Fix R Unit Tests and Invalid Cursor State Occurrences (#100)

* Fix code causing 'length(x) = 5 > 1' in coercion to 'logical(1)' warning.

* fix failing func execute in sql test due to differing environments

* add unittest for getServerVersion to detect bad cursor error on odbc

* add new R 4.2 to test workflow.

* adjust comment text and variable name

* Fix for spees generation codepath triggering cursor state invalid error

* Fix warning  longer object length is not a multiple of shorter object length

* support for special characters in connection string password

* updated version number of R package to 1.2.1 in DESCRIPTION

* update CRAN snapshot reference

Co-authored-by: Sean Leonard <seleonar@microsoft.com>

.github/workflows/ci.yaml

@@ -29,7 +29,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        r-version: ["3.5.2"]
+        r-version: ["3.5.2", "4.2"]
 
     env:
       # Define CI to skip some test case.
@@ -58,7 +58,7 @@ jobs:
             #Updated odbc pkg is still compatible with R >= 3.2.0
             cran::odbc
             rcmdcheck
-          
+
       - uses: r-lib/actions/check-r-package@v2
         with:
           working-directory: ./R
@@ -91,4 +91,4 @@ jobs:
     - name: Test with pytest
       working-directory: ./Python/tests
       run: |
-        pytest
+        pytest

R/DESCRIPTION

@@ -1,7 +1,7 @@
 Package: sqlmlutils
 Type: Package
 Title: Wraps R code into executable SQL Server stored procedures
-Version: 1.0.0
+Version: 1.2.1
 Author: Microsoft Corporation
 Maintainer: Microsoft Corporation <msrpack@microsoft.com>
 Depends:
@@ -13,7 +13,7 @@ Description: sqlmlutils is a package designed to help users interact with SQL Se
              creating and running stored procedures, and managing packages on the database.
 License: MIT + file LICENSE
 Copyright: Copyright 2016 Microsoft Corporation
-RoxygenNote: 7.1.0
+RoxygenNote: 7.1.2
 Encoding: UTF-8
 Suggests: testthat (>= 2.0.0),
     roxygen2

R/R/executeInSQL.R

@@ -39,7 +39,7 @@ connectionInfo <- function(driver = "SQL Server", server = "localhost", database
         }
         else
         {
-            authorization = sprintf("uid=%s;pwd=%s",uid,pwd)
+            authorization = sprintf("uid=%s;pwd={%s}",uid,pwd)
         }
     }
 

R/R/sqlPackage.R

@@ -474,10 +474,14 @@ sqlRemoteExecuteFun <- function(connection, FUN, ..., useRemoteFun = FALSE, asus
         query <- paste0("EXECUTE AS USER = '", asuser, "';")
     }
 
+    # Addresses Invalid Cursor State issue triggered by PRINT() statements
+    # and DIAG messages from SQL Server.
+    resultSet <- "WITH RESULT SETS((resultColumn varchar(MAX)))"
     query <- paste0(query
                     ,"\nEXEC sp_execute_external_script"
                     ,"\n@language = N'", languageName, "'"
-                    ,"\n,@script = N'",script, "';"
+                    ,"\n,@script = N'",script, "'"
+                    ,"\n",resultSet, ";"
     )
 
     if (!is.null(asuser))
@@ -818,7 +822,7 @@ sqlCheckPackageManagementVersion <- function(connectionString)
 
     version <- sqlPackageManagementVersion(connectionString)
 
-    if (is.null(version) || is.na(version) || length(version) == 0)
+    if (is.null(version) || any(is.na(version)) || length(version) == 0)
     {
         stop("Invalid SQL version is null or empty", call. = FALSE)
     }
@@ -1169,8 +1173,11 @@ getDependentPackagesToInstall <- function(pkgs, availablePackages, installedPack
 
         #
         # Determine if package is available as a binary package
+        # Utilize first of possibly many contributor URLs present
+        # in character vector contribWinBinaryUrl
         #
-        packageProperties <- availablePackages[availablePackages$Package == package & availablePackages$Repository == contribWinBinaryUrl, ]
+        contributorURL <- contribWinBinaryUrl[1]
+        packageProperties <- availablePackages[availablePackages$Package == package & availablePackages$Repository == contributorURL, ]
 
         #
         # When only a source package is available, add LinkingTo dependencies

R/tests/testthat/helper-Setup.R

@@ -51,7 +51,7 @@ testthatDir <- getwd()
 R_Root <- file.path(testthatDir, "../..")
 scriptDirectory <- file.path(testthatDir, "scripts")
 
-options(repos = c(CRAN="https://cran.microsoft.com", CRANextra = "https://mran.microsoft.com/snapshot/2019-02-01"))
+options(repos = c(CRAN="https://cran.microsoft.com/snapshot/2022-07-06"))
 cat("INFO: repos = ", getOption("repos"), sep="\n")
 
 # Compute context specifications

R/tests/testthat/test.executeInSqlTests.R

@@ -93,7 +93,8 @@ test_that("Returning a function object",
         return(func2)
     }
 
-    expect_equal(executeFunctionInSQL(connection, func=func1), func2)
+    # Result of executeFunctionInSQL() will have different environment than func2.
+    expect_equal(executeFunctionInSQL(connection, func=func1), func2, check.environment=FALSE)
 })
 
 test_that("Calling an object in the environment",

R/tests/testthat/test.sqlPackage.unit.R

@@ -22,3 +22,9 @@ test_that("Package management ExtLib", {
     versionClass <- sqlmlutils:::sqlCheckPackageManagementVersion(connectionString = helper_getSetting("connectionStringDBO"))
     expect_equal(versionClass, "ExtLib")
 })
+
+test_that("GetServerVersion() Returns Server Version of R Successfully",{
+    rversion <- sqlmlutils:::getserverVersion(connectionString = cnnstr, languageName = "R")
+    # rversion value truncated, so R may be >= 3.5 (3.5.3) or >= 4.2
+    expect_gte(as.double(rversion[['rversion']]), 3.5)
+})