<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549-1004

                                    FORM 10-Q

(MARK ONE)

[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

                  FOR THE QUARTERLY PERIOD ENDED APRIL 1, 2000

                                       OR

[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

                        COMMISSION FILE NUMBER 0 - 20666


                                 MICROTEST, INC.
                  (Exact name of registrant as specified in its charter)

             DELAWARE                                        86-0485884
  (State or other jurisdiction of                          (IRS employer
      incorporation)                                   identification number)


                             4747 NORTH 22ND STREET
                             PHOENIX, ARIZONA 85016
                                 (602) 952-6400

               (Address, including zip code, and telephone number,
                      including area code, of registrant's
                          principal executive offices)

      INDICATE BY CHECK MARK WHETHER THE REGISTRANT (1) HAS FILED ALL REPORTS
REQUIRED TO BE FILED BY SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
1934 DURING THE PRECEDING 12 MONTHS (OR FOR SUCH SHORTER PERIOD THAT THE
REGISTRANT WAS REQUIRED TO FILE SUCH REPORTS), AND (2) HAS BEEN SUBJECT TO THE
FILING REQUIREMENTS FOR AT LEAST THE PAST 90 DAYS.

                                    YES X    NO

       AT MAY 2, 2000, THERE WERE 8,675,342 SHARES OF COMMON STOCK OUTSTANDING,
EXCLUSIVE OF TREASURY SHARES HELD BY THE REGISTRANT.
<PAGE>   2
                        MICROTEST, INC. AND SUBSIDIARIES
                                      INDEX


<TABLE>
<CAPTION>

                                                                        PAGE
                                                                        ----
<S>                                                                    <C>
PART I.    FINANCIAL INFORMATION

       Item 1.  Financial Statements

                  Consolidated Balance Sheets-
                     April 1, 2000 and December 31, 1999                  3

                  Consolidated Statements of Operations-
                     Three Months Ended
                     April 1, 2000 and March 27, 1999                     4

                  Consolidated Statements of Cash Flows-
                     Three Months Ended
                     April 1, 2000 and March 27, 1999                     5

                  Notes to Consolidated Financial Statements             6-9

       Item 2.  Management's Discussion and Analysis of
                  Financial Condition and Results of Operations         10-12


PART II.   OTHER INFORMATION

       Item 1.  Legal Proceedings                                         13

       Item 6.  Exhibits and Reports on Form 8-K                          14

SIGNATURES                                                                14
</TABLE>


                                       2
<PAGE>   3
                        MICROTEST, INC. AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS
                      (IN THOUSANDS, EXCEPT SHARE AMOUNTS)
<TABLE>
<CAPTION>

                                                                                 April 1,     December 31,
                                                                                  2000           1999
                                                                                --------       --------
                                                                               (unaudited)
<S>                                                                             <C>           <C>
                            ASSETS
CURRENT ASSETS:
    Cash and cash equivalents                                                   $ 11,719       $ 10,431
    Restricted investments                                                           296            293
    Accounts receivable, net of allowances for doubtful accounts of $228
        and $171, and sales returns of $456 and $422, respectively                 8,544          7,828
    Inventories, net                                                               3,895          4,289
    Prepaid expenses                                                                 865            864
    Income taxes receivable                                                        2,198          2,777
    Deferred income taxes                                                          1,030          1,030
                                                                                --------       --------
      Total current assets                                                        28,547         27,512
                                                                                --------       --------
PROPERTY AND EQUIPMENT, NET                                                        2,079          2,238
                                                                                --------       --------
OTHER ASSETS:
    Capitalized software, net of accumulated amortization of $1,703
        and $1,510, respectively                                                   1,067          1,260
    Deferred income taxes                                                          1,783          1,783
    Other                                                                            980          1,263
                                                                                --------       --------
      Total other assets                                                           3,830          4,306
                                                                                --------       --------
                                                                                $ 34,456       $ 34,056
                                                                                ========       ========
              LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
    Accounts payable                                                            $  2,326       $  2,939
    Accrued liabilities                                                            2,095          2,204
    Accrued payroll and employee benefits                                          1,260          1,160
    Accrued deferred compensation                                                    296            293
                                                                                --------       --------
      Total current liabilities                                                    5,977          6,596
                                                                                --------       --------
COMMITMENTS AND CONTINGENCIES (Note 6)

STOCKHOLDERS' EQUITY:
    Common stock, $.001 par value, 15,000,000 shares authorized; 8,675,342
        shares and 8,555,137 shares outstanding, respectively                          9              9
    Additional paid-in capital                                                    35,106         34,521
    Accumulated deficit                                                           (5,418)        (5,852)
                                                                                --------       --------
                                                                                  29,697         28,678
    Less: treasury stock, at cost, 232,520 shares                                 (1,218)        (1,218)
                                                                                --------       --------
       Total stockholders' equity                                                 28,479         27,460
                                                                                --------       --------
                                                                                $ 34,456       $ 34,056
                                                                                ========       ========
</TABLE>

              The accompanying notes are an integral part of these
                          consolidated balance sheets.


