
+    return content;
 }
 
 export function writeFile(filePath: string, content: string): void {