                                       3
<PAGE>   4
                        MICROTEST, INC. AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF OPERATIONS
               THREE MONTHS ENDED APRIL 1, 2000 AND MARCH 27, 1999
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                Three Months Ended
                                                              April 1,      March 27,
                                                                2000          1999
                                                              --------      --------
                                                                    (unaudited)
<S>                                                           <C>            <C>
NET REVENUE                                                   $ 11,601       $  9,001
COST OF REVENUE                                                  4,945          3,951
                                                              --------       --------
      Gross profit                                               6,656          5,050
                                                              --------       --------
OPERATING EXPENSES:
    Sales and marketing                                          2,975          3,177
    Research and development                                     1,993          1,701
    General and administrative                                   1,368          1,402
    Special charge                                                  --            524
                                                              --------       --------
      Total operating expenses                                   6,336          6,804
                                                              --------       --------
INCOME (LOSS) FROM OPERATIONS                                      320         (1,754)
OTHER INCOME, NET                                                  134             63
                                                              --------       --------
INCOME (LOSS) BEFORE INCOME TAXES                                  454         (1,691)
INCOME TAX (PROVISION) BENEFIT                                     (20)           306
                                                              --------       --------
INCOME (LOSS) BEFORE CUMULATIVE EFFECT
  OF CHANGE IN ACCOUNTING PRINCIPLE                                434         (1,385)
CUMULATIVE EFFECT OF CHANGE IN
  ACCOUNTING PRINCIPLE, NET OF TAX                                  --           (117)
                                                              --------       --------
NET INCOME (LOSS)                                             $    434       $ (1,502)
                                                              ========       ========

BASIC EARNINGS (LOSS) PER SHARE:
    Income (loss) before change in accounting principle       $    .05       $   (.17)
    Cumulative effect of change in accounting principle             --           (.02)
                                                              --------       --------
    Net income (loss)                                         $    .05       $   (.19)
                                                              ========       ========
    Weighted average common shares outstanding - basic           8,383          8,049
                                                              ========       ========

DILUTED EARNINGS (LOSS) PER SHARE:
    Income (loss) before change in accounting principle       $    .05       $   (.17)
    Cumulative effect of change in accounting principle             --           (.02)
                                                              --------       --------
    Net income (loss)                                         $    .05       $   (.19)
                                                              ========       ========
    Weighted average common shares outstanding - diluted         9,133          8,049
                                                              ========       ========
</TABLE>


              The accompanying notes are an integral part of these
                       consolidated financial statements.


                                       4
<PAGE>   5
                        MICROTEST, INC. AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
               THREE MONTHS ENDED APRIL 1, 2000 AND MARCH 27, 1999
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                 Three Months Ended
                                                               April 1,      March 27,
                                                                2000           1999
                                                              --------       --------
                                                                    (unaudited)
<S>                                                           <C>            <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income (loss)                                           $    434       $ (1,502)
    Adjustments to reconcile net income (loss) to net
    cash provided by (used in) operating activities:
  Depreciation and amortization                                    377            494
  Change in accounts receivable allowances                          91           (554)
  (Increase) decrease in accounts receivable                      (807)         1,586
  (Increase) decrease in income taxes receivable                   579            (46)
  Decrease in inventories                                          394             91
  (Increase) decrease in prepaid expenses and other assets         282           (146)
  Increase in deferred income taxes                                 --           (332)
  Decrease in accounts payable                                    (613)          (945)
  Increase (decrease) in accrued liabilities                      (109)           272
  Increase in accrued payroll and employee benefits                100             69
                                                              --------       --------

  Net cash provided by (used in) operating activities              728         (1,013)
                                                              --------       --------

CASH FLOWS FROM INVESTING ACTIVITIES:
  Capital expenditures                                             (25)          (211)
  Capitalized software                                              --            (78)
                                                              --------       --------

  Net cash used in investing activities                            (25)          (289)
                                                              --------       --------

CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from sale of common stock                               585             83
                                                              --------       --------

  Net cash provided by financing activities                        585             83
                                                              --------       --------

NET INCREASE (DECREASE) IN CASH AND
CASH EQUIVALENTS                                                 1,288         (1,219)

CASH AND CASH EQUIVALENTS, beginning of period                  10,431          9,618
                                                              --------       --------

CASH AND CASH EQUIVALENTS, end of period                      $ 11,719       $  8,399
                                                              ========       ========
</TABLE>

              The accompanying notes are an integral part of these
                       consolidated financial statements.


                                       5
<PAGE>   6
                        MICROTEST, INC. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (UNAUDITED)



(1)      BASIS OF PRESENTATION:

         The accompanying consolidated financial statements include the accounts
of Microtest, Inc. and its wholly owned subsidiaries (the "Company"). All
significant intercompany balances and transactions have been eliminated in
consolidation.

         The accompanying unaudited consolidated financial statements have been
prepared in accordance with generally accepted accounting principles for interim
financial information and the instructions to Form 10Q. Accordingly, they do not
include all information and footnotes required by generally accepted accounting
principles for complete financial statements. In the opinion of management, the
accompanying consolidated financial statements include all adjustments,
consisting only of normal recurring adjustments which are necessary for a fair
statement of the results of operations and consolidated financial position for
the interim periods presented. Certain information and footnote disclosures
normally included in full year financial statements have been condensed or
omitted pursuant to interim reporting rules and regulations. Although the
Company believes that the disclosures are adequate to make the information
presented not misleading, it is suggested that these financial statements be
read in conjunction with the consolidated financial statements and the notes
thereto included in the Company's 1999 Annual Report to shareholders and report
on Form 10-K. The results of operations for the three months ended April 1, 2000
are not necessarily indicative of the results to be expected for a full fiscal
year.

(2)      INVENTORIES:

         Inventories consist of the following (in thousands):


<TABLE>
<CAPTION>
                                     April 1,     December 31,
                                       2000          1999
                                     -------      ---------
                                   (unaudited)
<S>                               <C>            <C>
Raw materials                        $ 1,031       $ 1,154
Work-in-process                           64            99
Finished goods                         3,136         3,738
                                     -------       -------
                                       4,231         4,991
Less:  Allowance for excess and
       obsolete inventory               (336)         (702)
                                     -------       -------
                                     $ 3,895       $ 4,289
                                     =======       =======
</TABLE>


                                       6
<PAGE>   7
(3)      EARNINGS (LOSS) PER SHARE:

         The following table sets forth the computation of basic and diluted net
income (loss) per share:

<TABLE>
<CAPTION>
                                                               April 1,        March 27,
                                                                 2000            1999
                                                            -------------   -------------
<S>                                                         <C>             <C>
         Net income (loss)                                  $         434   $      (1,502)
                                                            =============   ==============

         Weighted average common shares
            outstanding                                             8,383           8,049

         Effect of stock options                                      750              --
                                                            -------------   -------------

         Weighted average common and common
            equivalent shares outstanding                           9,133           8,049
                                                            =============   ==============

         Basic net income (loss) per share                  $         .05   $        (.19)
                                                            =============   ==============

         Diluted net income (loss) per share                $         .05   $        (.19)
                                                            =============   ==============
</TABLE>



 (4)     SEGMENT REPORTING:

         The Company is organized into two reportable business segments: Network
Test and Measurement ("NTM") and Network Appliance and Storage ("NAS").

         The NTM business segment includes hand held products used as network
certification and troubleshooting tools in the installation and operation of
computerized networks. The NTM segment consists of devices for testing fiber
optic and copper networks, as well as, active operational LANs. The NTM business
segment consists of products that are used by service providers and system
integrators to perform critical cabling certification and network diagnostics.

         The NAS business segment consists of a family of server appliances and
server products. Server appliances are network infrastructure devices designed
to facilitate the exchange of information over a computing network. The
Company's server appliances use Linux as an open source operating system and
encompass hard disk storage devices, as well as, optical (CD-ROM and DVD-ROM)
storage devices. NAS products are designed to enable organizations to easily
develop, store, manage, and access information and knowledge bases. The NAS
reportable business segment includes the Company's H+H subsidiary that develops
and sells several software products, CD-ROM networking systems and service
maintenance contracts in Europe.


                                       7
<PAGE>   8
         Information related to the operations of the Company in different
business segments for the first quarter ended April 1, 2000 and March 27, 1999
is set forth below.
<TABLE>
<CAPTION>
                                                 NAS         NTM         Total
                                              ---------   ---------    ---------
<S>                                 <C>       <C>          <C>          <C>
Net revenue:                        2000      $ 2,807      $ 8,794      $11,601
                                    1999 (1)    3,111        5,890        9,001

Gross profit:                       2000        1,868        4,788        6,656
                                    1999 (1)    1,755        3,295        5,050
</TABLE>

<TABLE>
<CAPTION>

                                          April 1,      March 27,
                                           2000           1999
                                          -------       --------
<S>                                       <C>           <C>
Gross profit for reportable segments      $ 6,656       $ 5,050
Unallocated amounts:
  Operating expenses                       (6,336)       (6,804)
  Other income, net                           134            63
                                          -------       -------
Income (loss) before income taxes         $   454       $(1,691)
                                          =======       =======
</TABLE>

(1) Includes $1.5 million and $0.9 million of net revenue and gross profit,
respectively, from the NAS enterprise systems market which we exited in the
third quarter of 1999.

Net revenues to unaffiliated customers by principal geographic area for the
first quarter ended April 1, 2000 and March 27, 1999, follows:

<TABLE>
<CAPTION>

                                          April 1,      March 27,
                                            2000          1999
                                          -------       -------
<S>                                       <C>           <C>
North America                             $ 6,133       $ 4,893
International                               5,468         4,108
                                          -------       -------

Net revenues                              $11,601       $ 9,001
                                          =======       =======
</TABLE>


(5)      MAJOR CUSTOMERS:

         Graybar Electric Company, Inc. accounted for 10% and 12% of total
revenues for the quarter ended April 1, 2000 and March 27, 1999, respectively.


                                       8
<PAGE>   9
 (6)     COMMITMENTS AND CONTINGENCIES:

         The Company is subject to legal claims in the ordinary course of
business. Management believes that the Company's liability, if any, with respect
to such matters will not have a material adverse effect on the Company's
financial condition and results of operations.

         On March 8, 1999 and April 7, 1999, the Company was named as a
defendant in two purported class action lawsuits filed in the United States
District Court for the District of Arizona. The two lawsuits contain
substantially the same allegations and were brought on behalf of a class of
persons who purchased Microtest common stock between April 14, 1998 and March 2,
1999. The complaints allege claims under Section 10(b) and SEC Rule 10b-5 of the
Securities and Exchange Act of 1934. The claims further allege that the Company
made misrepresentations or omissions concerning its financial statements that
artificially inflated the price of the Company's common stock. On November 29,
1999, a motion to dismiss the lawsuit was filed. On January 10, 2000, the Court
heard arguments on the motion to dismiss. This motion is currently pending. The
Company intends to defend the actions vigorously. The Company is unable to
predict the ultimate outcome of this litigation. If the lawsuits were ultimately
determined adversely to the Company, it could have a material effect on our
results of operations and financial condition.

         The Securities and Exchange Commission ("SEC") is engaged in an
investigation relating primarily to accounting matters of the Company. They have
requested and received documents from us and taken testimony from certain former
employees. The SEC has not indicated whether they intend to formally expand the
scope of the investigation, or take any other measures. They have not, to date,
asserted any specific claims, or remedy. The Company is unable to predict the
effect, if any, of this inquiry.


                                       9
<PAGE>   10
                        MICROTEST, INC. AND SUBSIDIARIES
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FORWARD-LOOKING STATEMENTS AND FACTORS THAT MAY AFFECT RESULTS

         Except for the historical information contained herein, this Report
contains forward-looking statements within the meaning of The Private Securities
Litigation Reform Act of 1995. Words such as "believe," "expect," "intend,"
"anticipate," "estimate," "project," and similar expressions identify
forward-looking statements, which speak only as of the date the statement was
made. Such statements may include, but not be limited to, projections of
revenues, income or loss, capital expenditures, plans for future operations,
financing needs or plans, the impact of inflation, and plans relating to our
products or services, as well as assumptions relating to the foregoing.

         Forward-looking statements are inherently subject to risks and
uncertainties, some of which cannot be predicted or quantified. Future events
and actual results could differ materially from those set forth in, contemplated
by, or underlying the forward-looking statements. Additional risk factors that
could cause actual results to differ materially from those expressed in such
forward-looking statements are set forth in Exhibit 99 which is attached hereto
and incorporated by reference into this Quarterly Report on Form 10-Q. The
Company undertakes no obligation to publicly update or revise any
forward-looking statements, whether as a result of new information, future
events, or otherwise. This Report should be read in conjunction with our Report
on Form 10-K for the fiscal year ended December 31, 1999.

         All references to "we," "our," "us," or "Microtest" refer to Microtest,
Inc. and its subsidiaries.

RESULTS OF OPERATIONS

         REVENUE. Net revenue for the quarter ended April 1, 2000 was $11.6
million, an increase of 29% from revenue of $9.0 million for the corresponding
quarter last year. Revenue increased primarily due to increased NTM and NAS
demand for our OMNIScanner, OMNIFiber, Microscanner and Virtual CD products,
offset by the effect of our closure of the Nashua, New Hampshire facility in the
third quarter of 1999 and the discontinuance of its NAS enterprise product
sales. Revenue growth, exclusive of the prior year effect of discontinued NAS
enterprise product sales, was 55% compared to the corresponding quarter last
year.

         We distribute products in both the United States and international
markets. United States net revenues were $6.1 million and $4.9 million,
representing 53% and 54% of net revenue, for the first quarters of 2000 and
1999, respectively. The 25% increase in United States net revenue in the first
quarter of 2000 from the first quarter of 1999 was primarily due to increased
domestic demand for the OMNIScanner products.

         International sales were $5.5 million and $4.1 million, representing
47% and 46% of net revenue, for the first quarters of 2000 and 1999,
respectively. The 34% increase in international sales in the first quarter of
2000 from the first quarter of 1999 was primarily due to increased sales of our
OMNIScanner and Virtual CD software product worldwide as a result of expanding
our sales and marketing presence in Europe, Latin America, and the Asia Pacific
region during the latter half of 1999.


                                       10
<PAGE>   11
         GROSS PROFIT. Gross profit was $6.7 million, or 57.4%, and $5.1
million, or 56.1%, for the three months ended April 1, 2000 and March 27, 1999,
respectively. Gross margin increased due to the absence of lower margin CD-ROM
enterprise system sales and an increase in higher margin product sales,
including our Virtual CD software product. Gross margins may fluctuate on a
quarterly basis because of product mix, pricing actions and changes in sales and
inventory allowances.

         SALES AND MARKETING. Sales and marketing expenses were $3.0 million, or
26% of net revenue, and $3.2 million, or 35% of net revenue, for the three
months ended April 1, 2000 and March 27, 1999, respectively. The decrease in
marketing and sales expenses was primarily related to reduced expenses as a
result of our exiting the enterprise optical NAS business during 1999, offset by
additional sales and marketing investments in our Asia Pacific and Latin America
regions.

         RESEARCH AND DEVELOPMENT. Research and development expenses were $2.0
million, or 17% of net revenue, and $1.7 million, or 19% of net revenue, for the
three months ended April 1, 2000 and March 27, 1999, respectively. This increase
was the result of additional investments into research and development
activities in connection with the recently introduced FileZerver product and the
effect of software development costs now being expensed, whereas in prior year
these costs were capitalized. Beginning July 1999, we changed our development
process and believe that new product development is essentially complete with
the establishment of technological feasibility. Accordingly, software costs are
currently expensed as incurred.

         GENERAL AND ADMINISTRATIVE. General and administrative expenses were
$1.4 million in both quarters ended April 1, 2000 and March 27, 1999. General
and administrative expenses were 12% and 16% of net revenue for the first
quarters of 2000 and 1999, respectively, as revenue increased at a significantly
greater rate than these expenses.

         SPECIAL CHARGE. The special charge recorded in the first quarter of
1999 represents severance expenses taken to recognize the restructuring of our
management organization.

         EFFECTIVE TAX RATE. Income taxes provided for the first quarter ended
April 1, 2000 consisted of foreign income taxes. United States taxes were not
provided due to our existing net operating loss carryforwards, as well as, the
reversal of valuation allowances provided for in 1999 that offset a provision
for taxes.

         CUMULATIVE EFFECT OF A CHANGE IN ACCOUNTING PRINCIPLE. The cumulative
effect of a change in accounting principle, recorded in the first quarter of
1999, reflects the write-off of international product translation costs that had
previously been capitalized. The write-off is in accordance with AICPA Statement
of Position 98-5, "Reporting on the Costs of Start-up Activities."

LIQUIDITY AND CAPITAL RESOURCES

         We held cash and cash equivalents of $11.7 million at April 1, 2000
compared to $10.4 million at December 31, 1999. Working capital was $22.6
million at April 1, 2000 compared to $20.9 million at December 31, 1999. During
the quarter ended April 1, 2000, cash flows provided by operations were $0.7
million, resulting primarily from net income of $0.4 million, noncash
depreciation and amortization of $0.4 million, decreases in inventory of $0.4
million, income tax receivables of $0.6 million and other assets of $0.3
million; offset by increases in net trade receivables of $0.7 million and
decreases in accounts payable and accrued liabilities of $0.7 million. Cash
flows provided by financing activities was

                                       11
<PAGE>   12
$0.6 million for the quarter ended April 1, 2000 primarily due to the exercise
of common stock options and issuance of common stock in connection with our
employee stock purchase plan.

         Historically, we have financed our cash requirements principally
through cash flow from operating activities, the sale of common stock through an
initial public offering in October 1992 and the exercise of stock options. We
have no long-term obligations and expect that our existing working capital,
together with cash flows from operations will be sufficient to meet our
operating and capital needs for at least the next year.


                                       12
<PAGE>   13
                        MICROTEST, INC. AND SUBSIDIARIES
                           PART II. OTHER INFORMATION


ITEM 1.     LEGAL PROCEEDINGS

         From time to time we are subject to litigation in the ordinary course
of business. Our insurance coverage may not be adequate to cover all liabilities
arising out of such claims. We are not engaged in any legal proceedings in the
ordinary course of business that are expected to have a material adverse affect
on our financial condition or results of operations.

         We, Richard G. Meise, our former Chief Executive Officer, Charles
Mihaylo, our former Chief Operating Officer and John O'Block, our former Chief
Financial Officer have been named as defendants in two purported class action
lawsuits: Great Neck Capital Appreciation Investment Partnership, L.P., et. al.
v. Microtest, Inc., et. al., CIV 99-0438 PHX EHC filed on March 8, 1999, in
United States District Court for the District of Arizona and Banks v. Microtest,
Inc., et. al., CIV 99-672 PHX EHC filed on April 7, 1999 in United States
District Court for the District of Arizona. The two lawsuits contain
substantially the same allegations and were brought on behalf of a class of
persons who purchased our common stock between April 14, 1998 and March 2, 1999.
The complaints allege claims under Section 10(b) and SEC Rule 10b-5 of the
Securities and Exchange Act of 1934. The claims further allege that we made
misrepresentations or omissions concerning our financial statements and public
disclosures that artificially inflated the price of our common stock. The
plaintiffs seek an unspecified amount of actual damages, attorney's fees and
costs. On November 29, 1999, a motion to dismiss the lawsuit was filed. On
January 10, 2000, the Court heard arguments on the motion to dismiss. This
motion is currently pending. We intend to defend the actions vigorously. We are
unable to predict the ultimate outcome of this litigation. If the lawsuits were
ultimately determined adversely to us, it could have a material effect on our
results of operations and financial condition.

         The Securities and Exchange Commission ("SEC") is engaged in an
investigation relating primarily to our accounting matters. They have requested
and received documents from us and taken testimony from certain former
employees. The SEC has not indicated whether they intend to formally expand the
scope of the investigation, or take any other measures. They have not, to date,
asserted any specific claims, or remedy. We are unable to predict the effect, if
any, of this inquiry.



                                       13
<PAGE>   14
ITEM 6.     EXHIBITS AND REPORTS ON FORM 8-K

         (a)      Exhibits
<TABLE>
<CAPTION>

Exhibit                                                                     Page or
Number   Description                                                        Method of Filing
------   -----------                                                        ----------------
<S>      <C>                                                                <C>
27       Financial Data Schedule (for electronic submission only)           Filed herewith

99       Private Securities Litigation Reform Act of 1995 Safe Harbor       Filed herewith
         Compliance Statement for Forward-Looking Statements
</TABLE>


         (b)      Reports on Form 8-K

              None.


                                   SIGNATURES

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                 MICROTEST, INC.



       May 15, 2000                /s/ Vincent C. Hren
                                   ------------------------------------------
                                   Vincent C. Hren
                                   President and Chief Executive Officer




       May 15, 2000                /s/ William R. Crowell
                                   ------------------------------------------
                                   William R. Crowell
                                   Vice President, Secretary and Chief Financial
                                   Officer
                                   (Principal Financial Officer)


                                       14